eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
10
10.21608/iceeng.2010.32825
32825
Original Article
A Proposed Dynamic Model of Photovoltaic-DG Systems
A. Hassan
1
M. El-Saadawi
2
K. Abo-Al-Ez
3
M. Kandil
4
Dept. of Electrical Engineering, Faculty of Engineering, Mansoura University, Egypt.
Dept. of Electrical Engineering, Faculty of Engineering, Mansoura University, Egypt.
Dept. of Electrical Engineering, Faculty of Engineering, Mansoura University, Egypt.
Dept. of Electrical Engineering, Faculty of Engineering, Mansoura University, Egypt.
Dynamic simulation modeling is so important to predict the energy production of Photovoltaic (PV) systems. It is needed to make informed technical and economical decisions. The simulation models of PV systems in literature are good enough for steady state analysis, but they are not suitable for dynamic analysis of grid operating and control conditions. This paper proposes a dynamic PV model suitable for Decentralized Generation (DG) applications. The proposed model relates the electrical output of the PV system to various input and environmental parameters. The model is developed in Matlab-Simulink environment, and it is validated comparing the developed PV performance characteristic curves with those of the manufacturer's data sheet and those developed by a commercial software package for a Solarex-MSX 60W PV type.
https://iceeng.journals.ekb.eg/article_32825_329c3d89f615e4adb165234b9c2c60d7.pdf
Photovoltaic (PV) model
Decentralized Generation (DG)
Temperature coeffcients
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
21
10.21608/iceeng.2010.32828
32828
Original Article
Comparison of Maximum Power Point Tracking Techniques for Different Types of Photovoltaic Models
Doaa Ibrahim
1
Mohamed Abd-elaziz
2
Mina Youwakim
3
Faculty of Engineering, Cairo University, Cairo, Egypt.
Faculty of Engineering, Cairo University, Cairo, Egypt.
Faculty of Engineering, Cairo University, Cairo, Egypt.
Maximum power point tracking (MPPT) techniques are used in photovoltaic (PV) systems to maximize the PV array output power by tracking continuously the maximum power point (MPP) which depends on panel’s temperature and on irradiance conditions. For low-cost implementations, four methods are introduced in this paper in a comparative study: Hill Climbing/the perturb and observe (P&O), Incremental Conductance (IncCond), Fractional Open-Circuit Voltage and Fractional Short-Circuit Current maximum power point tracking algorithms. These are the most commonly used methods due their implementation ease. In this paper, models of different types of photovoltaic such as Single crystalline, Polycrystalline and Amorphous are implemented and compared based on their characteristics and their MPP tracking efficiency. “MATLAB R2008a” facilities are used for simulation and modeling of different methods of MPPT tracking on different types of PV models mentioned above.
https://iceeng.journals.ekb.eg/article_32828_e6f814b33c4cf31f27736859fc8cbc80.pdf
Maximum power point (MPP)
maximum power point tracking (MPPT)
Perturb and Observe (P&O)
photovoltaic (PV)
Incremental Conductance (IncCond)
MPP tracking efficiency
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
10
10.21608/iceeng.2010.32830
32830
Original Article
A Dynamic Filter Compensator Scheme for Voltage Stabilization and Efficient Utilization of Wind-Grid Interface Systems
Mohamed El-Sayed
1
Adel Sharaf
2
Energy Research Centre, University of Trinidad and Tobago.
Energy Research Centre, University of Trinidad and Tobago.
Energy shortage and global warming issues are among key world challenges in the 21st Century. Wind energy is a renewable clean source, which can reduce carbon dioxide emission. Economical electric energy generation using wind energy production has been rapidly growing for the last two decades. However, the integration of large wind schemecan pose inherent security and power quality problems. The paper presents dynamic simulation of a novel stabilization scheme using a coordinated tri loop error driven controller. The Wind Energy Scheme comprises three key parts. The wind farm, induction generator, Modulated Power Filter compensator MPFC and hybrid System Load. The distribution grid-wind integrated AC system feeding the hybrid load is to be stable and efficient. The integrated wind-grid scheme with all subsystems has been digitally simulated using the Matlab Simulink/Sim-Power software environment. The modulated filter compensator scheme with the coordinated dynamic error driven hybrid controller was fully validated.
https://iceeng.journals.ekb.eg/article_32830_b608f2aeeec00ee7e6b0c5f0ad594b89.pdf
Renewable Wind Energy
Novel Filter Schemes
Voltage Stabilization and Efficient Utilization of wind Energy
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.32832
32832
Original Article
Geothermal Hot Water and Space Heating System in Egypt
H. Farghally
1
F. Fahmy
2
M. EL-Sayed
3
Egyptian Armed Forces.
Benha High Technology Institute, Benha, Egypt.
College of Engineering, Cairo University, Cairo, Egypt.
Direct utilization of geothermal energy refers to the immediate use of the heat energy rather than to its conversion to electrical energy. The primary forms of direct use include heating and cooling. Geothermal energy could be used to supply hot water or could be used with a special equipment (radiators) to make buildings warmer during winter seasons. In general, the geothermal fluid temperatures required for direct heat use are lower than those for economic electric power generation. Most direct use applications use geothermal fluids in the low-to-moderate temperature range between 50o and 150oC. Although Egypt is not characterized by abundant igneous activity, its location in the northeastern corner of the African plate suggests that it possess geothermal resources, especially along its eastern margin. The data indicate that the temperature of 150 oC may be found in the reservoir in the gulf of Suez and red coastal zone. This work designs a geothermal hot water and space heating system to operate in three buildings in a remote area in the Eastern Desert (i.e. school, home & emergency hospital ) and applies to the Umm Huweitat well(sample no. 69 on the Red Sea approximately 20 km north of the city of Safaga.) as a case study.
https://iceeng.journals.ekb.eg/article_32832_36104f7467a2010c8a1fcb6f44be66f1.pdf
Geothermal energy
production well
heat exchanger
radiator
water heater
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.32834
32834
Original Article
Modeling Reliability in Wireless Sensor Networks
Ahmed Hassan
1
Maha Elsabrouty
2
Salwa El-Ramly
3
Ericsson Egypt Ltd., IEEE Graduate Student Member.
Elect. and Comm. Eng. Dept., AASTMT, Cairo, Egypt.
Elect. and Comm. Eng. Dept., Ain Shams University, Cairo, Egypt.
Energy efficient and reliable data forwarding becomes important if resources are limited such as in Wireless Sensor Networks. In this paper, we discuss how the error rate associated with a link affects the overall probability of reliable delivery, and consequently the energy associated with the reliable transmission of a single packet. The analysis includes both fixed-power and variable-power scenarios along with the End-to-End Retransmission (EER) and Hop-by-Hop Retransmission (HHR) techniques. In the EER case, a threshold value for the packet error rate at which both scenarios will result in the same energy costs is defined. The relation between this threshold value and the difference in number of hops between both scenarios is also derived. The simulation results finally confirm the theoretical model.
https://iceeng.journals.ekb.eg/article_32834_56058bbcaadaadd28212929e59e42b2f.pdf
Wireless Sensor Networks
Reliability and Retransmission Techniques
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
9
10.21608/iceeng.2010.32836
32836
Original Article
Effect of XPM on WDM Optical Transmission System in Presence of First- and Second Order GVD
M. Azad
1
M. Islam
2
Institute of Information and Communication Technology , BUET, Bangladesh.
Institute of Information and Communication Technology , BUET, Bangladesh.
Transmission in wavelength division multiplexing (WDM) optical communication system is mainly impaired and ultimately limited by group velocity dispersion (GVD) and cross-phase modulation (XPM). In this paper, we analytically determine and compare the impact of XPM in a WDM system in presence of first- and second order GVD for standard single mode fiber (SSMF) and dispersion shifted fiber (DSF). Even at high bit rate in a first order GVD compensated system, the second order GVD plays a critical role in limiting the distance of optical signal. The results show that XPM crosstalk penalty due to second order GVD is 16 dB more in DSF than that of SSMF for 0.8 nm channel spacing at 10 GHz modulation frequency. It is also found that the spectral characteristics are strongly dependent on the channel spacing and dispersion of the fiber.
https://iceeng.journals.ekb.eg/article_32836_fcc89af781d924fd0efdb2a1e5009415.pdf
Cross-phase modulation
Group velocity dispersion
Power transfer function
Fiber nonlinearity
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
8
10.21608/iceeng.2010.32837
32837
Original Article
Suppression of intermodulation distortion in CATV system using Dual Parallel Mach-Zehnder Modulator
M. Islam
1
Institute of Information and Communication Technology, Bangladesh University of Engineering and Technology, Dhaka-1000, Bangladesh.
Mach-Zehnder (MZ) modulator used in CATV system always produces some intermodulation distortion (IMD) that limits the optical transmission performance significantly. In this paper an analytical model of dual parallel Mach-Zehnder (DPMZ)modulator is proposed to ensure composite second order (CSO) products cancellation and composite third order (CTB) products minimization. We have determined the optimal input optical power splitting ratio with given values of electrode length ratio for a DPMZ modulator. It is found that the effect of CTB is in the allowable range if the input power splitting ratio and electrode length ratio of the primary and secondary MZ modulators are 0.88 and 2.0 respectively.
https://iceeng.journals.ekb.eg/article_32837_478b9cc106b34478bb267b657a043ff5.pdf
Composite second order
composite triple order
analog communication
intermodulation distortion and dual parallel Mach-Zehnder modulator
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.32840
32840
Original Article
A customized 152 bit key DES algorithm
Salah El Agooz
1
Essam Amer
2
Alan Eldin Shehata
3
Mahmoud Ahmed
4
Brig.Gen.Prof.Dr., Military Technical College, Cairo, Egypt.
Col.Dr., Military Technical College, Cairo, Egypt.
Col.Ass.Prof.Dr., Military Technical College, Cairo, Egypt.
Capt.Eng., Egyptian Armed Forces.
In this paper, we proposed a novel technique for modification of the Data Encryption Standard (DES) to ensure a security enhancement against cryptographic attacks that were the main problem in DES algorithm. The proposed modification extended the key size from 64 bit to 152 bit, these extra bits are added to make the S-boxes be dynamically instead of the standard DES where it has static S-boxes, In this paper two approaches are introduced for Algorithm modification. The paper also includes a performance evaluation comparison between the proposed algorithm and the standard DES at different settings for data sizes, data type and encryption/decryption speed. The results show that the proposed techniques for algorithm modification make the DES algorithm stronger against cryptographic attacks compared to standard DES algorithm.
https://iceeng.journals.ekb.eg/article_32840_82642a1594fc610aacbdac9c0f5b434f.pdf
security
DES evaluation
encryption time
throughput
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
10
10.21608/iceeng.2010.32841
32841
Original Article
AMPLITUDE-ONLY PATTERN SYNTHESIS OF NON-UNIFORM LINEAR ARRAY USING A GENERALIZED PATTERN SEARCH OPTIMIZATION
Fikret Tokan
1
Filiz Gunes
2
Yıldız Technical University, İstanbul, Turkey.
Yıldız Technical University, İstanbul, Turkey.
In this work, synthesis of linear array geometry is first formulated as a linearly constrained multi-objective optimization problem with the goals of minimum sidelobe level, null control and high directivity. Then solved by a Generalized Pattern Search (GPS) algorithm for the optimum element locations and excitation amplitudes. The constraints are imposed on the inter-element spacing and dynamic range ratio of the amplitude tapering to reduce mutual coupling effects between the elements. GPS methods are newly discovered, derivative-free methods where the current iterate is updated by sampling the fitness function at a finite number of points along a suitable set of search directions to find a decrease in the function value. Finally, two worked examples are presented that illustrate the use of GPS synthesis method, and the optimization goal in each example is easily achieved. Furthermore the full-wave simulations of the synthesized arrays are also completed to examine the mutual coupling effects. Finally the results of the GPS algorithm are validated by comparing with results obtained using the genetic algorithm, and the results of the uniform and Dolph-Chebyshev arrays, having the same number of element and the same aperture length.
https://iceeng.journals.ekb.eg/article_32841_246e3e4b4a73f82e44d2c364604dd43a.pdf
antenna array
directivity
null control
Generalized Pattern Search (GPS) optimization
radiation pattern
sidelobe suppression
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
7
10.21608/iceeng.2010.32845
32845
Original Article
Radar Matched Filter Based on Lattice Wave Digital Filter Approach
K. Moustafa
1
M. Romeh
2
H. Kamel
3
Assistant prof., Egyptian Armed Force, MTC, Cairo.
Egyptian Armed Force, MTC, Cairo.
Ph.D, Egyptian Armed Force, MTC, Cairo.
Based on the theory of wave digital filters (WDFs), a new model is derived to represent single pulse matched filters for radar applications. This matched filter was obtained by calculating the coefficients of Lattice Wave Digital Filter (LWDF) adaptors by getting filter transfer function that results from arbitrary amplitude transfer function. In this paper, we are interested only to the main loop of the matched filter frequency response and its location of pass-band edges.
https://iceeng.journals.ekb.eg/article_32845_a7b82fb3fd2b9b37a26b8a57a1f71e85.pdf
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
12
10.21608/iceeng.2010.32847
32847
Original Article
Observability Analysis and Kalman Filter Applications for Error Estimation of SDINS Ground Alignment
I. Arfaa
1
Y. Elhalwagy
2
R. Elbordany
3
M. Deab
4
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
A systematic analysis of the observability of a strap down inertial navigation system (SDINS) in ground alignment with Bar-Itzhack and Berman’s error model is presented. It is shown that the unobservable states are separately contained in two de-coupled subspaces. The constraints on the selection of unobservable states are discussed. An estimation algorithm, which is derived fully from the horizontal velocity outputs for computing the misalignment angles, is provided. It reveals that the azimuth error can be entirely estimated from the estimates of leveling error and leveling error rate, without using gyro output signals explicitly. Moreover, estimate of the strap down inertial navigation systems errors are presented using appropriate Kalman filter design.
https://iceeng.journals.ekb.eg/article_32847_8e832553fd9c86dfb872618081455387.pdf
Inertial Sensors Alignment
SDINS
KF
Observability Analysis
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
26
10.21608/iceeng.2010.32850
32850
Original Article
Decision Threshold Setting for Radar System Identification Using HMM
Hossam Eldin Hassan
1
Egyptian Armed Forces.
The principal objective of applying the Hidden Markov Model (HMM) in Radar System Identification (RSI) is to show that the recognition performance of a HMM exceeds that of the conventional methods such as cross-correlation. An important offshoot of this research is to provide a method for choosing the optimal model parameters for an actual radar signal so that a library of HMMs can be created and used for practical EW tasks. Therefore, optimal threshold settings between competing HMMs should be investigated to improve overall recognition performance. In this paper, a new method for predicting the false recognition rates and deriving optimal decision regions between competing HMMs that model the dynamic behavior of the radars stored in the threat library of the Electronic Warfare (EW) is proposed. The proposed method uses only the prior pulse repetition interval (PRI) statistics of a known radar and template matching which can lead to a qualitative understanding into radar correlation. Moreover, the paper investigates the idea of a threshold settingso that the receiver can have a reject option and decide that an observation sequence does not belong to any of the HMMs in its library. Computer simulations are performed through the paper to validate the obtained theoretical analysis.
https://iceeng.journals.ekb.eg/article_32850_cb1100fd7778d0edc97f4e584e87b355.pdf
Hidden Markov Model (HMM)
Radar System Identification (RSI)
Pulse Repetition Interval (PRI)
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
11
10.21608/iceeng.2010.32851
32851
Original Article
Recursive Two Dimensional Adaptive Digital Filter
AHMED ABD EL-RAZEK
1
Electrical and Computer Engineering Dept., Higher Technological Institute, tenth of Ramadan city.
In this paper, a new scheme of recursive two -dimensional (2-D) adaptive digital filter is presented. It consists of a forward section, a feedback section, and decision block. Each section is realized as conventional non-recursive adaptive filter. Either 2 -D adaptive LMS or sign function algorithm can be used for adaptation. The proposed recursive filter functions as a 2-D adaptive line enhancer (ALE) for images contaminated with noise. Its performance is compared with that of Hadhoud [1].
https://iceeng.journals.ekb.eg/article_32851_f618533ee05cdb25f6502cebf9d44761.pdf
Recursive two -dimensional (R-2-D)
adaptive line enhancer ( ALE)
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
10
10.21608/iceeng.2010.32953
32953
Original Article
Analogy between Arithmetic Fuzzy Logic-based Representation Approach and Conventional Fuzzy Theory for Modeling and Optimization in Fully Fuzzy Environment
Walaa Gabr
1
Egyptian Holding Company of Electricity, Ministry of Electricity and Energy, Abbassia Square, Cairo, Egypt.
This paper presents further development of the arithmetic fuzzy logic-based representation. The concept was originally proposed by Gabr and Dorrah for linear and nonlinear system using the notion of the normalized fuzzy matrices. The investigation is based on the dual cell representation, expressed by replacing each parameter with a pair of parentheses, the first is the actual value and the second is corresponding fuzzy level. The analogy of the proposed Arithmetic Fuzzy Logic-based Representation technique with the Conventional Fuzzy Theory are derived for various cases of operations ofaddition, subtraction, multiplication and division. It is shown that the suggested approach is identical to that of the conventional fuzzy theory for addition operations and gives average weighted fuzziness interval results of the subtraction operations. Moreover, it yields similar results of multiplications and divisions operations after ignoring the second order relative variations terms. Finally, the suggested approach is demonstrated to offer additional advantages of linearity, reversibility, simplicity, and applicability.
https://iceeng.journals.ekb.eg/article_32953_bf122bca2e7b9cd6091c92157d7a2459.pdf
Conventional Fuzzy Theory
Fuzzy-based Logic Algebra
Normalized Fuzzy Matrices
Arithmetic Fuzzy Logic-based Representation
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
11
10.21608/iceeng.2010.32955
32955
Original Article
Development of new fuzzy logic-based ant colony optimization algorithm for combinatorial problems
Ahmed Ginidi
1
Ahmed Kamel
2
Hassen Dorrah
3
Faculty of Engineering, Cairo University, Giza, Egypt.
Faculty of Engineering, Cairo University, Giza, Egypt.
Faculty of Engineering, Cairo University, Giza, Egypt.
This paper is directed towards developing a new fuzzy-logic based Ant Colony Optimization algorithm (FACO). The proposed algorithm takes into consideration the uncertainties that can be found in both the heuristic and the pheromone trails. This is achieved by representing the parameters of the problem and the metaheuristic algorithm as a pair of value and fuzzy level. The fuzzy level is considered as an indication of the uncertainty in the corresponding parameter. A stochastic-based technique is proposed to enable the artificial ant to choose the best incoming step based on the values of the probabilities and their corresponding fuzzy levels. The proposed FACO gives the optimal solution in a form of an optimal value and its corresponding fuzzy level. The proposed FACO is tested using the benchmark Quadratic Assignment Problem (QAP) and Travelling Salesman Problem (TSP). The results indicate that the developed FACO gives better optimal values with improved performance.
https://iceeng.journals.ekb.eg/article_32955_9056f0d49c7d4d2ade5f274e41198725.pdf
Ant colony algorithm
Quadratic Assignment Problem
Travelling Salesman Problem
Combinatorial Problems
Fuzzy systems
Fuzzy-based Logic Algebra
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
9
10.21608/iceeng.2010.32956
32956
Original Article
Neurofuzzy Computing aided Fault Diagnosis of Nuclear Power Reactors
Ashraf Aboshosha
1
Egyptian Atomic Energy Authority (AEA), Armed Forces.
Nuclear Power Reactors (NPRs) are large in scale and complex, so the information from local fields is excessive, and therefore plant operators cannot properly process it. When a plant malfunction occurs, there are data influxes, so the cause of the malfunction cannot be easily and promptly identified. A typical NPR may have around 2,000 alarms in the Main Control Room (MCR) in addition to the display of analog data [1--4]. During plant transients, mode changes and component trips, hundreds of alarms may be activated in a short time. Hence, to increase the plant safety, this article proposes the operator support systems based on neurofuzzy assisted alarming and diagnosis system. Throughout this framework the neurofuzzy fault diagnosis system is employed to fault diagnosis of nuclear reactors. To overcome the weak points of both linguistic and neuro learning based approaches an integration between the neural networks and fuzzy logichas been applied by which the integrated system will inherit the strengths of both approaches.
https://iceeng.journals.ekb.eg/article_32956_cd68c2f4252d518f34efa26b09d5eba2.pdf
Neurofuzzy computing
fault diagnosis
nuclear power reactors
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
17
10.21608/iceeng.2010.32957
32957
Original Article
Finite-Difference Time-Domain Analysis and Design of Transition Interconnects in Microstrip-to-Microstrip Package
Hussein Ghouz
1
College of Engineering, Arab Academy for Science, Technology and Maritime Transport, Cairo, Egypt.
In this paper, a new transition between GaAs chip (Microstrip) and Aluminum motherboard (Microstrip) with a single interconnect and one common ground has been analyzed and investigated using Finite-Difference Time-Domain method. The objective is to optimize the package performance over a wide frequency band up to 50 GHz. This is carried out by performing a parametric analysis to study the effects of the transition interconnect (discontinuity) on the overall package performance. The scattering parameters of interconnect are used as a performance measure of package under investigation. Good results have been obtained up 50 GHz; S12/ S21 and S11/S22 are about -0.4 and -20 dB respectively.
https://iceeng.journals.ekb.eg/article_32957_d17c44eee547a0ff422ec0a450d75471.pdf
High frequency interconnects in MMIC packages
finite-difference time-domain "FDTD"
and Flip-Chip
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
18
10.21608/iceeng.2010.32958
32958
Original Article
Finite-Difference Time-Domain Analysis and Design of Transition Interconnects in Coplanar-to-Microstrip Package
Hussein Ghouz
1
College of Engineering, Arab Academy for Science, Technology and Maritime Transport, Cairo, Egypt.
This paper presents analysis, investigation, and design of a new transition between CPW GaAs chip and Aluminum MS motherboard with single via interconnect and one common CPW-ground. Finite-Difference Time-Domain method "FDTD" is used as our computational electromagnetic technique. The FDTD Gaussian pulse responses of the package in presence and absence of interconnect characterized its electromagnetic features using the Fourier Transformation. In frequency domain, these responses give an accurate computation of the scattering parameters of the discontinuity over a wide band of frequencies. The main objective of this paper is to use these parameters to investigate and evaluate the overall package performance as function of substrate type of chip and motherboard as well as interconnect geometry. The interconnect geometry has a great impact on the overall package performance. Optimization of the package performancecan be achieved by reconfiguring the interconnect geometry. Excellent S-parameters of the package have been obtained up to 30 GHz; S11/S22 and S21/S12 are of order -20 dB and – 0.4 dB respectively.
https://iceeng.journals.ekb.eg/article_32958_1cf651808b96327118d0a40261a171ee.pdf
High frequency interconnects in MMIC packages and finite-difference time-domain "FDTD"
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.32959
32959
Original Article
Compact Dual-Band Microstrip Patch Array Antenna for MIMO 4G LTE and WLAN Systems
M. Soliman
1
W. Swelam
2
Ali Gomaa
3
T. Taha
4
Egyptian Armed Forces.
Egyptian Armed Forces.
Shobraa Faculty of Engineering, Benha University, Cairo, Egypt.
Faculty of Electronic Engineering, Menoufia University, Menouf, Egypt.
In this paper, a compact dual-band microstrip patch array antenna for both the MIMO 4G LTE and the WLAN systems is developed. Design simulation and optimization processes are carried out with the aid of the Advanced Design System (ADS) electromagnetic simulator that uses the full–wave Method of Moment (MoM) numerical technique [1]. The losses that are caused by both the substrate and metallization are taken into account during the simulation process. Array compactness was our target during the design process to integrate the array with the new mobile communication equipments.
https://iceeng.journals.ekb.eg/article_32959_defeef7b5cb5e783e54425f746074ca4.pdf
Dual-Band Antenna
Microstrip Patch Array Antenna
MIMO Antenna and 4G antenna systems
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.32960
32960
Original Article
Performance Enhancement for Dual-band Circularly Polarized Patch Antenna using Under-slot EBG Structure
M. Salama
1
A. El-Tager
2
A. Mamdouh
3
M. Eleiwa
4
Signal Department, Egyptian Armed Forces.
Electronic Engineering Department, Military Technical College, Cairo, Egypt.
Electronic Engineering Department, Military Technical College, Cairo, Egypt.
Electronic Engineering Department, Military Technical College, Cairo, Egypt.
In this paper, a novel circularly polarized, dual-frequency, slotted square patch is designed, implemented and measured. This patch is designed by applying electromagnetic band-gap (EBG) structures in the ground plane under the slots with probe feeding mechanism to operate at 2.25 GHz and 3 GHz. Five different schemes of periodic defects are applied to its ground plane and compared using 3D EM simulation. The one with periodic etched circles under the dual frequency slotsis found to be the best. Hence, a parametric analysis is performed to obtain the optimum values of the antenna physical dimensions. It exhibits superior performance enhancement compared to the same antenna that was designed andoptimized without applying EBG structure. The enhancement in its performance is noticed as higher gain, wider bandwidth, better VSWR and axial ratio, without degrading any other parameter. Measurements are in good agreement with simulations, which verifies the design procedure and strongly recommends the proposed element for telemetry, telecommand and control (TT&C) satellite antenna systems.
https://iceeng.journals.ekb.eg/article_32960_7fe42c2b04d6d6bb46c149d548c57a03.pdf
Dual-Band Antenna
Circular polarization
Electromagnetic Band gap
TT&C Satellite antenna systems
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
5
10.21608/iceeng.2010.32961
32961
Original Article
New Selective Dual Band Microstrip Patch Antenna for WLAN
Mohamed Abd ElAzeem
1
Hossam Hamza
2
Egyptian Armed Forces.
Egyptian Armed Forces.
A simple dual band coaxial fed microstrip patch antenna has been designed to meet the (IEEE 802.11n) standard (released Oct., 2009) for high speed Wireless Local Area Network (WLAN) to operate at (2.45 and 5.8 GHz). The position of the coaxial fed probe is chosen to provide the required matching for excitation of the dual resonance frequencies. The patch length is chosen to radiate at the lower frequency and with the help of a slot along the patch; the coupling provided resonance tuning for the higher frequency. The patch was designed, simulated, fabricated and measured. There was a very good agreement between the measured and the simulated results.
https://iceeng.journals.ekb.eg/article_32961_bb54debaf0484a7446cf7ab0771dcc55.pdf
Dual Band Microstrip antenna
Coaxial feeding
WLAN
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.32962
32962
Original Article
Stability Improvement of Distribution Networks using Inverter-based Distributed Generators at different penetration levels
M. Solim
1
M. Marei
2
M. Mansour
3
A. Mahmoud
4
Egyptian Armed Forces.
Egyptian Armed Forces.
senior., member, IEEE., Benha High Technology Institute, Benha, Egypt.
member, IEEE., College of Engineering, Cairo University, Cairo, Egypt.
Distributed Generators are rapidly penetrating the traditional Power Distribution Networks, offering a number of technical, environmental and economic benefits. Meanwhile, they have some negative impacts on network stability as they noticeably reduce the overall rotational inertia and then the utility will no longer be an Infinite Bus having constant voltage and frequency. Therefore DG’s have to improve system stability in order to have an efficient and, in the same time, a robust network. In order to optimally utilize DG's, they need to be dispatchable, which is not always an availablefacility. This paper utilizes a multi-function nonlinear inverter-based link for DG systems, Flexible Distribution Generation, to implement several ancillary services and improve system performance depending on their penetration level in the network. The performance of the proposed system is simulated using PSCAD/EMTDC. The results are discussed to demonstrate the potential of the proposed scheme.
https://iceeng.journals.ekb.eg/article_32962_74bcc90e01e8bac578d70333195b800a.pdf
Distributed generation
Frequency control/stability
Micro-grids
Power oscillations
power system dynamics
PSCAD/EMTDC
Voltage regulation/stability
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
7
10.21608/iceeng.2010.32963
32963
Original Article
A Nonlinear Model and Steady State Analysis of A Unified Power Flow Controller
M. Saleh
1
Faculty of Engineering, MSA University, 6-October, Egypt.
The present paper describes the nonlinear model of unified power flow controller (UPFC) for studying the steady state and transient behavior of an electric power circuit equipped with FACTS devices. Detailed 3-dimension simulations are carried out to illustrate the control features of the UPFC and its influence to increase power transfer and improve system stability.
https://iceeng.journals.ekb.eg/article_32963_51a0d4ee75d287788904ecf83b66d03b.pdf
FACTS
STATCOM
SSSC
and UPFC
devices modeling
Power transmission
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
4
10.21608/iceeng.2010.32964
32964
Original Article
Voltage Stability Study of IEEE 14 Bus System Using MATLAB simulation
Yogesh Pundlik
1
Associate Professor, Kamala Institute of Technology and Science, Singapur, Dist: Karimnagar, Andhra Pradesh.
The paper discusses voltage Stability as a major concern in planning and operations of power systems. It is well known that voltage instability and collapse have led to major system failures: with the development of power markets, moreand more electric utilities are facing voltage stability –imposed limits. The problem of voltage stability may be explained as inability of the power system itself. It is understood as a reactive power problem and is also a dynamic phenomenon. The objective of this work is to developed a fast and simple method which can be applied in the power system online, to estimate the voltage stability margin of the power system.
https://iceeng.journals.ekb.eg/article_32964_8c08bf63ef1efc516d2540b3f03e7ca4.pdf
Voltage stability- power system- planning –operation P-Q and P-V Curves- MATLAB- IEEE-14 Bus System- voltage
stability indicator
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
12
10.21608/iceeng.2010.32965
32965
Original Article
A Strategy to Improve Voltage Instability in The 30-Bus IEEE Power System Model using Remedial Actions
S. El-Debieky
1
A. Hamza
2
N. Abdel-Gawad
3
S. Mahmoud
4
H. Hassanin
5
Ain Shams university.
College of Engineering in Shoubra, Benha University, Cairo, Egypt.
College of Engineering in Shoubra, Benha University, Cairo, Egypt.
Egyptian Electricity Holding Company.
Ministry of Electricity and Energy.
The analysis of a large interconnection power system, under the severe disturbances such as those that can lead to a voltage collapse (VC), is necessary to develop the performance of the available protection schemes and to avoid critical conditions that can lead to instability or system blackout. In this paper, a Strategy to improve voltage instability in the 30-Bus IEEE power system model as an example to large interconnected power systems. One case study of a large unit tripping is tested and voltage instability was studied. Also, the required remedial actions are considered.
https://iceeng.journals.ekb.eg/article_32965_dec802ac5feb250f114f05fab62a6b92.pdf
Voltage Instability
Voltage Collapse (VC)
Remedial Actions
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
10
10.21608/iceeng.2010.32966
32966
Original Article
Soft Starting of Three-Phase Induction Motor Using DSP Auto Coding and Power System Controllers (Digital Motor Controllers)
M. Eldery
1
Samy. Ghania
2
A. Saber
3
Senior system Honeywell Aerospace, Canada.
Shoubra Faculty Of Eng. Benha University, Cairo, Egypt.
Researcher at Electronics Research Institute, Cairo, Egypt.
Since the rapid development of the digital controller, such as Micro-Controllers (MC) and Digital Signal Processor (DSP), to replace the traditional analogue controller, their applications in the power system control are growing in fast pace. Several algorithms have been developed to achieve the best utilization of the digital controller. This is considered a major barrier facing the power engineers. Auto coding is a term used to express the translation of the high level model, which power engineer are familiar with, to a low level assembly code targeting a specific controller. In this paper, the authors present their experience dealing with the auto coding tools from MatLab targeting Digital Signal Processor (C2000 Family). Moreover, this paper walks through the steps and the most famous mistakes for converting the power system MatLab model to an assembly code for the DSP-C2000. The paper is using an induction motor controller as an example along with the practical laboratory results.
https://iceeng.journals.ekb.eg/article_32966_9901947089c5f5fe13f9475a941e8646.pdf
Voltage/ Frequency Control
DSP
Power Inverter
Soft Starting
Autocoding
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
11
10.21608/iceeng.2010.32967
32967
Original Article
Monocular Object Tracking based on Corner detection
Ahmed Ali
1
Gouda salama
2
M. Hamed
3
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
This paper addresses corner based method for allocating the position of an object in video frames. Corners distributed inside a predefined search area used to represent the object shape .It is used to estimate the most probable target position in the next frame. Tracking is done through matching process between corner's information in current frame (candidate corner) and that in the previous frame (reference corner). Finally, an updating step for the reference corners distribution model and the predefined search area position is carried out for the next frame. The proposed technique has shown a very good performance when applied to real captured videos frames. The calculated errors in the locations of the moving object were never more than 8 pixels.
https://iceeng.journals.ekb.eg/article_32967_d7fe0244c7e724a470ca35fc958819a3.pdf
Object detection
Corner-based tracking
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
9
10.21608/iceeng.2010.32968
32968
Original Article
Detection of Moving Vehicles Using Multiple-Level Decomposition Wavelet Analysis
Hosny Abd-Elmonem
1
Ahmed Omar
2
Ahmed Ali
3
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
This paper introduces an enhanced set of feature extraction for Automatic ground vehicle recognition (AGR), AGR features recognition is a required task in security and surveillance systems. Vehicle direction may be used in tracking object for traffic control or other applications. Multi-acoustic sensor and single seismic sensor were used for feature extraction and direction tracking. Wavelet analysis was used as a powerful tool for acoustic feature extraction. Sixth level wavelet analysis has enabled the extraction of enough features leading to high precision tracking and recognition.
https://iceeng.journals.ekb.eg/article_32968_9dbfd164733ba18bdcf8ded9a22c40a5.pdf
voice recognition
Detection of moving vehicles
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
12
10.21608/iceeng.2010.32970
32970
Original Article
Performance Evaluation of the Detection Mechanisms for Malicious Transactions in DBMS
Wasim Shalish
1
G. Salama
2
H. Mohamed
3
Syrian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
The main goal of database security mechanisms is to protect the data stored in the database from unauthorized accesses or malicious actions in general. In fact, several mechanisms needed to detect unauthorized database transactions executed by authorized or unauthorized users have been proposed and/or consolidated in the database arena. Most of these mechanisms can be implemented either externally as an autonomous subsystems separated from the DBMS (sharing the same machine or, preferably, in a dedicated machine), or implemented internally to the DBMS using database triggers. However, in the case of database triggers the performance degradation is expected to be quite high as the execution of database triggers is normally a high resource consuming task. In this paper, a proposed mechanism forthe detection of unauthorized transactions in DBMS is implemented. The proposed mechanism implemented internally to the DBMS using database procedures by compiling them into native code residing in shared libraries. This paper presents a practical example of three mechanisms for detection of malicious transactions in DBMS, the proposed mechanism, internal database triggers, and external procedure. Finally, this paper investigates the performance of the three implemented malicious transactions detection mechanisms in the Oracle 10g DBMS and evaluates the mechanisms using a telephone database. The experimental results showed that the external procedure and the native mechanisms provide the greatest performance gains for computation-intensive procedural operations compared with the database triggers.
https://iceeng.journals.ekb.eg/article_32970_49318eefd9059f81dd7f940e61ed29bc.pdf
DBMS
Intrusion Detection System
Malicious Transactions
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
9
10.21608/iceeng.2010.32971
32971
Original Article
Data Hiding in the Predictive frames of MPEG Motion Vectors
Ismail Abdel Ghaffar
1
Hussien Aly
2
Tarek Khafagy
3
Alaa Rohiem
4
MTC Member.
MTC Member.
MTC Ph.D Student.
MTC Member.
Compressed video is a target for researchers looking for a secured, robust, reliable, and reversible data hiding techniques. This paper proposes a novel method for hiding data, which is capable of embedding the bits in each candidate MPEG motion vectors. In this method a displacement lookup table is used to embed the secret message (watermarks,signatures, etc.,). The secret message is organized into a stream of three-bit groups then statistically analyzed with histogram. A three-bit distribution at the encoder side is used to build a lookup table of the displacements to the motion vectors with the design objective of minimizing the displacement changes. The associated macro-block prediction error is calculated to decide which motion vectors should be selected for insertion and extraction of the data. These motion vectors are called candidate motion vectors. The proposed algorithm is tested by embedding the payload (message) at the encoder side in the predictive (P)-frames and successfully extracting it again at the decoder side. The performance is analyzed in terms of peak signal-to-noise ratio (PSNR) and the file size increase of the reconstructed video versus the embedded payload. The results show that the payload of that hidden data is increased compared to other methods using the motion vectors for data hiding. The results for peak signal to noise ratio (PSNR) against the payload give that there is a slight degradation (-2dB) compared to other methods but this degradation is compensated by the decoder.
https://iceeng.journals.ekb.eg/article_32971_bcb5237061b87b2f1f0f3d7496bf7f95.pdf
Data hiding
Watermarking
Motion vectors
Compressed Video
MPEG Data Hiding
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
17
10.21608/iceeng.2010.32972
32972
Original Article
Applications of Signal Processing in Genomic Research
Ashraf Aziz
1
Egyptian Armed Forces.
There is an enormous amount of genomic data available for researcher in public databases. The genomic has the form of deoxyribonucleic acid (DNA) and plays a vital role in the function of every living cell. Hence, there is an essential need to understand the organization and the functionality of the DNA regions. Determining the key regions in DNA data is a very important problem for biologists. In order to address this important issue, various methods have been proposed from diverse disciplines such as biology, chemistry, physics, computer and electrical engineering. Signal processing theory is becoming increasingly very important in the study of genes in the field of bioinformatics. As the genomic information is digital, it can be represented in the form of numerical sequences that can be analyzed so that the results obtained are beneficial to humankind. In this paper, a quick review of molecular biology, DNA structure, followed by a brief review of signal processing methods for identifying protein-coding regions are presented.
https://iceeng.journals.ekb.eg/article_32972_158a27ae5a7f4da89b31fb394eb0a99f.pdf
DNA
protein-coding regions
genomic signal processing
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.32975
32975
Original Article
Iterative Beamforming Technique for Interference Cancellation
Khairy El Barbary
1
Hossam El-Din Abou Bakr
2
Basem Mansour
3
Haytham Yousif
4
Prof. Dr., Egyptian Armed Forces.
Egyptian Armed Forces.Dr.
Eng., Syrian Armed Forces.
Eng., Sudanese Armed Forces.
Adaptive beamforming is used in many applications such as radar, sonar and wireless communications for separating desired signals from other unwanted signals. Beamforming is essentially applied to direct the pattern of the receiving antenna system towards the desired direction as well as to attenuate the received signals from unwanted directions. The process of adaptive beamforming is performed in two steps. The first step is assigned to estimate the direction of arrival of signals at the field of view of the receiving system. The second step is assigned to nullify the beam pattern in the directions of unwanted signals. To improve the performance of the adaptive beamforming, the number of array elements as well as the number of snapshots should be increased. However, this increase in both numbers of elements and snapshots leads to increase in the cost and the processing time. In this paper, a proposed iterative adaptive digital beamforming technique is presented to improve the array capability of interference cancellation while reducing the processing time. The proposed technique is based on the Jacobi theorem for iterative solution of a system of linear equation to determine the optimum weight vector at the array output. The proposed technique is compared with the optimal Minimum Variance Distortionless Response (MVDR) beamformer technique. Computer simulation is applied to verify the mathematical analysis that presented in the paper. The paper results show that the proposed technique can provide effective Co-Channel Interference (CCI) suppression better than MVDR, while increasing the strength of the desired signal.
https://iceeng.journals.ekb.eg/article_32975_0b78dc42bec021f891e77b071d36fe3e.pdf
Adaptive beamforming
Minimum Variance Distortionless Response (MVDR)
Co- Channel Interference (CCI)
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
11
10.21608/iceeng.2010.32980
32980
Performance evaluation of detection of Direct Sequence Spread Spectrum signals over a flat fading channel
Khairy El Barbary
1
Hossam El-Din Abou Bakr
2
Ahmed El-Mahdy
3
Hazem Kamal
4
Prof. Dr., Egyptian Armed Forces.
Dr., Egyptian Armed Forces.
Assist.Prof. Dr., German University in Cairo.
Eng., Egyptian Armed Forces.
This paper characterizes the performance of direct sequence spread spectrum (DS-SS) signals from the detection probability point of view. The detection probability of DSSS signals is estimated using wideband radiometer receiver over flat fading channel. Simulations are performed to evaluate detection probability of DS-SS signals over flat fading channel for various time bandwidth product values. The results are compared with the detection probability of DS-SS signals over AWGN channel. The results show that the fading parameter degrades the detection probability of DS-SS signals. The performance of DS will be discussed later in the presence of imperfect channel estimation errors.
https://iceeng.journals.ekb.eg/article_32980_ff95bd374f9c7a2c18baa6bb4629aaa3.pdf
detection
Spread Spectrum
radiometer
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
11
10.21608/iceeng.2010.32981
32981
Original Article
Parameter Estimation of Composite Continuous Wave Signals in the Presence of Non-Gaussian noise
Ahmed El-Bakly
1
Abd Elmonem Fouda
2
Ezz. Eldin Abdelkawy
3
Arab Academy for Science & Navy.
Modern Academy.
Military Technical College.
An algorithm for estimation of the amplitudes and phases of composite Continuous Wave (CW) signals is considered. The signals are contaminated with non-Gaussian noise. The considered noise model is the most commonly exist in communication applications. The developed algorithm for estimating the amplitudes and phases of composite CW signals is based on the Expectation Maximization (EM) algorithm. The most feature of the developed algorithm is that it reduces the complicated multiparameters optimization required when using the ML approach. The complexity of the algorithm is essentially unaffected by increasing the number of composite signals. Simulation experiment is performed to illustrate the performance of the developed algorithm.
https://iceeng.journals.ekb.eg/article_32981_480620efdae9ad1bf3a2bd12c277e569.pdf
spectral analysis
Expectation Maximization
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
16
10.21608/iceeng.2010.32984
32984
Original Article
Performance Analysis of Pseudo-Random Radars Identification Using Hidden Markov Model
Hossam Eldin Hassan
1
Egyptian Armed Forces.
Nowadays, radar signals are automatically adjusted by computer software to maximize radar performance. These signals are no longer stable and different pulse repetition interval (PRI) values may be assigned for each radar. Therefore, new,sophisticated (Electronic Surveillance), (Electronic Alert), and (Electronic Intelligence) signal processing algorithms are needed. This is the motivating factor behind the research on using HMM, for Radar System Identification (RSI). This paper, investigates the HMM recognition performance for identifying a pseudorandom PRI radar that randomly selects its PRI value from a number of fixed values. When pseudo-random sequences are considered, it becomes much more difficult tofind an optimal HMM parameters that describe the dynamic behavior of the pseudorandom PRI radar. It will be shown that sub-optimal HMM parameters can still provide good recognition performance. Artificial pseudo-random PRI radar pulses are used to show that applying HMMs can provide adequate signal identification that is far superior to conventional cross-correlation techniques. The simulation results show that, it is necessary to retrain the HMM with an error-corrupted version of the original training sequence to improve the model's robustness.
https://iceeng.journals.ekb.eg/article_32984_40cafcd9b777f2beed7c6a762d571363.pdf
Hidden Markov Model (HMM)
Radar System Identification (RSI)
Pulse Repetition Interval (PRI)
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
11
10.21608/iceeng.2010.32985
32985
Original Article
Design & Implementation of a Low Cost Intelligent Arm based on GA
Meghamala Dutta
1
Sourav Dutta
2
Dept. of Bio-Medical Engineering, JIS College of Engineering, Kalyani. INDIA.
NetCracker Technology Corp., Waltham, USA.
Prosthetic limbs can be controlled directly by the brain, yet are not intelligent enough to perform the functions demanded of them. The main design of the electromechanical parts has evolved over a period of time, but the controllers are yet to be suitably advanced to adapt to the different amputees. Over the period of time many researchers have achieved this by various innovative techniques. With the widespread use of artificial intelligence [especially Genetic Algorithm] and its implementation cost reducing over the years, our goal was primarily to 1) design the mathematical model based on Genetic Algorithm for the intelligent arm, and 2) develop a low cost implementation of the model.
https://iceeng.journals.ekb.eg/article_32985_40adbb6421b4d75a0ac125f063831b3d.pdf
Artificial Limbs
Genetic Algorithms
Prosthetics
ANN
Biomedical Signal Detection
Myoelectric Signals
Electro-mechanical Controllers
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
10
10.21608/iceeng.2010.32987
32987
Original Article
Robust registration of 3D point clouds using GA with adaptable boundary constraints
Mariano R.
1
Li Xiaoxing
2
Beijing University of Aeronautics and Astronautics, Beijing, China.
Beijing University of Aeronautics and Astronautics, Beijing, China.
Registration of 3D point clouds is an important task for many different applications today, like reverse engineering, medical imaging, remote sensing, robotics and automation in general. In this paper we explore a new algorithm for rough registration by using the genetic algorithm (GA) which has showed acceptable results in a reasonable amount of computational time. The algorithm is based on the Median Squared Error (MSE) as the fitness function for the GA, and a threshold that defines the maximum distance between corresponding pair of points to be considered inliers. One of the contributions in this paper is a new scheme for adaptable boundary constrains in the algorithm, which makes the global minimum detection faster than the traditional GAs implementations. Another contribution is the separation of the chromosome parameter, i.e. for the first steps of the algorithm we have separated the chromosome encoding into two groups; three genes representing the translation vector (Tx, Ty and Tz) and three genes representing the rotation matrices (Rx, Ry and Rz). Finally, experimental results are presented and discussed using this algorithm.
https://iceeng.journals.ekb.eg/article_32987_b41ff93a8617d4ca04761e8d90e4d1f0.pdf
Registration
point clouds
reverse engineering
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.32990
32990
Original Article
Robust Flight Control System Design Using H∞ Loop-Shaping and Recessive Trait Crossover Genetic Algorithm
A. El-Mahallawy
1
A. Madkour
2
A. Youssef
3
H. Yousef
4
M. El-Singaby
5
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
College of Engineering, Alexandria University.
College of Engineering & Technology, Alexandria.
A proposed approach to robust controller design is introduced. This approach combines the Recessive Trait Crossover Genetic Algorithm with the loop shaping design procedure using H∞ synthesis. The requirements, design and simulation of a flight control system for precision tracking task are considered. The proposed method is applied to design a control system for the F-16 fighter aircraft model. The flight simulations reveal that the desired performance objectives are achieved and that the controller provides acceptable performance in spite of modeling errors and plant parameter variations.
https://iceeng.journals.ekb.eg/article_32990_1b0258aa8c0d47d5bba8e8be517a39a6.pdf
Recessive Trait Crossover Genetic Algorithm
H∞ Loop-Shaping
Flight simulations
Control augmentation system
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
8
10.21608/iceeng.2010.32992
32992
Original Article
Convex Combinations of Stable Matrices
Nabil Rousan
1
Electrical Enigneering Dept. Mutah University.
https://iceeng.journals.ekb.eg/article_32992_4f5298ec589c2f5af8e1c8d85fd45d94.pdf
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.32993
32993
Original Article
Stability and Control Augmentation Systems for an Aerosonde UAV
K. Mobariz
1
M. Sayed
2
A. Youssef
3
M. El-Rahman
4
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
Ass. Prof. electrical power Engineering, Ain Shams University.
Unmanned aerial vehicles suffer from inherent instabilities in the pitch axis due to their small size and the lack of pilot feedback. Therefore a flight control system is needed whose primary function consists of artificial stabilization of the aircraft. This system is known as pitch axis stability augmentation system. Control augmentation system is a common part of modern airplane control and is best characterized as a form of tracking control. In this paper, a flight control system is to be designed that augments both stability and control for an unmanned aerial vehicle called Aerosonde. This control system is designed using Linear Quadratic Gaussian technique. The performance of the control system is compared with the performance of a classical PID controller in terms of input tracking and disturbance rejection properties.
https://iceeng.journals.ekb.eg/article_32993_30814229a20db74ddf2db82963bc9a79.pdf
Stability augmentation system (SAS)
control augmentation system (CAS)
linear quadratic Gaussian (LQG)
Unmanned Aerial Vehicle (UAV)
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
8
10.21608/iceeng.2010.32994
32994
Original Article
On-line Control Technique for Missile Autopilot
Magdy Abo-Elela
1
Ayman El-Shabrawy
2
Ibrahim Hassan
3
College of Engineering, Cairo University, Cairo, Egypt.
Egyptian Armed Forces.
Egyptian Armed Forces.
In this paper a new learning strategy is used for on-line tuning the control system of the ballistic missile. The gradient descent method technique is utilized to derive the on-line tuning laws of the robust controller, so that the robust performance of the system can be yielded. As the result of using this method, the old technique “gain schedule” that normally used in ballistic missile is replaced. The simulation result shows a good settling time, less or no overshoot and higher robustness were achieved. Moreover, the new tuning process is successful in the presence of high noise.
https://iceeng.journals.ekb.eg/article_32994_8e5b8c17ce9407f132402388612be610.pdf
PID tuning
Missile control system and Gradient descent
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
10
10.21608/iceeng.2010.32995
32995
Original Article
Enhancing the Performance of the Marine and Tidal Current Converters Using DC-DC Boost Converter
Salah Kamel
1
Emad Ahmed
2
Masahito Shoyama
3
Noriyuki Hayashi
4
Faculty of Engineering, South Valley University, Egypt.
Faculty of Information Science and Electrical Engineering, Kyushu University, Japan.
Faculty of Information Science and Electrical Engineering, Kyushu University, Japan.
Faculty of Information Science and Electrical Engineering, Kyushu University, Japan.
Due to highly demand on the renewable energy sources as a free and a clean power resource, extracting energy from unsteady flow using marine and tidal current turbines has a special focusing nowadays. For their resource characteristic, extracting energy from them needs more simple and robust converter in order to avoid the drawbacks of the mechanical system such as gearbox and makes the marine/tidal current energy more reliable. The required AC-DC-AC conversion system equipped with DC-DC boost converter has been designed. To investigate the efficient performance of that conversion system especially at low current speed, different operating conditions were studied; the system was tested with/without boost converter at different current speeds operation. Moreover, the effect of including boost converter on the total harmonic distortion THD is checked.
https://iceeng.journals.ekb.eg/article_32995_b79cc3873b90aca8c864afd2ca0604ff.pdf
renewable energy
Marine and tidal current converter
DC-DC boost converter
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
6
10.21608/iceeng.2010.32996
32996
Original Article
Harmonic Measurement and Passive Filter Simulation using MATLAB
D Bhonsle
1
R Kelkar
2
research scholar, corresponding author, is with the Department of Electrical Engineering, C. K. Pithawalla College of Engg. & Tech., Nr Malvan Mandir, Dumas Road, Surat, Gujarat.
Dr., Professor with the Department of Electrical Engineering, M. S. University, Baroda, Gujarat.
Abstract--Power quality is becoming a major concern oftoday’s power system engineers. Harmonics play an importantand major roll in deteriorating power quality, called harmonicdistortion. Harmonic distortion is measured in terms of THD(Total Harmonic Distortion). This paper presents harmonicfield measurement in power distribution network. The specificcase study has been conducted at C K Pithawalla college ofEngineering and Technology, Surat, Gujarat. It includes nonlinearloads such as-personal computer, LCD, laptop, etc.Harmonic measurement was conducted for individual loads.The selected distribution network is simulated using MATLABsoftware. Simulation and design of passive filter is presented inMETLAB for harmonic mitigation. Results of the same areanalyzed taking in to account IEEE standards limits forharmonic distortion.
https://iceeng.journals.ekb.eg/article_32996_a41d05ebce8a12574f0938d25f28891c.pdf
Power Quality
Harmonics
Non-linear loads
Passive Filter
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
5
10.21608/iceeng.2010.32997
32997
Original Article
Design and Simulation of Single Phase Shunt Active Filter using MATLAB
D Bhonsle
1
R Kelkar
2
research scholar, corresponding author, is with the Department of Electrical Enginering, C. K. Pithawalla College of Engg. & Tech., Nr Malvan Mandir, Dumas Road, Surat, Gujarat.
Dr., Professor with the Department of Electrical Engg., M. S. University of Baroda, Vadodara, Gujarat.
Abstract-- Power Quality issues are becoming a major concern oftoday’s power system engineers. Harmonics play significant rollin deteriorating power quality, called harmonic distortion.Harmonic distortion in electric distribution system is increasinglygrowing due to the widespread use of nonlinear loads. Largeconsiderations of these loads have the potential to raise harmonicvoltage and currents in an electrical distribution system tounacceptable high levels that can adversely affect the system.IEEE standards have defined limits for harmonic voltages andharmonic currents. Active power filters have been considered apotential candidate to bring these harmonic distortions within theIEEE limits. This paper deals with an active power filter (APF)based on simple control. A voltage source inverter with pulsewidth modulation (PWM) is employed to form the APF. A dioderectifier feeding capacitive-resistive load is considered asnonlinear load on ac mains for the elimination of harmonics bythe proposed APF. MATLAB model of the scheme is simulatedand obtained results are studied.
https://iceeng.journals.ekb.eg/article_32997_eb39a4df617b38181f3122f956321440.pdf
Power Quality
THD
Non-linear Load
PWM
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
18
10.21608/iceeng.2010.32998
32998
Original Article
A Performance Measurement Device for Synchronous Machines Stability
Mohammed Heikal
1
Yuan Haiwen
2
Waheed Sabry
3
School of Automation Science and Electrical Engineering, Beihang University, Beijing, China.
School of Automation Science and Electrical Engineering, Beihang University, Beijing, China.
School of Automation Science and Electrical Engineering, Beihang University, Beijing, China.
AbstractA device for measurement of power angle, rotor speed and terminal voltage of asynchronous generator has been designed and realized. The device is supplying a signalproportional to the phase angle between the terminal voltage and generated e. m .f. phases of thesynchronous machine. A second signal proportional to the rotor speed is also generated. Theseoutput signals can be used for both measurement and control purposes. The device underconsideration can also be used in conjunction with digital converter (A/D) to perform on – linecomputation and control.The design and realization of the device depend on high speed digital and linear integratedcircuits. The time delays introduced by the device components are negligible compared to themachine time constant, therefore the device is most suitable for applications in both transient anddynamic conditions in synchronous machines.The device is capable of monitoring the variations in the power angle and the rotor speedfor both measuring and control purposes. Further, this device can be used as a part of a digitalcontrol system to provide stabilizing signals to digital automatic voltage regulator of synchronousmachines. The test and calibration results obtained show the capability of the device to monitor thepower angle and rotor speed in both steady state and transient conditions.
https://iceeng.journals.ekb.eg/article_32998_b6efdd7decaac2619d6e9e8278943cad.pdf
Performance of synchronous machines
Power electronics
Phasor measurement unit
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
15
10.21608/iceeng.2010.33004
33004
Original Article
Control of BLDC Motor for Satellite Momentum Exchange
Ibrahim Safwat
1
Amgad Elwakeel
2
Abd Elfattah Eliwa
3
A. Abd Elsattar
4
Egyptian Armed Force.
Egyptian Armed Force.
Egyptian Armed Force.
Prof. Dr., Ain Shams University.
Abstract:The reaction wheel is a small fraction of the spacecraft total mass. It permits veryprecise changes in spacecraft attitude. A novel model of a single-axis position control on asatellite is designed using Brushless DC (BLDC) motor with a resolver to exchange themomentum of the satellite as a reaction wheel. The technique of attitude control is based onconsidering the moment of inertia of the satellite as a part of the moment of inertia ofBLDC motor, so the control on a satellite becomes the control of a Brushless DC motor.Two kinds of controllers are used (PID) controller and (FLC). The performance of bothcontrollers is evaluated to explain the main characteristics of each one.
https://iceeng.journals.ekb.eg/article_33004_69b080ac3d49190c4cd9aeeb030b902b.pdf
Attitude control of satellite
Mathematical model of Brushless DC Motor (BLDC)
Proportional Integrator Differentiative (PID) controller
Fuzzy logic controller (FLC)
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.33006
33006
Original Article
Assertion based HDL-models testing for SoC components
Vladimir Hahanov
1
Eugenia Litvinova
2
Wajeb Gharibi
3
Olesya Guz
4
Ngene Umerah
5
Tiecoura Yves
6
Kharkov National University of Radioelectronics, Kharkov, Ukraine.
Kharkov National University of Radioelectronics, Kharkov, Ukraine.
Jazan University, Kingdom of Saudi Arabia.
Donetsk Academy of Road Transport, Donetsk, Ukraine.
Kharkov National University of Radioelectronics, Kharkov, Ukraine.
Kharkov National University of Radioelectronics, Kharkov, Ukraine.
Abstract:The testing and verification technology for system HDL models, focused to thesignificant improvement of the quality of design components for digital systems onchips and reduction the development time (time-to-market) by using the simulationenvironment, testable analysis of the logical structure HDL-program and the optimalplacement of assertion engine is proposed.
https://iceeng.journals.ekb.eg/article_33006_98088a6b57b13e06e75790492adbb352.pdf
Testing
verification
HDL-model
assertion engine
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.33007
33007
Original Article
Towards Implementing Agent Based Correlation Model For Real-Time Intrusion Detection Alerts
Ismail Abdel Ghafar
1
Ayman Taha
2
Ayman Bahaa Eldin
3
Hani Mahdi
4
Egyptian Armed Forces.
Egyptian Armed Forces.
Computer and Systems Engineering Department, College of Engineering, Ain Shams University, Abasia, Cairo, Egypt.
Computer and Systems Engineering Department, College of Engineering, Ain Shams University, Abasia, Cairo, Egypt.
Abstract:Alert correlation is a promising technique in intrusion detection. It analyzes the alertsfrom one or more intrusion detection system and provides a compact summarizedreport and high-level view of attempted intrusions which highly improves securityeffectiveness. Correlation component is a procedure which aggregates alertsaccording to certain criteria. The aggregated alerts could have common features orrepresent steps of pre-defined scenario attacks. Correlation approaches composed ofa single component or a comprehensive set of components. The effectiveness of acomponent depends heavily on the nature of the real alerts or the dataset analyzed.The order of correlation components affects the correlation process performance.Moreover not all components should be used for different dataset. This paperpresents implementation of an Agent Based Correlation Model for real-time intrusiondetection alerts. Learning agent learns the nature of alerts within a network thenguides the whole correlation process and components in such a suitable way of whichcomponents could be used and in which order. The model improves the performanceof correlation process by selecting the proper components to be used. The simulationresults showed that ABCM model assures minimum alerts to be processed on eachcomponent depending on the dataset and minimum time for correlation process.
https://iceeng.journals.ekb.eg/article_33007_5627c552e0337ed1e1edceba7c172379.pdf
Alert Correlation
Intrusion Detection
Learning Agent
Agent-Based Systems
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
12
10.21608/iceeng.2010.33009
33009
Original Article
The joint impact of mobility models, percentage of transmitting/receiving nodes, and nodes density in the scenario on MANET routing protocols
Yahya Mohasseb
1
Hussein Aly
2
Housam Soleman
3
Ali El-Moghazy
4
Egyptian Armed Forces.
Egyptian Armed Forces.
Syrian Armed Forces.
Egyptian Armed Forces.
Abstract:A Mobile Ad-hoc network (MANET) is a multi-hop wireless network where all nodes cooperatively maintain network connectivity without a centralized infrastructure, and nodes change their positions dynamically. Most studies in MANETs are focused on scenarios with special characteristics. These are: Random waypoint mobility model, 40% transmitting/receiving nodes, and high density of mobile nodes in the scenario area. Our framework aims to evaluate the impact of mobility models, network density, and different percentages of transmitting/receiving nodes on the performance of MANET routing protocols. In this paper a study 27 different scenarios which aim to study the joint effect of different densities of mobile nodes in the scenario area; Three different mobility models; as well as different percentages of transmitting/receiving nodes. Each scenario is evaluated for both the location aided routing (LAR) and ad-hoc on demand distance vector (AODV) routing protocols. Performance evaluation metrics included packet delivery ratio, overhead, and the average end-to-end delay. These metrics were evaluated for a speed of the mobile nodes in the range from 1 to 40 meters/sec. We analyzed the results and compiled a catalogue for MANETS that can be used to deploy the best suitable routing protocol for each scenario of choice.
https://iceeng.journals.ekb.eg/article_33009_47ef6c06c825a590aa5151bec6fd3961.pdf
Mobile ad hoc network
mobility
Routing protocols
density
percentage
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
15
10.21608/iceeng.2010.33011
33011
Original Article
Peak to Average Power Ratio Reduction in Single Carrier OFDMA Systems
Mohamed Salah
msalah61082@gmail.com
1
Gamal Abdel-Fadeel
2
Zaki Nossair
3
Teach. Assist., MTI University.
Prof. Dr., Helwan University.
Associate Prof. Dr., Helwan University.
Abstract:Single carrier frequency division multiple access (SC-FDMA) which utilizes singlecarrier modulation at the transmitter and frequency domain equalization at the receiveris a technique that has similar performance and essentially the same overall structure asthose of an OFDMA system. One prominent advantage over OFDMA is that the SCFDMAsignal has lower peak-to-average power ratio ( PAPR ). SC-FDMA has drawngreat attention as an attractive alternative to OFDMA, especially in the uplinkcommunications where lower PAPR greatly benefits the mobile terminal in terms of thetransmit power efficiency. SC-FDMA is currently a working assumption for the uplinkmultiple access scheme in 3GPP Long Term Evolution (LTE). To achieve low PAPR , anovel scheme, SC-OFDMA with super frame using intermediate mapping (SF-IFDMA),is proposed in this paper. In our proposed scheme, B frames with N subcarriers will becombined into one super frame, then SC-OFDM technique is applied to reduce the PAPRof the super frame, the super frame with lowered PAPR will finally be dividedinto B OFDM frames for the transmission. The combining and dividing process isequivalent to the concatenation process. The proposed scheme requires no sideinformation and can significantly reduce PAPR while maintaining small number ofsubcarriers.
https://iceeng.journals.ekb.eg/article_33011_4b9be9f6e805ee9bcfb7a0c83b08105f.pdf
Single carrier OFDMA with intermediate mapping (IFDMA)
IFDMA with super frame (SF-IFDMA)
peak to average power ratio ( PAPR )
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.33012
33012
Original Article
Application of Blind Adaptive LMS Algorithm for Detection of CDMA Signals in Frequency Selective Fading Channels
Salah. Elagooz
1
Atif. Salama
2
Eissa Eissa
3
Egyptian Armed Forces.
Egyptian Armed Forces.
Libyan Armed Forces.
Abstract:The conventional matched filter (MF) receiver is considered the optimum filter torecover the CDMA signals. One of its problems is that its performance is significantlydegraded due to the channel impairments and the increase of the multiple accessinterference (MAI). Parallel interference cancellation (PIC) is considered a simple yeteffective multi-user detector for direct-sequence code-division multiple-access (DSCDMA)systems. However, its performance may deteriorate due to unreliableinterference cancellation in the early stages. Thus, a partial PIC detector, in which partialcancellation factors (PCFs) are introduced to control the interference cancellation level,it has been developed as a remedy. Recently, an interesting adaptive multistage PICalgorithm was proposed. In this paper, an application of the least mean square (LMS)adaptive algorithm is presented by training the adaptive coefficients blindly to optimizethe values of the PCFs. The performance of the presented receiver is measured in termsof bit error rate (BER) and compared with other receivers over frequency selectivefading channel. It is found that the performance of the adaptive PPIC receiver is betterthan the performance of the other receivers in the frequency selective fading channelespecially in the last stages.
https://iceeng.journals.ekb.eg/article_33012_ef22919926ee3789caa3c29e49d3ea50.pdf
Code division multiple access (CDMA)
adaptive partial parallel interference cancellation (APPIC)
least mean square (LMS)
matched filter (MF)
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
12
10.21608/iceeng.2010.33013
33013
Original Article
Performance of CDMA IRIDIUM Low Earth Orbit Satellite Systems with Coding
SHERIF Gabr
1
PhD. Egyptian Armed Forces.
Abstract:The effect of The effect of block, convolutional and Turbo coding on the probability oferror and the capacity are investigated for CDMA IRIDIUM Low Earth Orbit (LEO)Satellite systems. The model employed assumes a contaminated Gaussian traffic model.The conventional Gaussian distribution can be considered as a special case.
https://iceeng.journals.ekb.eg/article_33013_026e5b50892885b7d92cf8fc9abb0954.pdf
Performance CDMA IRDIUM LEOS
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
10
10.21608/iceeng.2010.33014
33014
Original Article
Improvement of UWB - multiband OFDM BER performance using Barker signaling
Abdel-Rahman Al-Qawasmi
1
Ayman Al-lawama
2
Philadelphia University, Jordan.
Mutah University, Jordan.
Abstract:Orthogonal Frequency Division Multiplexing (OFDM) technology is a key techniquefor achieving the high data rate and spectral efficiency requirements for wirelesscommunication systems of the near future. UWB - Multiband OFDM has an acceptableBER performance. In a multipath noisy channel the bit error is very high. In this Paperwe present the Barker code as a coding technique and solution to increase the BERperformance using the correlation detection. The system performance is increased up to11 dB for autocorrelation detection. The drawbacks of the system are the additionalrequired bandwidth, congestion of the channel and the unexpected error position in theBarker sequence. In order to minimize bandwidth, Time-Frequency-Time using Directand reversed Fourier transforms is used based on acoustic electronic processors.
https://iceeng.journals.ekb.eg/article_33014_38088140b395735c390d6379a55cfcd4.pdf
OFDM
Barker sequence
BER
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
10
10.21608/iceeng.2010.33017
33017
Original Article
Ballistic Transport in Gate-All-Around Nanowire Transistors
Dalia Louis
1
S. Gamal
2
W. Farouk
3
O. Omar
4
Department of Engineering Physics and Mathematics, Faculty of Engineering, Ain Shams University, Cairo, Egypt.
Department of Engineering Physics and Mathematics, Faculty of Engineering, Ain Shams University, Cairo, Egypt.
Department of Engineering Physics and Mathematics, Faculty of Engineering, Ain Shams University, Cairo, Egypt.
Department of Engineering Physics and Mathematics, Faculty of Engineering, Ain Shams University, Cairo, Egypt.
Abstract:In this paper, we propose a 1D numerical quantum simulator for symmetric gate-allaroundnanowire transistors with cylindrical cross section within the effective massapproximation. The simulator is based on a self consistent Schrödinger-Poisson solver,using the finite difference method, in conjunction with a current model assumingballistic behavior for the transistor. The solutions obtained were first verifiedanalytically when it was available. Electron distribution profiles and I-V characteristicsfor transistors with different device parameters are numerically evaluated using theproposed simulator. The effects of quantum confinement and low dimensions on thesecharacteristics are indicated.
https://iceeng.journals.ekb.eg/article_33017_9566a5a94973a10949bd9e741b441dbf.pdf
Gate-All-Around nanowire transistors
self consistent Schrödinger-Poisson solver
finite difference method and Natori’s model
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
10
10.21608/iceeng.2010.33018
33018
Original Article
Low Power Current-Mode Threshold Logic Gate Using Nano-Technology Double-Gate MOSFETs
Aliaa Ahmed
1
Hesham Hamed
2
El-sied Hasaneen
3
Electrical Engineering Depart., Faculty of Engineering.
Electrical Engineering Depart., Faculty of Engineering.
Electrical Engineering Depart., Faculty of Engineering.
Abstract:This paper presents a new low voltage low power current mode threshold logic (CMTL)circuits using DGMOSFETs. The ultimate feature of the double gate transistor is usingthe top and bottom gates in the design of the logic circuits that reduces the number ofthe transistors. The total number of the transistors required to implement the CMTLcircuits and the power dissipation is almost reduced by half by using the DGMOSFET.OR, AND, MAJ logic gates are designed using DGMOSFETs and simulated usingHSPICE. The results for the proposed 45 nm DGMOSFET logic circuits with 1 Vsupply voltage show low power dissipation, smaller power delay product and lessnumber of device.
https://iceeng.journals.ekb.eg/article_33018_312c8e3f3f50403d4993ee591f6baddb.pdf
DGMOSFET Circuits
Low Power Circuits
Threshold Logic Gate
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
6
10.21608/iceeng.2010.33020
33020
Original Article
Designing and Modeling MEMS Filter for Mobiles Transceivers
M. Al_Khusheiny
1
B. Majlis
2
senior member IEEE., Silicon Valley for Nanotechnolgy Riyadh ,Saudi Arabia.
senior member IEEE., Silicon Valley for Nanotechnolgy Riyadh ,Saudi Arabia.
AbstractIn this paper a 71-MHz band-pass IF MEMS filterwith bandwidth of 140 KHz is designed, modeled andsimulated, the supposed MEMS filter is comprised of twosymmetrical Clamped-Clamped μresonators ,coupled bysoft mechanical beam (spring),the centre frequency ofthis filter is the same of the resonance frequency of theconstituent μresonator . The bandwidth is determined bythe physical dimensions of the coupling beam and itslocation between the two μresonator beams. The centerfrequency of the supposed filter is 71 MHz where the Qfactoris 511 and insertion loss of 7.8 dB, this device canbe direct placed in the front-end wireless transceivercircuit.
https://iceeng.journals.ekb.eg/article_33020_3528b7973d086c610ee5d60cd3c41190.pdf
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
12
10.21608/iceeng.2010.33021
33021
Original Article
Hybrid Multiobjective evolutionary Algorithm Based Technique for Economic Emission Load Dispatch Optimization Problem
A. Mousa
1
Kotb Kotb
2
Adel Elmekawy
3
Department of Mathematics, Faculty of Sciences, El- Taif University, El- Taif, KSA.
Department of Mathematics, Faculty of Sciences, El- Taif University, El- Taif, KSA.
Department of Mathematics, Faculty of Sciences, El- Taif University, El- Taif, KSA.
Abstract:In This paper, we present a hybrid approach combining two optimization techniquesfor solving Economic Emission Load Dispatch Optimization Problem EELD. The EELDproblem is formulated as a nonlinear constrained multiobjective optimization problem withboth equality and inequality constraints. Our approach integrates the merits of both geneticalgorithm (GA) and local search (LS). The proposed approach employs the concept of coevolutionand repair algorithm for handling nonlinear constraints. Also, it maintains a finitesizedarchive of non-dominated solutions which gets iteratively updated in the presence of newsolutions based on the concept of -dominance. The use of -dominance also makes thealgorithms practical by allowing a decision maker to control the resolution of the Pareto setapproximation. To improve the solution quality we implement local search (LS) technique asneighborhood search engine where it intends to explore the less-crowded area in the currentarchive to possibly obtain more nondominated solutions.Several optimization runs of the proposed approach are carried out on the standardIEEE 30-bus 6-genrator test system. Simulation results with the proposed approach have beencompared to those reported in the literature. The comparison demonstrates the superiority ofthe proposed approach and confirms its potential to solve the multiobjective EELD problem.
https://iceeng.journals.ekb.eg/article_33021_5256d2a9e2fe2f99fb08281317db7bb6.pdf
Economic emission load dispatch
Evolutionary algorithms
Multiobjective optimization, Local search
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.33023
33023
Original Article
An efficient Genetic algorithm based approach for Reactive Power Dispatch Problem
A. Mousa
1
Islam Eldesoky
2
Egyptian Armed Forces.
Benha High Technology Institute, Benha, Egypt.
Abstract:The problem of reactive power dispatch (RPD) is to allocate reactive power generationso as to minimize the real power transmission losses and keep all voltage within thelimits, while satisfying a number of equality and inequality constraints. This paperpresents a new methodology for solving RPD. This methodology is consists of twophases. The first one employs the genetic algorithm (GA) to obtain a feasible solutionsubject to desired load convergence, while the other phase employs efficient GA toobtain the optimal solution. Also, some major improvements are added to the traditionalgenetic algorithm in order to improve the convergence and to find a better solution.Extensive testing of the proposed algorithm is done on standard IEEE-30 bus systemand the results have been compared to those reported in the literature. The comparisondemonstrates the superiority of the proposed approach and confirms its potential tosolve the RPD problem.
https://iceeng.journals.ekb.eg/article_33023_ae5564d89502cb0326da77878401ed14.pdf
Reactive Power Dispatch Problem
Genetic Algorithm
Nonlinear Programming
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.33025
33025
Original Article
FUZZY ECONOMICAL DISPATCH OF ALL THERMAL POWER SYSTEMS
A. Alkandari
1
J. Madouh
2
Soliman. Soliman
3
M. El-Hawary
4
College of Technological Studies, KWAIT.
College of Technological Studies, KWAIT.
Misr University for Science and Technology , EGYPT.
Dalhousie University, Canada.
Abstract:The basic objective of economic dispatch operation of power systems is “thedistribution of total generation of power in the network between various regional zones;various power stations in respective zones and various units in respective power stationssuch that the cost of power delivered is a minimum.” In the cost of power delivered, thecost of power generation and transmission losses should be considered. This paperpresents a novel technique to solve the economic dispatch problem of all thermal powersystems, where the system states and control variables are considered fuzzy which is thecase in reality. Formulas for the middle and spread of power generation andtransmission losses as well as for fuzzy incremental fuel cost are derived. These fuzzyformulas are solved at different degrees of fuzziness and the results are reported in thetext of the paper.
https://iceeng.journals.ekb.eg/article_33025_65bce66b73d1b84e5ec7ca214ad39152.pdf
Economic dispatch of all power systems
Fuzzy systems
loss formula
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
20
10.21608/iceeng.2010.33027
33027
Original Article
Security constrained optimal dispatch using ant colony optimization algorithm
A. Abou El-Ela
1
A. Kinawy
2
R. El-Sehiemy
3
M. Mouwafi
4
College of Engineering, Minoufiya University, Minoufiya, Egypt.
College of Engineering, Minoufiya University, Minoufiya, Egypt.
College of Engineering, Kafrelsehiekh University, Kafrelsehiekh, Egypt.
College of Engineering, Minoufiya University, Minoufiya, Egypt.
Abstract:This paper proposes a procedure for solving a security constrained optimal dispatch(SCOD) problem under normal and emergency conditions using ant colony optimization(ACO) algorithm. The objective function is to minimize the non-linear generation costfunction by optimizing the settings the real power generation outputs under equality andinequality constraints. The proposed algorithm is applied to 5-bus system, IEEE 14-busand IEEE 30-bus test systems. An application of the proposed algorithm to the westDelta network (WDN) as a part of the Unified Egyptian Network (UEN) considering thevalve-points effects has been demonstrated. Numerical results are compared with thoseobtained using conventional optimization techniques as linear programming (LP), fuzzylinear programming (FLP) technique and genetic algorithm (GA). Simulation resultsshow that the proposed ACO algorithm for the SCOD is more accurate and efficient,especially with increasing the system size.
https://iceeng.journals.ekb.eg/article_33027_39832ecb03d2e640221ccde2ce04ae37.pdf
Optimal dispatch
security
Ant colony optimization algorithm
Valve-points
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.33028
33028
Original Article
Application of model predictive control to profit-based dynamic
A. Elaiw
1
A. Shehata
2
Department of Mathematics, Faculty of Science, Al-Azhar University, Assiut, Egypt.
Department of Mathematics, Faculty of Science, Al-Azhar University, Assiut, Egypt.
Abstract:Recently many countries have gone through deregulation and restructuring of theelectrical power systems with the aim of improving economic efficiency. In thederegulated environment, the generation company (GENCO) finds the optimumschedules of its energy to be sold in the market by running the profit-based dynamiceconomic dispatch (PBDED) problem with its aim to maximize its own profit (revenueminus generation cost). The objective of the PBDED is to maximize the GENCO's ownprofit based on the forecasted energy demand and prices, while satisfying the generators'ramp rate constraints and various other constraints. In [11], model predictive control(MPC) method has been proposed for the periodic implementation of the optimalsolutions for the dynamic economic dispatch (DED) problem with periodic demand. Inthis paper we applied the MPC approach proposed in [11] for the PBDED problemunder the assumption that both the energy price and demand is periodic. Theconvergence and robustness of the MPC algorithms are demonstrated through theapplication of MPC to the PBDED problem with a six-unit system.
https://iceeng.journals.ekb.eg/article_33028_1c74e63c6f6b108d5d3fbf0d266ce18a.pdf
dynamic economic dispatch
Electricity market
model predictive control
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
16
10.21608/iceeng.2010.33034
33034
Original Article
General Structure Design and simulation for Image Processing
Wael Wasfy
1
Hong Zheng
2
Wu Xinghua
3
Li Jun
4
School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, P. R. China.
School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, P. R. China.
School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, P. R. China.
School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, P. R. China.
Abstract:Designing a general structure for fast image processing algorithms to compute theimage intensity for low level 3x3 algorithms having the same parallel calculationmethod but with different kernel is our goal in this paper. Using DSP slice moduleinside the FPGA was an objective task to get the advantage of it as a faster, accurate,higher number of bits in calculations and different calculated equation maneuvercapabilities. Using the remade design scheme can solve many problems such asredesign time consumption, increasing the calculation accuracy by using high numberof bits in calculations more than the regular logic gates, saving FPGA resources isone of the advantages we got by using the general structure design especially if weneed to make more than 3x3 low level algorithm for the same project we can selectwhich algorithm to be calculated at certain time for the same structure as we take anexample in this paper by selecting between Gaussian filter and Sobelx edge detectoras an example. The General structure is capable to be modified to add otheralgorithms which have the same calculation methods. Other designers as mentionedlater an example on this paper uses separate fixed design for each algorithm withmaximum 12bit calculation accuracy.
https://iceeng.journals.ekb.eg/article_33034_343b1049a307cc20ace647faec674627.pdf
Image processing
FPGA
Embedded processor
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
4
10.21608/iceeng.2010.33036
33036
Original Article
FOREGROUND IMAGE EXTRCTION IN THE HSV COLOR SPACE
Jyh-Yeong Chang
1
Jia-Jye Shyu
2
Yi-Cheng Luo
3
Department of Electrical and Control Engineering National Chiao Tung University Hsinchu, Taiwan, ROC.
Department of Electrical and Control Engineering National Chiao Tung University Hsinchu, Taiwan, ROC.
Department of Electrical and Control Engineering National Chiao Tung University Hsinchu, Taiwan, ROC.
ABSTRACTWhen the foreground color is different from thebackground color, the foreground subject can be extractedeasily by the luminance component. When the foregroundcolor is similar to the background color, we cannot extractthe foreground image completely by the luminancecomponent. To solve this, we utilize the HSV color space tobuild the background model, in line with similar spirit of W4segmentation algorithm, which can not only extractforeground image but also be helpful to shadow removal.Since H and S components are not reliable in someconditions, we make use of three criteria to obtain reliableand static hue values. In our experiment, extracting theforeground image in the HSV space improves the accuracyof the extracted foreground image.
https://iceeng.journals.ekb.eg/article_33036_aa44234dc26ac29ff40a13b5a8ad2d19.pdf
Foreground extraction
HSV color space
shadow removal
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
11
10.21608/iceeng.2010.33038
33038
Original Article
Learning-Based Image Super-Resolution with Directional Total Variation
Osama. Omer
1
Department of Electrical Engineering, South Valley University, Aswan.
Abstract:We propose a super-resolution algorithm based on local adaptation. In the proposedalgorithm, the mapping function from the low-resolution images to high-resolutionimage is estimated by adaptation. Moreover, the property of the high-resolution image islearned and incorporated in a regularization-based restoration. The proposedregularization function is used as a general directional total variation with adaptiveweights. The adaptive weights of the directional total variation are estimated based onthe property of the partially reconstructed high-resolution image. The regularizationfunction can be thought as a linear combination of smoothness in different directions.The convexity conditions as well as the convergence conditions are studied for theproposed algorithm.
https://iceeng.journals.ekb.eg/article_33038_1216eb6f00e40563992f5d48ad51ca89.pdf
Super-resolution
image fusion
Restoration
directional total variation
regularization
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
18
10.21608/iceeng.2010.33040
33040
Original Article
Adaptive GPS Tracking Loop Bandwidth Tuning Using Fuzzy Control and Inertial Aiding for Missile Applications
Ahmed Kamel
1
Position, Location and Navigation (PLAN) Group Department of Geomatics Engineering Schulich School of Engineering University of Calgary, Alberta, Canada.
Abstract:Autonomous Navigation Systems (ANS) used in ballistic or cruise missiles are mostly dependent onvery high grade Inertial Navigation System (INS). INS is a dead reckoning system and its navigationsolution always drifts with time from the correct one. Using aiding from other navigation sensors suchas Global Positioning System (GPS) can help getting much better navigation solution and can allowdependence on lower grade INS. Data fusion from both INS and GPS can be done through anExtended Kalman Filter (EKF) either by fusing navigation solution from both sensors in a looselycoupled (LC) technique, or by using Doppler measurements aiding to aid INS or both INS and GPS asin tightly coupled (TC) or tightly coupled with aiding (TCA) technique which is sometimes calledUltra-Tight (UT) integration. GPS usage has limitations in terms of missile high dynamics and signalinterference. The GPS receiver requirements to avoid these problems are conflicting. The Phase LockLoops (PLLs), used to track GPS signals, are required to have a bandwidth as narrow as possible toreduce the impact of signal interference. On the contrary, the loop bandwidth has to be as wide aspossible to accommodate high signal dynamics. To solve this contradiction, a new adaptive GPStracking loop bandwidth tuning algorithm is designed based on integrated INS/GPS through an EKFlinked to a Fuzzy Logic Controller (FLC). This controller senses the vehicle dynamics and thejamming signal conditions and decides the bandwidth value according to those inputs. The AdaptiveFuzzy Ultra Tight (AFUT) GPS/INS integration architecture has been developed and assessed bysimulation using SPIRENT GSS7700 GPS hardware simulator showing that it provides a significantanti-jam and dynamics margins over an INS/GPS with fixed tracking bandwidths in addition to theability of using lower grade and cheaper inertial sensors.
https://iceeng.journals.ekb.eg/article_33040_b1c50b27fdda09d632c7bc06548bdcf6.pdf
GPS
INS
Interference
High dynamics
fuzzy
Kalman filter
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.33042
33042
Original Article
The Use of Biorthogonal Wavelets in Speech Enhancement
Ibrahim Abu-Isbeih
1
Khaled Daqrouq
2
Department of Communication & Electronics Engineering, P. O. Box 1, Philadelphia University (19392), Jordan.
Department of Communication & Electronics Engineering, P. O. Box 1, Philadelphia University (19392), Jordan.
Abstract:This paper presents a new speech enhancement method. This method based on waveletfilters via multistage convolution with Reverse Biorthogonal Wavelets (RBW) in thehigh and low pass band frequency parts of the speech signal. In this method a speechsignal is decomposed into two parts; a high-pass and a low-pass, the noise is thenremoved in each band individually in different stages via wavelet filters. The proposedmethod provides good results where it does not cut the speech information, whichoccurs when utilizing conventional thresholding. The proposed method is tested and theobjective evaluation is used to compare the results with the other used methods. Thenew proposed method shows superiority over Donoho and Johnstone thresholdingmethod and Birge-Massart thresholding strategy method.
https://iceeng.journals.ekb.eg/article_33042_bbf667abad5e022d2aab8998460f05ee.pdf
Wavelet Filters
Speech Enhancement and Biorthogonal Wavelets
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
10
10.21608/iceeng.2010.33043
33043
Original Article
GPS correlated jammer mitigation utilizing MUSIC algorithm
Mohamed Ahmed
1
Ezz. Eldin Abdelkawy
2
Egyptian Armed Forces.
Egyptian Armed Forces.
Abstract:This paper study the behavior of multiple signal classification (MUSIC) algorithm forsuppressing correlated and uncorrelated jammers to GPS receiver. Simulation indicatesthat MUSIC can cancel dramatically high power jammers for both types of signals andperfectly detects their direction of arrivals. It also can suppress both jammers ofdecreased powers up to -120 dBW. At that power level the suppression behaviorregarding to uncorrelated jammer is better than that for correlated one but the algorithmstill detects the correlated and uncorrelated jammers direction of arrivals.
https://iceeng.journals.ekb.eg/article_33043_29e6f16572c4a59f43e9cc9b8da05a80.pdf
Adaptive antenna
music
eigen decomposition
GPS anti-jamming
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
19
10.21608/iceeng.2010.33045
33045
Original Article
Real time IMU Simulator for Integrated Navigation Systems
M. Abozead
1
Y. Elhalwagy
2
G. Elshikh
3
I. Abd-El-Dayem
4
Egyptian Armed Forces.
Egyptian Armed Forces.
SVA, Cairo, Egypt.
Egyptian Armed Forces.
Abstract:Nowadays, the integration of INS with GPS leads to many applications, mainly driven bythe development of low-cost MEMS sensors. Then, it is not surprising that great interest has beengenerated toward low cost inertial sensors in the last decade. Although the basic principles of INS arequite simple, the analysis of its performance and the impact of sensor quality on the overall result arequite complex. In fact, one particular aspect of INS design is the complexity to evaluate newalgorithms and innovative digital signal processing with various sensors and to access theirperformances in function of several kinds of mobile trajectories. Therefore, as most engineeringapplications, the simulation can be considered an important step to implement INS/GPS integrationalgorithms. Therefore, this paper exploits a simulation platform for INS/GPS integrated systems. Itconsists of a trajectory generator, GPS simulator; IMU simulator, and optimal estimation engine.Kalman filter algorithm plays a major role in the proposed platform. It is utilized in loosely coupledarchitecture as the core of optimal estimation engine, inertial sensor error models, and INSmechanizations. It also provides the facility to give a real time test. The proposed platform can beregarded as a cost-effect tool to study the techniques concerning INS/GPS integrated system. It can beused for research as well as education purposes. Several practical issues concerning theimplementation of INS/GPS integration algorithms are discussed to demonstrate the capability ofproposed platform.
https://iceeng.journals.ekb.eg/article_33045_1f16bb0290262d9d3b6804b6c7cd6566.pdf
Real Time Simulators
Inertial Navigation Systems
GPS/INS integration
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
8
10.21608/iceeng.2010.33046
33046
Original Article
Attenuation of Microwaves by Rain Drops
Javaid Qureshi
1
FAST – National University of Computer & Emerging Sciences, Karachi, Pakistan.
Abstract:In connection to microwave interaction with the rain drops, characterizing equations ofmicrowave attenuation by the rain drops were derived. The attenuation constant wasfound to be an increasing function with rain rate when the rain drop is at resonance. Theresults support the previously reported experimental results.
https://iceeng.journals.ekb.eg/article_33046_da3a046ce0ad5e1ca7b4966c9e1d6746.pdf
Attenuation
Rain rate and Resonance frequency
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
9
10.21608/iceeng.2010.33047
33047
Original Article
Electromagnetic Pollution in Buildings and Its Effects on Human Health
Korur Saim
1
Korkmaz Zerrin
2
Sayın Selçuk
3
Faculty of Engineering and Architecture, Selcuk University, Konya, Turkey.
Faculty of Engineering and Architecture, Selcuk University, Konya, Turkey.
Faculty of Engineering and Architecture, Selcuk University, Konya, Turkey.
Abstract:The use of electrical devices has been increasing day by day as a result of growingindustrialisation and improving economic conditions. Thus, all living creatures arebeing influenced to a great degree by electromagnetic pollution. In this study, thenegative effects of electromagnetic fields, whose damages haven’t beencomprehended fully and have been ignored, on human health have been determinedas a problem and some suggestions have been made to prevent electromagneticpollution especially in buildings.
https://iceeng.journals.ekb.eg/article_33047_74998a16abe618e6df2bdc7c137f95a6.pdf
Electromagnetic Field
electromagnetic pollution in buildings
Human health
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
8
10.21608/iceeng.2010.33048
33048
Original Article
A new technique to Improve the dielectric strength of an multi-dielectric insulation system by applying the transverse electric field to main electric field
K. El-Abbas
1
Specialized studies academy , Labour university , El-Mansoura, Egypt.
Abstract:In this study, an attempt is made to improve withstand ability of the multi-dielectric medium by theeffect of an additional electric field in the transverse direction to the main applied electric field. H.V.insulation system is choosed in this study is air-solid insulation system. In this study, two types of gapsare used simultaneously : The first one is the main tested gap and the other is the transverse gap Themain tested gap consists of two parts :Part I is air insulation and part II is solid insulation. The transverse field is applied to part I, i.e.; air gapof the main tested gap. According to the results extracted from this work, the flashover voltage of thedielectric medium II increases as the transverse voltage within the region I increases; whereas theconduction current of the main tested gap decreases as the transverse voltage increases. Moreover, theeffect of transverse voltage increases as gap pressure decreases. Actually, the effect of transversevoltage is much marked in low vacuum gaps than in atmospheric air gaps and compressed air gaps.The improvement in flashover behaviors in the presence of a transverse electrical field illustrate amarked dependence on the following: the item of pressure, the type of transverse applied electric field(a.c or d.c) and the transverse field plane level. However, the improvement does not depend on thespecimen material. Moreover, it is worth mentioning that this improvement in the flashover behaviorsof solid dielectric in the region II is related fundamentally to the process of lowering electric stress inthe region I of the main tested gap.
https://iceeng.journals.ekb.eg/article_33048_0e7bb7e4133b6d9e44e7a28b9e52d13a.pdf
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
7
10.21608/iceeng.2010.33049
33049
Original Article
Compact and Tunable Matching of High Impedance Loads at microwave frequencies using metamaterials
Mahmoud Abdalla
1
Z. Hu
2
A. Sobih
3
Egyptian Armed Forces.
School of Electrical and Electronic Engineering, University of Manchester, Manchester, UK.
Egyptian Armed Forces.
Abstract:This paper presents, the analysis and design performance of a high impedance tunableleft handed coplanar waveguide transformer designed on a ferrite substrate. Theperformance of the proposed transformer is explained analytically. Then numericalelectromagnetic full wave simulations verify its theoretical behavior. The resultsillustrates that the proposed transformer can match a 200 load and a 50 line. Thewhole operating bandwidth can be tuned by changing the applied DC magnetic bias.The center frequency changes from 2.8 GHz to 3.4 GHz. The proposed transformerlength is only 2.4 mm which is approximately 78% reduction in conventional RHtransformer length operates within the same frequency band. Moreover, the proposedtransformer utilizes a horizontally magnetized ferrite substrate yielding a smalldemagnetization field and hence smaller required DC magnetic bias compared tomicrostrip configuration.
https://iceeng.journals.ekb.eg/article_33049_73934afc71fff857355c81201dfccef8.pdf
metamaterials
left handed
microwave circuits
Ferrite
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
9
10.21608/iceeng.2010.33050
33050
Original Article
Mobile Power Supply For Smaller Military Units In Desert Conditions
Zoran Nikolic
1
Vladimir Shiljkut
2
Dusan Nikolic
3
Institute Gosa, Belgrade, Serbia.
Electricity Distribution Company “Elektrodistribucija Beograd”, Belgrade, Serbia.
Hydro Tasmania Consulting, Hobart, Tasmania, Australia.
Abstract:This paper presents one possible solution of combined electrical power supply forsmaller military unit in desert conditions. Proposed mobile power generation set, of1 kW rated power, has: photo-voltaic (PV) solar panels (with ability to be oriented inthe position suitable for electricity production), wind-generator, storage battery andsmall petrol aggregate. Such solution allows long-term supply of necessarycommunication and other equipment, and supply of possible device for water desalting.The paper presents technical characteristics of created model, which consists of 760 WPV-supply, wind-generator of 250 W rated power, storage batteries of capacity 250 Ahat 24 V voltage level, and petrol aggregate of 1000 W rated power. Besides that, someresults of the system’s testing, done in average, continental climate conditions, are alsopresented in the paper. Tests were conducted during several months and shown alsovery high reliability level of system’s components itself. The paper also emphasizes thepossibility of creating such systems with extended rated power range, over 1 kW.Concerning the fact that the purpose and utility value of this independent electricalpower supply system overcome the importance of its investment costs, it can be veryprominent for military applications.
https://iceeng.journals.ekb.eg/article_33050_942ef48661d71d2c1b9b8e518b0f5290.pdf
Small mobile electric power units
off-grid power supply
photo-voltaic
wind-generator
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.33052
33052
Original Article
Geothermal Hot Water and Space Heating System in Egypt.
H. Farghally
1
F. Fahmy
2
M. EL-Sayed
3
Egyptian Armed Forces.
Benha High Technology Institute, Benha, Egypt.
College of Engineering, Cairo University, Cairo, Egypt.
Abstract:Direct utilization of geothermal energy refers to the immediate use of the heat energyrather than to its conversion to electrical energy. The primary forms of direct useinclude heating and cooling. Geothermal energy could be used to supply hot water orcould be used with a special equipment (radiators) to make buildings warmer duringwinter seasons. In general, the geothermal fluid temperatures required for direct heat useare lower than those for economic electric power generation. Most direct useapplications use geothermal fluids in the low-to-moderate temperature range between50o and 150oC. Although Egypt is not characterized by abundant igneous activity, itslocation in the northeastern corner of the African plate suggests that it possessgeothermal resources, especially along its eastern margin. The data indicate that thetemperature of 150 oC may be found in the reservoir in the gulf of Suez and red coastalzone. This work designs a geothermal hot water and space heating system to operate inthree buildings in a remote area in the Eastern Desert (i.e. school, home & emergencyhospital ) and applies to the Umm Huweitat well(sample no. 69 on the Red Seaapproximately 20 km north of the city of Safaga.) as a case study.
https://iceeng.journals.ekb.eg/article_33052_d41d8cd98f00b204e9800998ecf8427e.pdf
Geothermal energy
production well
heat exchanger
radiator
water heater
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
6
10.21608/iceeng.2010.33053
33053
Original Article
Building Knowledgebase for Distributed Resources’ Projects
Mohamed El-Banhawy
1
Power Generation Engineering and Services Company (PGESCo).
Abstract:This paper discuss and propose roadmap to build the knowledgebase required forengineering, procurement, and construction management (EPCM) of Distributedresources (DR) projects. Technologies of Distributed Resources (DR) includingrenewable energy system have been surveyed and summarized in this paper. Roadmapfor the implementation of the DR and Microgrid projects by an EPCM firm wasproposed. It is foreseen that such system could be applied for Housing compounds,factories, and tourism villages.
https://iceeng.journals.ekb.eg/article_33053_9787acdb30e0ad0dd115cb60a6692e36.pdf
Distributed Resource
Distributed generation
microgrid
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
6
10.21608/iceeng.2010.33054
33054
Original Article
Internet Video based remote customer services
Hsin Fu
1
Hsiao Pao
2
C. Tseng
3
Dept. of computer science, National Chiao-Tung University, Hsinchu, Taiwan, ROC.
Dept. of management science, National Chiao-Tung University, Hsinchu, Taiwan, ROC.
Dept. of computer science, National Chiao-Tung University, Hsinchu, Taiwan, ROC.
Abstract:This paper proposes a new remote diagnosis and repair services based on interactivevisual and audio communication over Internet. The proposed service contains threelevels of different remote diagnoses: Level (1): Video and audio interaction betweencustomer and remote service sites; Level (2): Simple signal collection from customer toremote service sites; Level (3): Diagnostic commands and responses between remoteservice and customer sites. The proposed remote diagnose and repair services have beensuccessfully tested and evaluated for its efficiency in technical manpower saving(approximately 85% lesser than traditional service), in service response time saving(approximately 90% lesser than traditional service), in mean time to repair saving(approximately 60% lesser than traditional service), and in service cost saving(approximately 95% cost down). In the near future, we intend to implement automateddiagnosis and repairing suggestion mechanism to further improve the efficiency oftechnical manpower of the proposed remote diagnosis and maintenance platform.
https://iceeng.journals.ekb.eg/article_33054_4a4e89aa6432791ffd83bedb20e3d99f.pdf
Remote service
fault diagnosis
Internet video
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
17
10.21608/iceeng.2010.33055
33055
Original Article
A New Genetic Algorithm for Multiple-Choice Multidimensional Knapsack Problem
A. Heikal
1
M. Rasmy
2
A. Tharwat
3
M. El-Beltagy
4
Egyptian Armed Forces.
Faculty of Computers and Information, Cairo University, Cairo, Egypt.
Faculty of Computers and Information, Cairo University, Cairo, Egypt.
Faculty of Computers and Information, Cairo University, Cairo, Egypt.
Abstract:A New Genetic Algorithm (NGA) for solving the Multiple Choice MultidimensionalKnapsack Problem (MMKP) is presented in this paper. The MMKP can be applied tosolve a wide variety of real life problems i.e., in any area where tasks must be scheduledor budgeted. This paper introduces NGA algorithm that hybridize the solutionconstruction mechanism of GA operators (hybrid selection operator, hybrid cross-overoperator and new hybrid mutation operator) for permutation encoding genetic algorithm.In addition we present a strong initial population is created by the Maximizing Valueper Resources Consumption (MVRC) heuristic algorithm. The experimental resultsshow that the method is very efficient and competitive to solve the MMKP comparedwith the better existing methods
https://iceeng.journals.ekb.eg/article_33055_de1d5e0ab4861cd9824c4a706d3e5a1f.pdf
Genetic Algorithm
MMKP
MVRC
Heuristic Algorithms
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.33056
33056
Original Article
Object based video coding algorithm
A. Sallam
1
M. Shaarawy
2
O. Elmowafy
3
R. Elbordany
4
A. Fahmy
5
Egyptian Armed Forces.
Faculty of Computers & Information, Hallwan University, Egypt.
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
Abstract:This paper introduces a new trend in video compression that based on content basedcoding this solution called Object Based Video Coding (OBVC). A new solution forDiscrete Cosine Transform (DCT) used in video compression is presented. This solutionuses the Artificial Neural Networks (ANNs) and has been implemented and tested withthe OBVC. This paper tries to present a solution based on OBVC and ANN to speed-upthe encoding and decoding processes for video compression and get more compressionratio.
https://iceeng.journals.ekb.eg/article_33056_4c50d5838434c2d13efed59c83d69691.pdf
Neural Networks
DCT
JPEG
M-JPEG
H-261
Image and Video Compression
Object Based Video Coding
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
16
10.21608/iceeng.2010.33240
33240
Original Article
Secured and Enhanced Reliable Ad HocMulticasting Protocol (SERAMP)
A. Ibrahim
1
M. Hashem
2
A. Fahmy
3
F. Amer
4
Eng., Egyptian Armed Forces.
Prof. Dr., Department of Computer Science, Ain shams University, Cairo, Egypt.
Prof. Dr., Department of Computer Science, Cairo University, Cairo, Egypt.
Prof. Dr., Department of Computer Science, Cairo University, Cairo, Egypt.
Abstract:The Mobile Ad Hoc Network (MANET) is characterized by a lack of infrastructure,and by a random and quickly changing network topology; thus the need for a robustdynamic routing protocol that can accommodate such an environment is an importantissue. In this paper we presented an enhanced reliable Ad Hoc multicasting protocolthat satisfies efficiency and robustness which is an essential in relative applications.To enhance the multicasting routing there are two key concepts, the first key conceptis to fair the distribution of the data packets among nodes according to the states ofnodes load, and the second one is to use the most stable route, which remainsconnected for the longest duration of time while preserving the network robustness.Due to the nature of ad hoc networks, secure routing is an important area of researchin developing secured routing protocols. The paper presents a secured routingprotocol for Ad Hoc network to be suitable for relative applications. The proposedprotocol based on two key concepts, the first key concept is to authenticate the routeof the control packets among nodes according to the Message Authentication Code(MAC); the second one is to encrypt the packet by random selection of algorithmfrom a set of algorithms which changes each hop.After words, this paper applies the proposed secured protocol for the previous workand a comparative study has been made between the proposed protocol and theprevious protocol.
https://iceeng.journals.ekb.eg/article_33240_c466c2a5f23b3dce8d580262bed158a4.pdf
Ad Hoc networks
Ad Hoc multicasting
routing security
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.33241
33241
Original Article
Problems of SIP Flooding Attacks Anomaly Detection Algorithms
H. Al-Allouni
1
A. Rohiem
2
M. Hashem
3
A. El-moghazy
4
Syrian Armed Forces.
Egyptian Armed Forces.
Ain Shams University, Cairo, Egypt.
Egyptian Armed Forces.
Abstract:Session Initiation Protocol (SIP) is vulnerable to a wide variety of Denial of Service(DoS) attacks, flooding is the most common, effective and the easiest to generate one.In this paper we present an evaluation study to four well-known anomaly detectionalgorithms, namely: Adaptive Threshold, Cumulative sum (CUSUM), NonParametric Cumulative Sum (NP-CUSUM), and Hellinger Distance (HD). Theevaluation is assisted using simulated traffic dataset. We show that these algorithmssuffer from two main problems, the first is called attack masking and the second isadaptation with attack. In the attack masking, attacker sends preamble followed bythe attack. The preamble changes the tuned parameters of the detection algorithm,these changes mask the attack and keep it undetected. Attacker in the second problemdeviates the detection algorithm parameters gradually, in such a way the attack isconsidered as normal traffic. The paper also shows that NP-CUSUM and HDalgorithms, which utilize the protocol behavior to detect intrusion, suffer from thirdproblem, and they are very simple to con. Attacker simply follows the same protocolbehavior, and its related traffic is considered as normal, and cannot be detected.
https://iceeng.journals.ekb.eg/article_33241_658102e26645c21ebbee35f198f31fc9.pdf
Session initiation protocol
flooding attacks
denial of service
Anomaly detection
Adaptive Threshold
cumulative sum
non parametric cumulative sum
Hellinger distance
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
12
10.21608/iceeng.2010.33243
33243
Original Article
Enhancement Packet Authentication and integrity in SRTP Protocol
Mazen Mohammed
1
Alaa Eldin Rohiem
2
Ali El-moghazy
3
Military technical College, Cairo, Egypt.
Military technical College, Cairo, Egypt.
Military technical College, Cairo, Egypt.
Abstract:The Real-time Transport Protocol (RTP) is a media transport protocol. RTP is primarilydesigned to satisfy of the needs for multimedia transmission [1]. The Secure Real-timeTransport Protocol (SRTP) provides confidentiality, message authentication, and replayprotection for RTP traffic. However, there are risks of weak message authentication inSRTP Protocol [2]. With a weak Message authentication code it is easy for attacker tomodify the SRTP packets. The main purpose of this paper is to propose an alternativescheme to provide a stronger authentication and integrity. The proposed scheme isimplemented using Microsoft open source project for conference. The implementation istested using StsGui NIST Statistical suite and Cryptool software [3] for security andWireshark [4] for performance. The test results show that the proposed modificationenhances the security with minor effect on the quality of service (QoS).
https://iceeng.journals.ekb.eg/article_33243_d6b2155ed6b3a2fd39a0a0d85647dfc5.pdf
Real-time Transport Protocol (RTP)
Secure Real-time Transport Protocol (SRTP)
Authentication and Integrity
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
12
10.21608/iceeng.2010.33244
33244
Original Article
A novel multisensor integration approach for distributed detection systems with data fusion
Ashraf Aziz
1
M. AbdelAzeem
2
A. ElBakly
3
W. Sabry
4
Egyptian Armed Forces.
Egyptian Armed Forces.
The Arab Academy for Science and Technology.
Egyptian Armed Forces.
Abstract:In this paper, we consider a binary distributed detection system in which a system ofmultiple sensors monitors a common volume and provides relevant binary decisionsabout the state of the environment to a data fusion center. The fusion center combinesthe binary decisions of the individual distributed sensors into a final global decision. Wepropose a new hard decision integration method for multiple sensor decision fusionsystems. The proposed hard decision fusion method determines the false alarmprobabilities and the detection probabilities that yield maximum performance. Theperformance of the proposed method is provided in case of Rayleigh distributedobservations and is proved to be simple and efficient.
https://iceeng.journals.ekb.eg/article_33244_02a68c7ffb00f6f96e99e2ffe1f31af9.pdf
Binary integration
distributed detection
decision fusion
multisensor detection
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
21
10.21608/iceeng.2010.33250
33250
Original Article
Computational Techniques for Calculation of Missile Aerodynamic Coefficients
Mandour, F.
1
Mahmoud, K
2
Abdalla, M
3
Egyptian Armed Forces.
Egyptian Armed Forces.
Military Technical Collage.
Abstract:Studying the flow over bodies of revolution is crucial to the design of missiles andobtaining the correct shape which has a large impact on the performance of the missile.Three-dimensional flow simulation over a body of revolution were carried out in orderto obtain flow field parameters for different angles of attack namely -4.09, -2.04, 2.06,4.11, 6.17 and 12.41˚ at Mach number of 0.5 (subsonic) and of -4.34, -2.15, 2.17, 4.37,8.87, and 13.6˚ at Mach number of 1.2 ( transonic flow conditions). The softwareFLUENT with its prepressor GAMBIT were used to model a missile of knowngeometry. The Computational Fluid dynamics results were validated with a prepublishedexperimental data measured by a wind tunnel [1]The validated model was used to examine Magnus effect on the spinning missilewhich improves the effect of the high spinning rate on the side force affecting themissile body.
https://iceeng.journals.ekb.eg/article_33250_5f0042acfc6bc358642ec53942f918c8.pdf
CFD
Aerodynamic
Magnus effect
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.33251
33251
Original Article
Design of Active Stabilization Controller for a Tactical Rifle
Gamal Elnashar
1
Mahmoud Ashry
2
Egyptian Armed Forces.
Egyptian Armed Forces.
Abstract:This paper describes an inertial stabilized rifle where a recurve actuator, constructed frompiezoelectric material, is used to internially stabilize the barrel assembly of a tactical rifle tocompensate for the small user-induced disturbances. This system is an active stabilization systemdesigned to decouple the shooter’s interruption effects from the barrel movement based on controlsystems. Based on the feedback of the targeting error from the sensors, a control system will calculatethe desired displacement and force needed to cancel out the human disturbances that are imparted tothe rifle. The actuators are designed to cancel out jitter disturbances in a frequency range of 0Hz-5HzIt presents research to help protect and increase the defenses of soldiers on ground. While in battlethese soldiers’ defenses and performance suffer due the intense stressors of combat. A differentmethod for mitigating the depredating physiological effects of a soldier's marksmanship due to battlestressors can be achieved through the design and implementation of active stabilization system forsmall arms weapons. Combat stress may be defined as the perception of an imminent threat of seriouspersonal injury or death, or the stress of being tasked with the responsibility to protect another partyfrom imminent and serious injury or death, under conditions where response time is minimal.Physiological effects that result from combat include, but are not limited to, a dramatic increase inheart rate, heavy breathing, muscle tremors, and anxiety.The requirements of this system are discussed and the actuator controller are derived.This research uses pole-placement control techniques to develop control algorithms for simulation. Thelevel of performance for the control algorithm is based on how well measure up to the criteriadeveloped from the rifle.
https://iceeng.journals.ekb.eg/article_33251_d6be7cb1e30a7cc08f0dfcf568e98ba7.pdf
Generic rifle
active stabilize
physiological effects
pole placement
piezoelectric actuators
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.33252
33252
Original Article
Development and Performance Analysis of on-Board Computer Software for Real Time Auto-Pilot Control System
E. Mohamed
1
H. Taha
2
S. Shedeid
3
K. Shehata
4
Abstract: On board computer (OBC) is an essential component of any On-Board ControlSystem that involves several tasks that needs to be executed in precise order and for accurateperiods of time. Most of the real time control systems require instantaneous execution ofcommands either through hardware or software. To ensure that these requirements arefulfilled, it is necessary to measure not only the execution time of individual tasks, but alsoestablish the overall real time performance of the system as well. These measurements maythen be used as a basis for accurate real time scheduling analysis and to identify timingproblems or to spot which code segment needs to be optimized. The most common reasonsfor measuring execution times are to refine, estimates, optimize code, analyze real timeperformance, and to debug timing errors. Oscilloscope is one of the best tools for accuratelymeasuring execution time with nano-second's result, especially when accurate timing iscritical. This method requires extra hardware features, Oscilloscope analysis features, andadditional software code segments. Depending on the real time operating system (RTOS) andhardware, it is possible that code is not executing at the proper rate or during the right periodas specified by the designer. These drawbacks may result due to limitations in the operatingsystem, the application software or the hardware used. This proposal presents hyper threads, aunifying programming model for specifying application threads running within a hybridCPU/FPGA system that is used to control the real time operation of an auto-pilot controlsystem.
https://iceeng.journals.ekb.eg/article_33252_7f4306b36293fc45e542444c3d7e5809.pdf
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.33253
33253
Original Article
Detection of PN sequence using Higher Order Statistics (HOS) Matched Filter Receiver
Ahmed Badawy
1
Ahmed Sadek
2
Dr., Air Defense Command (ADC) Cairo, Egypt.
Dr., Alexandria university, Faculty of Engineering , Alexandria, Egypt.
Abstract:This paper presents a Higher Order Statistic Matched Filter (HOSMF) receiver whichuse in signal detection of PN-sequence in the presence of the Gaussian and nonGaussian noise. We also propose a method for the realization of a correlator to computethe 3rd order cumulant. The PN-sequence is detected via multiple correlation andcumulants, respectively.The detection algorithm is computationally simply and condrary to standard matchedfilter, it is insensitive to shift pn-sequence and does not required knowledge of the noisespectrum for pre whitening. The receiver can be viewed as like hood ratio test betweensampled higher order statics. Simulation illustrated successful performance of thedetection using correlation higher order statics matched filter (HOSMF) than theconventional MF under certain types of noise.
https://iceeng.journals.ekb.eg/article_33253_39c1b316012ac753d9e62ed31ab3517e.pdf
Matched Filter
PN-Sequence and Higher Order Statistics (HOS)
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
11
10.21608/iceeng.2010.33254
33254
Original Article
Joint Demodulation and Detection of Covert Modulated M-sequence
Ahmed Badawy
1
Ahmed Sadek
2
Dr., Egyptian Armed Forces.
Dr., Alexandria University, Faculty of Engineering, Alexandria, Egypt.
Abstract:The paper Present a new receiver for detection of covert M.sequence regardless the chipcode sequences and the type of modulation. A Higher Order Statistics (HOS) based onthe Kurtosis of the received signal is used to classify the type of the modulation, and sodecide the modulator. The Triple Correlations Function (TCF) of M. sequence of thedemodulated which differs from sequence to another according to the feedbackconnection is used to decide the generation function g (x) from the peak position of thisM-sequence. This paper is classified into four sections the first section, we introducesome property of modulation and how the (TCF) of the M.sequence generated.Secondly, the digital modulation classification is classified and tabulated usingtheoretical cumulants Statistics C40, C42. The Triple Correlation function (TCF) ofM.sequence is showed in section three. Computer simulation of determination offeedback polynomial y(x) at section four. Finally, the conclusion is presented in at therest of this paper.
https://iceeng.journals.ekb.eg/article_33254_038b923963a367e979a68a3fb452ea2c.pdf
digital Communication
Higher Order Statistics (HOS) and M-Sequence
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
12
10.21608/iceeng.2010.33256
33256
Original Article
Speckle noise reduction in SAR images using a new morphological filter
Ahmed Saleh
1
Ezz Abdelkawy
2
Tarek Mahmoud
3
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
Abstract:Speckle noise is one of the most critical disturbances that alter the quality of SyntheticAperture Radar (SAR) coherent images. Before using SAR images in automatic targetdetection and recognition, the first step is to reduce the effect of speckle noise. Severaladaptive and non-adaptive filters are widely used for despeckling in SAR images. In thispaper, a novel mathematical morphological filter is proposed to reduce the speckle noisein SAR images. The new filter performance is compared with a number of despecklingfilters with different parameters. For performance measurements, four parameters wereevaluated to test the filter ability to attenuate the speckle noise and keep targetinformation. From experimental results, the new proposed morphological filter givespromising results for significantly suppressing speckle noise and preserving thepotential targets.
https://iceeng.journals.ekb.eg/article_33256_1672dfc72d47f8004a79faae9413c78c.pdf
Despeckling filter
Morphological filter and Synthetic Aperture Radar (SAR)
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
17
10.21608/iceeng.2010.33257
33257
Original Article
An Energy Efficient Routing for Wireless Sensor Networks based on a novel Cluster Head Election
Ashraf. Abo shosha
1
Ragab. Elsagher
2
Abd elwahab
3
Egyptian Armed Forces.
Benha High Technology Institute, Benha, Egypt.
College of Engineering, Cairo University, Cairo, Egypt.
Abstract:Wireless sensor networks (WSNs) consist of a limited capability nodes called sensors.These sensors may be in size of grain of dust in some applications so it has very limitedresources (memory, energy, computational capabilities, transmission range…ect). Mostof the WSN literature focuses on the efficient use of the network resources to increasethe network life time as well as the system robustness. Unlike traditional networks,where the focus is on maximizing channel throughput or minimizing node deploymentand enhancing the quality of service. This paper presents a new cluster head electionalgorithm aims to prolong the stable region of the network as well as the system lifetime by using the network energy efficiently. The presented technique is called theheterogeneity aware LEACH (HALEACH). It was compared to the Direct transmission(DT), the homogeneous LEACH, the heterogeneity unaware LEACH and the Fairprotocol. The results show that HALEACH outperforms the other compared techniques.
https://iceeng.journals.ekb.eg/article_33257_b1e8717ec23b717ae7462abd2ec3cc35.pdf
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
10
10.21608/iceeng.2010.33258
33258
Original Article
Wavelet and Neural Network Method for Speech Enhancement Objective Evaluation
K. Daqrouq
1
M. Alfaouri
2
T. Abu Hilal
3
J. Daqrouq
4
S. El-Hajjar
5
Electronic and Communication department-Philadelphia Univ.-Jordan.
Electronic and Communication department-Philadelphia Univ.-Jordan.
Arab Academy for Banking & Financial Sciences, Computer Information Systems.
IT Department- Gazco Company-Abu Dhabi.
Dhofar University, Foundation Department, Oman.
Abstract:Wavelet Neural Network Evaluation method WNNEM is proposed as a powerful toolfor enhanced speech signal evaluation. This objective evaluation measure utilizes Feedforward back Propagation Neural Network FFBNN to train the free of noise signal, andthen enhanced signal is simulated to the training output results taken for given target.The distance between simulation and the target, over different wavelet sub bands isstudied. Four known speech enhancement method for studying the performance ofWNNEM are utilized. The advantage of this method is the evaluation of different bandpasses of frequency based on wavelet transform by neural network, which is verypowerful classification tool. Several objective measures are used to investigate theWNNEM compatibility. Results proved the validity of the proposed method.
https://iceeng.journals.ekb.eg/article_33258_5c12102ec560e7ddfdf6100e8dc0ef79.pdf
Wavelets
Neural network
objective evaluation and speech enhancement
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
6
10.21608/iceeng.2010.33260
33260
Original Article
Blowfish cryptography implementation by using Microcontroller
Ali Taki El_Deen
1
I Hikal
2
Egyptian Armed Forces.
Information technology Dept, Faculty of Computer Science and Information System, Mansoura University.
Abstract:The main task of paper studied new ciphering and deciphering techniques reportedpreviously. Computer programs are designed in C language to perform thesesalgorithms and to assess their performance. Out of these algorithms, it is found that theBLOWFISH is the more sophisticated one. Therefore, a development for this algorithmis introduced to enhance its operation. This has been carried out by using theMicrocontroller in the decrypting operation to support fast and more accurate operation.From the results of simulation, it is found that the expansion and permutation operationsrequire most of the computing time. Therefore, software was designed and implementedto execute the expansion and permutation operations. A series of experiments wasconnected using the new developed algorithm as applied to different types of data (e.g.text, graphics and geographic maps). In all paper experiment, the encrypted anddecrypted files were exactly the same.
https://iceeng.journals.ekb.eg/article_33260_6e20418cde5f6023343c73c202f87017.pdf
Cryptography
BLOWFISH
Microcontroller
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.33261
33261
Original Article
Implementation of Acquisition Data Recorder for an Aircraft
Alaa Shawky
1
Mohamed Ezzat
2
Ahmed Azouz
3
Ramy El-Ghwas
4
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
Abstract:Capturing and retrieving data from aircraft (A/C) for the sake of flight test recording,maintenance and crash recording or mission recording& analysis are crucial for faultdiagnoses and pilots training. Acquired data from A/C are sorted into two categories;first one is analog/discrete data from analog systems, while the second concerns theMIL-STD 1553 serial data of all its connected remote terminals. UMA2000 is a stateof-art Flight Data Recorder (FDR) was used as a programmable Data AcquisitionSystem for acquiring analog, digital signals and MIL-STD 1553 data acquisitionchannels, as a Bus Monitor to gather information of flight mission from severalsystems on the A/C. This paper introduces a way of interfacing UMA2000 on theaircraft platform, gathering, decompressing, decoding, analyzing and converting datato engineering units for retrieving the mission information about the status of theengine, avionics, mission computers ….etc.
https://iceeng.journals.ekb.eg/article_33261_755d2e18d0a21649f38f5e125f573c6b.pdf
Flight Data Recorders
MIL-STD 1553 data bus
Avionics
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
15
10.21608/iceeng.2010.33262
33262
Original Article
Evaluation Of Local Disparity Estimation For View Interpolation
Ahmed Saeed
1
Hussein Aly
2
Alaa Abdel Reheem
3
Fawzy Ibraheem
4
Egyptian Armed Forces.
Egyptian Armed Forces.
Modern Technical Institute, Cairo, Egypt.
College of Engineering, Cairo University, Cairo, Egypt.
Abstract:In this paper, we discuss the disparity estimation problem which is the most importantchallenge to generate an intermediate image for view synthesis. The main problem inestimating the disparity is to find the correspondence among the input images. Thequality of the synthesized novel view is dependent on the accuracy of disparityestimation. Once we find the exact disparities among the input images, a simple lowcomplexity interpolation is carried out to generate the new view. We offer a view of acomparative study between different state-of-the-art disparity estimation algorithmsshowing the advantages, disadvantages, and the peak signal to noise ratio (PSNR) of thereconstructed view using each one.
https://iceeng.journals.ekb.eg/article_33262_da23d433b24b83b8d37145e49ac92d0e.pdf
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
16
10.21608/iceeng.2010.33264
33264
Original Article
10-Criteria for E-Learning Interface Design: Theoretical Study
Diaa Shollar
1
Maha Hana
2
Said Elgaber
3
Faculty of Computers and Information, Helwan Univesity, Cairo, Egypt.
Faculty of Computers and Information, Helwan Univesity, Cairo, Egypt.
Faculty of Computers and Information, Helwan Univesity, Cairo, Egypt.
Abstract:Recently the number of learning management systems (LMS) in educational institutionsand companies is growing up; researches for evaluating the functionalities of thesesystems have published a lot. This paper addresses the problem of creating e-learninginterface designs that are both effective and usable. It focuses on this challenge byproposing 10-criteria for e-learning interface design (10-CELID). 10-CELID provides aguide for e-learning interface designers to design effective and usable interfaces. 10-CELID are Visual design, Content Quality, Accessibility, Ease of use, Efficiency,Functionality, Understandability, Navigation, Motivation and Satisfaction.
https://iceeng.journals.ekb.eg/article_33264_30289fa35875ca19ee84fa7ce779c010.pdf
Interface design
criteria
E-learning
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
25
10.21608/iceeng.2010.33265
33265
Original Article
Pattern-based Data-Classification Technique
M. Salama
1
A. Hasanen
2
A. Fahmy
3
Egyptian Armed Forces.
Benha High Technology Institute, Benha, Egypt.
College of Engineering, Cairo University, Cairo, Egypt.
Abstract:This paper presents a novel model of a supervised machine learning approach forclassification of a dataset. The model depends on a feature selection (dimensionalityreduction) method that is based on pattern-based subspace clustering technique. Thenthis clustering technique is applied to the dataset to perform the classification of thedata. This approach is a non-statistical technique that supports most of the requirementsthat have been discussed recently like dimensionality reduction using multivariatefeature selection method, threshold independence and handling of missing data. Theapproach tends to handle these requirements altogether which not the case in otherclassification models as discussed in this paper. Another distinguishing point in thismodel is its dependence on the variation of the values of relative features amongdifferent objects. Experimental results on synthetic and real datasets show that approachoutperforms the existing methods in both efficiency and effectiveness.
https://iceeng.journals.ekb.eg/article_33265_091d449e9d116911d5ff4b6c52f07b3f.pdf
Feature Selection
classification
Patterns
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
19
10.21608/iceeng.2010.33266
33266
Original Article
Secured Voice Over Internet Protocol Based On Blowfish
Amr Khalil
1
BAHAA ELDIN BAHAA ELDIN
2
GAMAL SELIM
3
Orange Business Services.
Dr., Arab Academy for Science & Technology.
Prof. Dr., Arab Academy for Science & Technology.
Abstract:Voice over Internet Protocol, commonly known as VoIP, is the routing of voiceconversations over the Internet Protocol (IP)-based network. As the technology is inneed to extend the IP telephony deployments, securing the VoIP infrastructure willbecome increasingly important. This thesis outlines the VOIP technology, the currentVoIP security threats and a brief look is taken at present methods of how to secure theemerging technology where Voice over the Internet Protocol is vulnerable to a numberof attacks.Security is an essential consideration for VoIP providers since eachcomponent in the VoIP infrastructure can be used as a target, and VoIP has specificsecurity challenges as well.Firstly this thesis discusses the VOIP as the new promisingtechnology over the old deployed PSTN. Secondly, addresses the security issues andconcerns of this new technology. Finally, will discuss my proposal of securing the voiceover IP using the blowfish encryption technique at a layer between the SAPI. "Speechapplication programming interface" and the TAPI. "Telephony applicationprogramming interface"on the hardware level compared to other VOIP securityproposals.
https://iceeng.journals.ekb.eg/article_33266_b34092d3f0c20d3b4bbf5941fb08638c.pdf
VOIP
BLOWFISH
TAPI
SAPI
H323
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
20
10.21608/iceeng.2010.33267
33267
Original Article
Hand Gesture Recognition for Human-Computer Interaction Through Infrared Motion Sensing
Jan Adriano
1
Jay Delicana
2
Enrico Aquino
3
Karl Jamoralin
4
Cyrel Ontimare
5
Christopher Cabael
6
Noel Linsangan
7
Mapua Institute of Technology, Manila, Philippines.
Mapua Institute of Technology, Manila, Philippines.
Mapua Institute of Technology, Manila, Philippines.
Mapua Institute of Technology, Manila, Philippines.
Mapua Institute of Technology, Manila, Philippines.
Mapua Institute of Technology, Manila, Philippines.
Mapua Institute of Technology, Manila, Philippines.
Abstract:This paper presents a method of computer interaction using the IS-300Pro PrecisionMotion Tracker. The motion tracker compares the gestures with a defined pattern ofmovement so that it can be recognized. The method is developed using infrared lightemitting diodes (IR LEDs) attached to the thumb and index fingers of two gloves, andthe IS-300Pro motion tracker connected to a computer using the USB port. Amicrocontroller unit (MCU) supporting USB connection is employed for computerinterface. Software developed specifically for the application is installed in thecomputer. The system is able to recognize gestures for alphanumeric characters, as wellas user-defined gestures. The software interprets the gestures captured by the motiontracker and translates them to corresponding response hardcoded in the software. Threesoftware programs were developed to demonstrate the capabilities of the system.Experiments show that distance between the sensor and IR LEDs affects the accuracy ofgesture recognition and interpretation.
https://iceeng.journals.ekb.eg/article_33267_9f341d1ad1f1d2b4961594eb96308eb3.pdf
Motion Tracker
Gestures
Infrared
Hardcoded
Gesture Recognition
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
16
10.21608/iceeng.2010.33269
33269
Original Article
Multi-stages Visualized Parallel Beam CT Reconstruction with Performance Evaluation
Bassam Abd-Elwahab
1
Mahmoud Gadallah
2
Mohamed El-Mhalawy
3
Egyptian Armed Forces.
Modern Academy, Cairo, Egypt.
Egyptian Armed Forces.
Abstract:Computed tomography is a technique for estimating the interior of an object frommeasurements of radiation collected around the object. This radiation is projectedeither through or emitted from the object and the projections are reconstructed toform the object image. The reconstruction quality & time depend on many factorssuch as: filteration domain, filter type and interpolation level. The objective of thispaper is to develop an algorithm to simulate CT image reconstruction fromprojections (image simulated projections or raw data projections file).The developedprogram enables the user to investigate the effects of many factors mentioned aboveon the quality of the reconstructed images. The system has agraphical user interface(GUI) to facilitate changing the effictive factors and measuring the performance ofthe reconstruction. This system helps for studying the CT reconstruction process byintroducing many factors selections for development as well as for training
https://iceeng.journals.ekb.eg/article_33269_804e945364a1783dc1ce17cf969da80a.pdf
CT reconstruction
CT reconstruction simulation
Filtered back-projection
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.33270
33270
Original Article
Computerized EEG Abnormalities Detection
Ahmed Awadallah
1
Mahmoud Gadallah
2
Walid Foaud
3
Magdy ELkafafy
4
Emad ELsamahy
5
Egyptian Armed Forces.
Egyptian Armed Forces.
EL_Azhar University.
Egyptian Armed Forces.
Egyptian Armed Forces.
Abstract:The traditional Electroencephalogram (EEG) visual inspection suffers from the limitedaccuracy of the human interpretator, and the variation of different interpretator skills. Inaddition, the accurate investigation of the EEG requires long time and big effort. Aproposed Computerized EEG Abnormalities Detection (CEAD) system is introduced toovercome the limitations of the traditional EEG visual inspection method. This systemhas the ability to detect the EEG abnormalities automatically and display them to thephysician both numerically and graphically. Moreover, the system can show the EEGelectrodes that have the abnormal events on a graphical skull map. The proposed systemsaves much time and effort for the interpretator, as well as providing high accuracy indetecting the EEG abnormalities.
https://iceeng.journals.ekb.eg/article_33270_aa440f5ad345f47eb6572456c8c1ec58.pdf
EEG
Abnormalities Detection
Computerized Techniques
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.33271
33271
Original Article
A Hybird Algorithm For Blocking Power Swings
Doaa Ibrahim
1
Ahmed Zobaa
2
Essam Abo El-Zahab
3
Ghada Abo-Hamad
4
Faculty of Engineering, Cairo University, Cairo, Egypt.
University of Exeter, United Kingdom.
Faculty of Engineering, Cairo University, Cairo, Egypt.
Faculty of Engineering, Cairo University, Cairo, Egypt.
Abstract:The effect of fast power swing conditions causes the apparent impedance 'seen' by distanceprotection schemes to vary over a wide range. This paper aims to moderate a directionalimpedance relay by adding a Wavelet Transform (WT) block and combines the outputs in ahybrid algorithm to detect a fault as well as fault during power swing, and blocks relayoperation during power swings. The proposed relay has been tested for power swingconditions with different loading conditions and different power angles. In addition, testingthe proposed scheme for fault conditions with different fault locations, different faultresistance, different fault types, and different inception angles had been carried out. Theintegrated relay had been tested on a simulated system using MatLab program.
https://iceeng.journals.ekb.eg/article_33271_d0d739870155de9c5cfbb315c009bb87.pdf
Directional Relaying
Power Swings
Transmission lines
Wavelet Transform
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
22
10.21608/iceeng.2010.33272
33272
Original Article
Experimental Natural Prints And The Re-Calculated General Equations Of The Electrical Parameters For Buried Bare Pipe -Soil- Earth System With And Without Applying Cathodic Protection System
Ashraf Ahmed
1
Abstract:The rate of discharge through the stray electrolytic capacitor between the pipe and theremote earth is to be considered as the corrosion current. The electrochemical propertiesof the soil, which are the soil resistivity of the soil volume, the relative permittivity ofthe soil layer around the pipe and the chemical properties which could be considered asthe pH of the soil film layer around the pipe, are affected directly by the humiditychange. When considering the room temperature and by neglecting the effect of CO2content in the soil, these values of the electrochemical properties of any soil returnsback to its initial conditions after soil dryness to its initial condition. This means thatcorrosion rate will also be changed during the humidity change around the pipesegment. So, when considering the fact that the pipeline will not be changed or replacedand the surrounding medium around it will not be changed or replaced by another kindof soil, then the behavior of the electrical parameters (stray electrolytic capacitance,stray potential, surface created charge) of the pipe-soil-earth system will act as a print ofthis combination of this pipe and this soil. This paper recalculates the general form ofthe equations of the electric parameters and obtains the print curves & constants atnatural condition with and without applying cathodic protection system in terms of theelectrochemical properties around the pipe. The average error reduced to be less than ±5%. This will help to study both the corrosion problem and cathodic protection by anelectric concept with an electric analogue circuit which is the aim of this study.
https://iceeng.journals.ekb.eg/article_33272_974011f23691bff7ddd096aecff947d5.pdf
Electrical study of pipe – soil – earth system
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
21
10.21608/iceeng.2010.33273
33273
Original Article
The Proposed Electric Circuit Diagram Of The Buried Bare Pipe Segment- Soil - Earth System With And Without Applying Cathodic Protection System
Ashraf Ahmed
1
Abstract:Based on proposed electrical concept of corrosion process, it is possible to simulateburied bare pipe segment with the surrounding soil medium by an electric circuit wherethe circuit electric quantities are function of the electrochemical properties of the soil as4th degree polynomial equations. The equivalent cylindrical electrolytic capacitorbetween the pipe and the remote earth and the potential across it, verifies the equationthat charge Q = C × V at natural condition with & without applying cathodic protectionsystem. The created positive charges consists with an equivalent negative charge(electrons losses) a charged stray electrolytic capacitor between the pipe and the earththrough thin film soil layer around the pipe as cylindrical capacitor. The amounts ofthese charges are depending on the electrochemical properties of the soil which aresurrounding the pipe segment, the length of the pipe segment and its diameter. The rateof discharge (equivalent to capacitor self discharge) is to be considered as the corrosioncurrent. That’s beside the facts deduced before that all electrical parameters prints &equations are function of the electrochemical properties of soil medium around the pipeat different cathodic protection levels. The error of these new equations of the electricalparameters reduced to be less than ± 5%. This will help to study both the corrosionproblem and cathodic protection for a complete pipeline by an electric concept with anelectric analogue circuit which is the aim of this study. This will help, in the future, inthe choice of pipeline route, pipeline cathodic protection design and cathodic protectionmaintenance process for the pipe line along its route, however long it is.
https://iceeng.journals.ekb.eg/article_33273_2cf4ae03ac7c32d1f10331a0eabd9b27.pdf
Electrical study of pipe – soil – earth system
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
15
10.21608/iceeng.2010.33274
33274
Original Article
Impact of Midpoint SVC on the Generator Distance Phase Backup Protection
M. Elsamahy
1
S. Faried
2
T. Sidhu
3
G. Ramakrishna
4
Egyptian Armed Forces.
Department of Electrical and Computer Engineering, University of Saskatchewan, Saskatoon, SK, S7N 5A9, Canada.
Department of Electrical and Computer Engineering, University of Western Ontario, London, ON N6A 5B9, Canada.
Department of Electrical and Computer Engineering, University of Saskatchewan, Saskatoon, SK, S7N 5A9, Canada.
Abstract:In this paper, investigations are carried out to explore the impact of a midpoint SVC onthe performance of the generator distance phase backup protection (function 21). Theresults of these investigations have shown that the midpoint SVC has an adverse effecton such protection. Such an impact varies according to the fault type, the fault location,and the generator loading. The dynamic simulations of a test benchmark have beenconducted using the PSCAD/EMTDC software.
https://iceeng.journals.ekb.eg/article_33274_f03cc8494a349b34916b6a1f612d9a98.pdf
Generator distance phase backup protection
Static Var Compensator (SVC)
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
5
10.21608/iceeng.2010.33275
33275
Original Article
IMPROVED GEO-ENCREYPTION PROTOCOL FOR MOBILE NETWORKS
A. Amin
1
K. El Batran
2
Abstract:The wide spread of WLAN and the popularity of mobile devices increase the frequencyof data transmission among mobile users. However, most of the data encryptiontechnology is location-independent. Indeed, an encrypted data can be decryptedanywhere, however, The encryption technology cannot restrict the location of datadecryption. Therefore, our objective is to add a layer of security to the network withoutbreaking the network rules and to decrease network traffic. These aims can be achievedby two ways. First, when the receivers decrypt almost all the encrypted messages sentby senders. Second, when a decrease in the message queuing occurs. In order to meetthe demand of mobile users in the future, a location-dependent approach is proposed inwhich target latitude/longitude coordinate must be determined. The coordinate isincorporated with a random key for data encryption. The receiver can only decrypt theciphertext when the coordinate acquired from GPS receiver is matched with the targetcoordinate.
https://iceeng.journals.ekb.eg/article_33275_a210c9ee442b028b5c2d10e1351f62f8.pdf
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.33276
33276
Original Article
Secure Localization Model in Wireless Sensor Networks
Mostafa Sami
1
Ashraf Hussein
2
Prof.Dr., Computer Science Department - Helwan University.
Eng., Egyptian Armed Forces.
Abstract:Wireless Sensor Networks (WSNs) are the key of gathering the information in a smartenvironment. This environment could be a building, utilities, an industrial firm, etc.WSNs have an endless list of potential applications in both military and civilian fields.One common feature shared by all of these critical applications, is the vitality of sensorlocation. Many techniques have been discussed for sensor localization, the simple one isbased on using a Global Positioning System (GPS). Yet, it's not a feasible solution froman economic perspective. Therefore, other techniques use the known location beacon(special sensors) (BNs) to help the other sensors (SNs) to compute there location.Secure localization in WSNs has become a major focus for researchers in recent years.Since many intruders exploit the WSNs localization technique. Many secure localizationtechniques have been implemented, where the most recent one depends on a smart nodemonitoring to exclude any malicious nodes. This paper proposes an applicable SecureLocalization Model (SLM) for excluding malicious BNs to ensure secure localization ofSNs, by enabling BNs to monitor their neighbors, establishing a Neighbor Reputationtable (NRT), and then publish it as a response of the sensor location requests, so as theSNs can avoid the malicious BNs false location. Our simulation shows that the proposedSLM provides a simple and applicable secure localization model for WSNs.
https://iceeng.journals.ekb.eg/article_33276_c2b8a74a756c9727a1890679891e7d99.pdf
Wireless Sensor Networks
Beacon
malicious
Secure Localization
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.33277
33277
Original Article
Human Verification System Based on Gait Recognition using Active Horizontal Levels (AHL) Feature
Manhal Al-Mohammad
1
Gouda Salama
2
Tarek Mahmoud
3
Osama Saleh
4
Syrian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
Cairo Higher Institute for Engineering, Computer Science and Management.
Abstract:Nowadays, Gait is a crucial field for many Pattern Recognition researchers. It isconsidered as a good way for biometric authentication in many surveillance systems.The most important issue in gait recognition is the features extraction from thesilhouettes which are converted from walkers’ images or videos. In this paper a newmethod has been introduced to identify night walker images, which are captured byinfrared cameras. The new method depends on the silhouette’s presence percentage ondifferent horizontal levels. Minimum distance classifier has been used to choose theactive horizontal levels that lead to the highest identification rate. A proposed algorithmwhich is used to select the Active Horizontal Levels (AHLs) has been presented. Theproposed method was evaluated against CASIA silhouette database, to recognize walkerinto one, or multi silhouettes. The experimental results reveal the effectiveness of ournew method against other Gait recognition methods to achieve a better recognition rate.
https://iceeng.journals.ekb.eg/article_33277_54cbbf93093c11e86258afe374b959a2.pdf
Feature Extraction
Gait recognition
Biometric authentication
Active Horizontal Level
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.33278
33278
Original Article
Orbit Determination Using Spread Spectrum Ranging
M. Youssef
1
M. Zahara
2
A. Emam
3
M. Abd ElGhany
4
Al-Azhar University – Cairo – EGYPT.
Al-Azhar University – Cairo – EGYPT.
Al-Azhar University – Cairo – EGYPT.
Al-Azhar University – Cairo – EGYPT.
Abstract:In this paper, analysis on precise geostationary satellite orbit determination using spreadspectrum ranging measurements is performed. Adding to the communication system aresidue number system block to enhance its performance. The results are compared tothat provided from orbit determination using both dual RF-tone ranging from twoseparate earth station locations and classical orbit determination using both angularmeasurement and RF-tone measurements from an earth station.A model for the spread spectrum ranging system is developed to be used in the orbitdetermination process. Chaotic code generator is used instead of conventional PN codegenerators in the spread spectrum ranging system. The performance of the system isevaluated using both the chaotic and conventional code generators.A Matlab programs are developed to perform orbit determination process and tomeasure the bit energy to noise ratio required for the communication. The developedprograms take into account the dynamic model of the satellite orbit including variousorbital perturbations and simulate the path delay for ranging measurements includingclock offsets, thermal, ionosphere and troposphere noise. Acceptable results wereforeseen in comparison to the flight proven software tool.
https://iceeng.journals.ekb.eg/article_33278_ff26cafa584dd8a961b918c196b41ecc.pdf
Spread Spectrum
orbit determination
dual ranging
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
15
10.21608/iceeng.2010.33279
33279
Original Article
Design trade-off of a high resolution telescope for a remote sensing satellite
Alaa Eddin Mohammed
1
Samy Ghoniemy
2
Ayman Mokhtar
3
Taher Bazan
4
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
Abstract:In this paper several optical configurations for an orbiting high-resolution panchromatic pushbroomcamera are presented. The geometric design aspects for different optical sensor systems arediscussed. Several optical telescope configurations emphasizing the challenges associated with highresolution imaging are studied. Different case studies and the result of a trade-off analysis, consideringnot only optical performance but also other aspects such as cost, volume and complexity are presented.
https://iceeng.journals.ekb.eg/article_33279_aae4814a792507d99a7636070a7a4699.pdf
Remote sensing telescope
telescope design
telescope design trade-offs
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.33280
33280
Original Article
Ballistic Navigation Solution Using GPS/INS Integration
I. Arfaa
1
Y. Elhalwagy
2
A. Abdelmaged
3
R. Elbordany
4
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
Abstract:This paper demonstrates the importance of the INS/GPS/GLONASS integration into ballisticnavigation solution. The SINS uses (ENU) frame and the integrated system uses position and velocityas measurements. The system model of the integrated system for Kalman filtering are derived andmodeled as 27-states. This state estimation system shown clearly the application of fundamentalmodeling and filtering techniques. The simulation is built on the integrated systemINS/GPS/GLONASS and the trajectory generator data. From the results we found that parameters ofestimated gyro errors such as vertical and east gyro drifts, and also estimated east accelerometer biasare not observables.
https://iceeng.journals.ekb.eg/article_33280_aef35180d1699bd4eab6a63238805ffc.pdf
Aided Navigation System
Kalman filter
SDINS
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
15
10.21608/iceeng.2010.33281
33281
Original Article
Future trend of global navigation satellite systems (GNSS) and innovative applications
Tarek Attia
1
National Telecom Regulatory Authority (NTRA), Egypt.
Abstract:The purpose of this paper is to provide a general overview of current and future GNSSand various applications. The role played by the current GNSS in our live is set to growconsiderably with new demands for more accurate information along with integrationinto various applications. The real impact of satellite global positioning on society andindustrial development became evident and innovative applications will be availablewhen a GALILEO constellation and modernization of both GPS and GLONASSbecome operational.There is a need to determine precise ground locations for use in a variety of innovativeand emerging applications such as earth observation, rescue applications, and mobilephonetechnology. Location information is pertinent to a large number of remotesensing applications, some of which support strategic tasks such as disastermanagement, earth monitoring, protecting the environment, management of naturalresources, and food production. With the availability of high-resolution images, someapplications will require a location precision down to 1 m. The GNSS provide signalsthat can serve this purpose.The traditional fields of application for GPS are shipping, aviation, detection,synchronization of telecommunications networks and security of the objects. However,the market is currently enjoying a growth in demand for electronic car navigationsystems which make better use of the road traffic network. Automatic Vehicle Location(AVL) and the fleets' management also appear to be growth rapidly. The advents of newsatellite systems as well as the modernization of the current satellite navigation systemsand the introduction of new frequencies are expected to contribute to the developmentof new techniques enabling precise positioning with less complexity and lower cost.The majority of satellite navigation applications are currently based on GPSperformances, and great technological developments are spent to integrate satellite
derived information with a number of other techniques in order to reach betterpositioning precision with improved reliability, accuracy and availability. With allelectronics technologies there is an endless challenge aims to improve the performanceof GNSS in signal acquisition, signal tracking, multi-path mitigation and interferencerejection while at the same time reducing size, power consumption and cost and addingsupport for more GNSS constellations.
https://iceeng.journals.ekb.eg/article_33281_c2eaef941a53bf00a63ee2cc9f3ad99c.pdf
Global navigation satellite systems
Augmentation systems
applications
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
8
10.21608/iceeng.2010.33282
33282
Original Article
Wavelet Spectral Techniques for GPS Errors Reduction
Mohamed Elhabiby
1
Ahmed El-Ghazouly
2
Naser El-Sheimy
3
Mobile Multi-Sensor Systems (MMSS) Research Group, Department of Geomatics Engineering, the University of Calgary Calgary, Alberta, CANADA.
Mobile Multi-Sensor Systems (MMSS) Research Group, Department of Geomatics Engineering, the University of Calgary Calgary, Alberta, CANADA.
Mobile Multi-Sensor Systems (MMSS) Research Group, Department of Geomatics Engineering, the University of Calgary Calgary, Alberta, CANADA.
ABSTRACTGPS measurements can be modeled as a true range plusother errors such as orbital and clock biases, atmosphericresidual, multipath, and observation noise. Modeling isone approach to deal with some of these errors, if theircharacteristics are known (e.g. troposphere andionosphere errors). Another way to deal with these errorsis filtering in the frequency domain, where all these errorshave different frequency spectrum component. Eacherrors is characterized by a specific frequency band, e.g.the receiver noise can be characterized with highfrequency components, multipath errors, which have lowto medium frequency bands, while the ionospheric andtropospheric errors are at a lower frequency band.
Wavelet spectral techniques can separate GPS signal intosub-bands where different errors can be separated andmitigated. This paper introduces two new wavelet spectralanalysis techniques to mitigate DGPS errors in thefrequency domain namely, cycle slip and multipath errors.The first approach in this paper, Wavelet de-trending, isintroduced to remove the long wavelength carrier phasemultipath error in the measurement domain. Thepresented wavelet-based trend extraction model is appliedto GPS static baseline solutions. The second approach inthis paper is introduced to detect and remove cycle sliperror which can be seen as a singularity in the GPS data.The propagation of singularities between the waveletslevels of decomposition is different from the propagationof noise. This characteristic is used to identify thesingularities from noise.
https://iceeng.journals.ekb.eg/article_33282_38df04fa9fe6b917f8f93b26bac1cff3.pdf
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
11
10.21608/iceeng.2010.33283
33283
Original Article
Low power, Low Voltage and High Gain UWB Low-Noise Amplifier in the 0.13 μm CMOS technology
Alhassan. Sayed
1
Hesham Hamed
2
El-Sayed Hasaneen
3
Faculty of Engineering, Minia University, Minia, Egypt.
Faculty of Engineering, Minia University, Minia, Egypt.
Faculty of Engineering, Minia University, Minia, Egypt.
Abstract:In this paper, we present a fully integrated CMOS LNA (low noise amplifier) with inputmatching LC ladder technique circuitry to cover the upper band of UWB from 3.1 to 10GHz. Also, an improved technique of derivative superposition (DS) method is proposedto improve the linearity by using both forward body bias technology, and currentreused.The proposed LNA can operate at reduced supply voltage and powerconsumption. This configuration provides better input matching, lower noise figure, andmore reverse isolation which is vital in LNA design. Complete analytical simulation ofthe circuit results in frequency of 3.1 GHz to 10 GHz, with 2.44 dB NFMIN, 50Ω inputimpedance, 13.5dB peak power gain (S21), high reverse isolation (S12) -50 dB, -15dBinput matching (S11) and -10dB output matching (S22), while dissipating as low poweras1.5mW low supply voltage of 0.6 V.
https://iceeng.journals.ekb.eg/article_33283_6eccce17480932b7b559891bce198870.pdf
CMOS
forward body bias
low noise amplifier (LNA)
low voltage
Noise figure (NF)
nonlinearity
third-order input intercept point (IIP3)
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
8
10.21608/iceeng.2010.33284
33284
Original Article
Consensual noise modeling of a microwave transistor
N. Tokan
1
F. Güneş
2
F. Gürgen
3
Yıldız Technical University, Istanbul, Turkey.
Yıldız Technical University, Istanbul, Turkey
Boğaziçi University, Istanbul, Turkey.
Abstract:In this work, a consensual approach is developed and applied to the noise modeling ofmicrowave transistors. In the proposed method, multiple individual models generated byan expert system ensemble are combined by a consensus rule that results in a consistentand improved generalization outputting with the highest possible reliability andaccuracy. Here the expert system ensemble is basically constructed by the competitorand diverse regressors which in our case are Back-Propagation (BP) Artificial NeuralNetwork (ANN), Support Vector Regression Machine (SVRM), k-Nearest Neighbor (k-NN) and Least Squares (LS) algorithms that perform generalization independently fromeach other.
https://iceeng.journals.ekb.eg/article_33284_4e26a62e45d3a12bbe084f7120f36061.pdf
Consensual modeling
Artificial Neural Networks
support vector regression
least squares and k-nearest neighbor algorithm
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
7
10.21608/iceeng.2010.33285
33285
Original Article
ANALYTICAL MODEL FOR FREQUENCY RESPONSE OF A GUNN DIODE IN TRANSIT TIME MODEAND APPLICATION FOR GALLIUM NITRIDE BASED DIODES
Onirban Islam
1
Galib Hassan
2
Ahsan Uddin
3
Raisul Islam
4
Zahid Mahmood
5
Md., Undergraduate student, Department of Applied Physics, Electronics and Communication Engineering, University of Dhaka, Dhaka-1000, Bangladesh.
Md., Undergraduate student, Department of Mathematics, University of Dhaka, Dhaka-1000, Bangladesh.
Md., Graduate student, Department of Applied Physics, Electronics and Communication Engineering, University of Dhaka, Dhaka-1000, Bangladesh.
Md., Undergraduate student, Department of Applied Physics, Electronics and Communication Engineering, University of Dhaka, Dhaka-1000, Bangladesh.
Associate Professor, Department of Applied Physics, Electronics and Communication Engineering, University of Dhaka, Dhaka-1000, Bangladesh.
Abstract:Gunn oscillation can occur via the transferred electron effect or the negative differentialmass effect. We have mathematically formulated the frequency response of a Gunndiode operating in the transit time mode independent of the mechanism responsible forGunn oscillation in bulk semiconductors. Domain growth dynamics with space andtime, variation of domain velocity, and frequency response have been simulated forGallium Nitride (GaN) by using our mathematical equations. Our simulation shows thatgallium nitride based Gunn diodes at an active length of 5 micrometer can producefrequency around 40 GHz for DC biasing 150 V.
https://iceeng.journals.ekb.eg/article_33285_f196f83a16b2aaa36557671bad9ac0ad.pdf
Domain growth dynamics
domain velocity
frequency response
GaN-Gunn diode
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
12
10.21608/iceeng.2010.33286
33286
Original Article
MAINTENANCE OF HIGH VOLTAGE EQUIPMENT IN HIGH VOLTAGE SUBSTATIONS
Nenad Trkulja
1
JP “Elektromreža Srbije“
2
Belgrade, Serbia
3
M.Sc.El.Eng.
Resume:Due to the increasing influence of power equipment maintenance to the price ofdelivered/undelivered energy, this paper provides the categories, strategy and policies ofthe maintenance. It also defines the maintenance activities, the ordinary requiredmaintenance and optimal intervals of the maintenance. The paper defines themaintenance planning in compliance with the confronted requirements of theexploitation and maintenance as well as the availability of plants elements. Based uponthe above, a model is provided for the calculation of the life cycle costs (LCC).
https://iceeng.journals.ekb.eg/article_33286_2ec9263fc6f9dc6892bda1719c41d9ef.pdf
maintenance
corrective
prevention
Intervention
plan
status
Revenue
cost
Policy
Strategy
Reconstruction
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
15
10.21608/iceeng.2010.33287
33287
Original Article
HVDC Systems Voltage Profiles Under Different Conditions for Interconnected power systems
Nagat Abdel -Gawad
1
Faculty OF Engineering (Shoubra), Benha University.
Abstract:High voltage direct current (HVDC) electric power transmission systems arepreferred, in some situations, to the common alternating current AC transmissionsystems as a means for bulk transmission of electrical power. Modern form ofHVDC transmission uses, extensively, modern technology. Some AC electric powersystems, which are required to be connected together, may not be synchronized.Therefore, they cannot be connected even if the distance between them is short.Also, in some circumstances, it is physically impossible, or highly impracticable, toconnect them, even if they are synchronized. In such conditions, HVDC systems areconsidered to be the most effective method for connecting these systems.Therefore, in this paper investigation of the performance of HVDC systemsunder different operating conditions are conducted. Models representing some actualHVDC systems, and giving voltage profiles produced under different conditions, andsimulated using Matlab/Simulink. Corresponding computed results are obtained.
https://iceeng.journals.ekb.eg/article_33287_4671a51f6f8e5da3bf8c2121f6a59aef.pdf
Transmission systems
HVDC system configurations
HVDC system performance
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
11
10.21608/iceeng.2010.33288
33288
Original Article
Optimal electric field performance of EHV transmission lines using ground shield conductors
Mohamed Abou El-Ata
1
Department of Electrical Engineering, Shoubra Faculty of Engineering, Benha University, Cairo, Egypt.
Abstract:Assessment and mitigation of the environmental impact of EHV power lines is a subjectof current research due to the possible associated health hazards. The electric fieldbeneath the line and the field on the conductor surface are known to be main sources ofconcern from an environmental standpoint. The present approach serves as means ofreducing the electric field under EHVAC lines using ground shield wires. The aim is todetermine the optimal ground shield wire heights and clearances to satisfy a set of fieldlimitations on the conductors as well as on the ground. Genetic Algorithms, GAs, areemployed to arrive at the required optimal clearances through an appropriate fitnessfunction. The merits of the proposed approach are demonstrated for 3-phasehorizontally-arranged 500 kV single circuit transmission line. Results show theeffectiveness and accuracy of the proposed approach.
https://iceeng.journals.ekb.eg/article_33288_266c1a312a4d786e848276defacd28c2.pdf
ground shield wires
electric field mitigation
Transmission lines
Genetic Algorithms
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
21
10.21608/iceeng.2010.33290
33290
Original Article
Nonlinear Control based Sliding Modes for HVDC Light System Behavioral Enhancement under Parameters Uncertainties
H. Ramadan
1
M. Petit
2
H. Siguerdidjane
3
R. Kaczmarek
4
Assistant Lecturer in Zagazig University, Zagazig, Egypt and a PhD student in Ecole Supérieure d’Electricité (SUPELEC), Gif sur Yvette, France.
Ecole Supérieure d’Electricité (SUPELEC), Gif sur Yvette, France.
Ecole Supérieure d’Electricité (SUPELEC), Gif sur Yvette, France.
Ecole Supérieure d’Electricité (SUPELEC), Gif sur Yvette, France.
Abstract:Two different nonlinear control methodologies based robust Sliding Mode Control(SMC) for HVDC LightTM transmission system’s possessing parameters uncertaintiesare proposed. Appropriate feedback signals are formulated to control the active andreactive powers towards their specified set point values and to govern the DC linkvoltage to its desired value. The first controller maintains the active and reactive powersto their anticipated rated values using their corresponding reference signals directly. Theother uses an additional auxiliary controller based proportional-integral (PI) controlleror the two degrees of freedom proportional-integral-derivative (2DOF-PID) controller togovern the DC voltage and to generate the necessary direct and quadrature currentsreference signals that are inserted to the main controller based SMC in order to controlthe corresponding powers. The controllers’ gains are adjusted using Lyapunov methodto guarantee zero tracking error in order to ensure the system’s stability. The feasibilityand effectivity of both control techniques are evaluated in terms of performanceenhancement and their robustness are compared under parameters uncertainties andverified for different DC link lengths using MATLAB©.
https://iceeng.journals.ekb.eg/article_33290_a5e39862b7a74ebc96e6906b721ae546.pdf
Lyapunov Functions
Parameters Uncertainties
Robustness
SMC
and VSC-HVDC
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
10
10.21608/iceeng.2010.33291
33291
Original Article
Content-based Search for Effective Image Retrieval
Hsiao Pao
1
Hsin Fu
2
Dept. of management science, National Chiao-Tung University, Hsinchu, Taiwan, ROC.
Dept. of computer science, National Chiao-Tung University, Hsinchu, Taiwan, ROC.
Abstract:In this paper we present a content-based approach for effectively searching andretrieving images. The proposed content-based image query and retrieval (CBQR)method uses two or more types of query for accessing images --- textual annotationassociated with images and visual appearance, such as color, texture and positionalfeatures of objects in sample images. A user places a keyword-based query first andthen retrieves desired images by visual content-based query. A prototype CBQR systemwas implemented and is available at http://140.113.216.66/WebImageSearch for onlinedemo, and public evaluation. We also conducted experiments over a categorized Corelimage collection and a non-categorized WWW image collection to show theperformance of the proposed CBQR method.
https://iceeng.journals.ekb.eg/article_33291_b32a564dfb9c8df91ff079d665c55672.pdf
Image query and retrieval
Text search
Content-based
Content-based query
Modelbased search
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
11
10.21608/iceeng.2010.33293
33293
Original Article
An Efficient Modified Advanced Encryption Standard (MAES) Adapted for Image Cryptosystems
Abdulkarim Shtewi
1
Bahaa Eldin Hasan
2
Abd El Fatah Hegazy
3
Eng., Arab Academy for science &Technology College of Computing and Information Technology, Cairo branch,Egypt.
Dr.Eng., Arab Security Consultants-ASC, 76 Dr. Mohey Eldin Abdelhamed St. Nasr City, Cairo, Egypt.
Prof.Dr., Arab Academy for science &Technology College of Computing and Information Technology, Cairo branch, Egypt.
AbstractSecurity in transmission storage of digital images has its importance in today's image communications and confidential video conferencing. Advanced Encryption Standard (AES) is a well known block cipher that has several advantages in data encryption. However, it is not suitable for real-time applications. In this paper, we present a modification to the Advanced Encryption Standard (MAES) to reflect a high level security and better image encryption. The modification is done by adjusting the ShiftRow phase. Experimental results verify and prove that the proposed modification to image cryptosystem is highly secure from the cryptographic viewpoint. The results also prove that with a comparison to original AES encryption algorithm the modified algorithm (MAES) gives better encryption results in terms of security against statistical attacks.
https://iceeng.journals.ekb.eg/article_33293_d49b3b7dd9443981193ba2416a27d26a.pdf
AES
MAES
image encryption
security analysis
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
8
10.21608/iceeng.2010.33294
33294
Original Article
Tracking and Speed Estimation of Moving Objects by Image Tracking Systems
Amr EL-Kalubi
1
ZHOU Rui
2
Hosam Abd Elhamed
3
Egyptian Air Force.
Dept. of Automatic Control, Beihang University, Beijing, China.
Egyptian Air Force.
Abstract:This paper presents an application of computer vision methods to traffic flowmonitoring and road traffic analysis. The application utilizes image-processing andpattern recognition methods designed and modified to the needs and constrains ofroad traffic analysis. These methods combined together gives functional capabilitiesof the system to monitor the road, to initiate automated vehicle tracking, to measurethe speed including the main steps for tracking speeds for moving objects. And designa new proposed algorithm for estimating traffic speed using a sequence of imagesfrom an un-calibrated camera using MATLAB SIMULINK.
https://iceeng.journals.ekb.eg/article_33294_e643011bad00dc2c5df38d90d8c3aaae.pdf
Estimation
Computer Vision Systems
Image Ttracking Systems
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
10
10.21608/iceeng.2010.33464
33464
Original Article
PARETO OPTIMAL SYNTHESIS OF THE LINEAR ARRAY GEOMETRY FOR MINIMUM SIDELOBE LEVEL AND NULL CONTROL DURING BEAM SCANNING
Fikret Tokan
1
Filiz Gunes
2
Yıldız Technical University, İstanbul, Turkey.
Yıldız Technical University, İstanbul, Turkey.
Abstract:In this work, synthesis of the linear array geometry is put forward as a constrainedvector optimization problem whose components are to meet the minimum sidelobe level(SLL) and control of the wide/narrow null placement during beam scanning. Since thesesynthesis objectives generally conflict with each other, non-dominated solutions aresearched using the Non-Dominated Sorting Genetic Algorithm- II (NSGA-II). Then, thePareto frontiers are obtained using these trade-off solution sets between the maximumSLL, null control and scanning range to provide a view of all design options. Thus, thepattern features resulted from these Pareto frontiers are valid for any chosen main beamdirection within its full prescribed beam scanning range. Finally, some typical Paretooptimal radiation patterns of the scanning arrays are synthesized with only perturbatingthe positions of the array elements and their full electromagnetic wave simulations arealso completed to examine the resulted mutual coupling effects between the elements ofthe arrays.
https://iceeng.journals.ekb.eg/article_33464_d6cae677053be59c824f504558c3947e.pdf
Linear array
sidelobe suppression
null control
beam scanning
constrained multiobjective optimization
Pareto-optimal solutions
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
17
10.21608/iceeng.2010.33466
33466
Original Article
RCS REDUCTION USINGARRAYS OF PATCHES
W. Mahfouz
1
A. Ghuniem
2
Egyptian Armed Forces.
Suez Canal University.
Abstract:The radar echo characteristics of inanimate objects are given by the radar cross section(RCS) of the object. The RCS is proportional to the ratio of the scattered power densityat the receiver to the incident power density at the target. Echo reduction and its effectsare often the important concern of modern radar designers. There are different typesemployed to reduce the RCS, Shaping, radar absorbing material (RAM), passivecancellation, active cancellation, and plasma field[1]. Cancellation methods requireloading the object with discrete antenna like elements (slots, dipoles or patches) whoseimpedance must be chosen so as to cancel the returns from other parts of the body. Inthis paper a cancellation technique is used to reduce RCS of a metallic object by usingarray of microstrip patches designed at required frequency and distributed on the surfaceof plate with different structures. The best structure of array of patches, which givesminimum RCS independent of the polarization, is selected. The effects of height ofsubstrate, dielectric constant of substrate, the spaces between patches, and structure sizeon RCS reduction are discussed. Computer simulations with ZELAND package andmeasurements were performed to confirm the obtained results.
https://iceeng.journals.ekb.eg/article_33466_e0364192e8fe502069c047a33e13a6d2.pdf
Radar and microwave
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
11
10.21608/iceeng.2010.33467
33467
Original Article
A Public Key Cipher Algorithm Based on Multivariate Cubic Quasigroups (MCQ)
M. Fawaz
1
H. Zorkta
2
S. Alnazer
3
M. Fawaz : Master Candidate at Informatics College- Aleppo University- Syria.
H. Zorkta: Asst. Prof. at Network Dept.- Informatics College- Aleppo Unv. Syria.
S. Alnazer: Head of research Dept. Informatics College- Aleppo Unv. Syria.
Abstract:A new public key cipher algorithm is introduced in this article. This proposal is basedon a specific class of quasigroups string transformations called multivariate cubicquasigroups (MCQ).MCQ public key cipher algorithm is a public key block cipher algorithm, it is abijective mapping; it does not perform message expansions and can be used for bothencryption and signature. MCQ public key cipher algorithm consists of nmultivariate cubic polynomials with nd variables where n d.k : k 40,d 3.A particular characteristic of this proposal is that it is more secure and faster thanprevious MQQ version in decryption, its encryption speed is comparable to the speedof previous MQQ version, it is highly parallelizable, and it is well suited for shortsignatures.
https://iceeng.journals.ekb.eg/article_33467_ca98e64ad8858ab21839f225fd1ff8d3.pdf
Public Key Cryptosystems
Quasigroup String Transformations
Fast signature generation
Multivariate non Linear Polynomials
Multivariate Quadratic Quasigroup
Multivariate Cubic Quasigroup
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
6
10.21608/iceeng.2010.33468
33468
Original Article
Phase gradient Autofocusing Technique (PGA)
A. Amein
1
F. Ahmed
2
M. Ahmed
3
N. Mikhail
4
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
Egyptian Armed Forces.
Abstract:The phase-gradient autofocusing algorithm (PGA) has been widely used in spotlight Synthetic Aperture Radar (SAR) tocompensate motion-induced blurs in the images. The PGA algorithm has proven to be a superior method for higher orderautofocusing because it does not assume a model for the phase error. In this paper, a proposed pc-based software model of the PGA is introduced. Simulation results between blurred and focused images, or between the input phase error function and the estimated one carried out by calculating the rms value of the residual phase error, show significant removal of highorder phase errors and better removal of the low-order phase errors. Finally, a suggested graphical user interface (GUI) of the proposed algorithm for easier handling on pc-based equipments is introduced.
https://iceeng.journals.ekb.eg/article_33468_3a4dc4fc18cc32c36812b421f1bd61c3.pdf
SAR
PGA
MoCo
GUI
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
6
10.21608/iceeng.2010.33469
33469
Original Article
An Online Optimal Explicit Guidance Scheme for Long Range Missiles with Solid Motors
Wael Ahmed
1
School of Automation Science and Electrical Engineering Beihang University Beijing, China.
Abstract—By combining nonlinear model predictive staticprogramming with dynamic inversion control, a hybrid robustexplicit guidance scheme is developed for long range missileswith solid motors. The developed guidance technique canproduce two successful guidance command profiles: a positiveprofile and a negative profile, where the negative profilesolution provides relatively less control command magnitude atswitch over time (i.e. time when the guidance is switched todynamic inversion control) than guidance with the positiveprofile. However, the positive profile is more feasible forballistic missile capability. The choice between the two profileswill depend on the constraints of the missile capability andmission requirement. The advantages of the developed guidancemethod are: 1) it is insensitive to energy uncertainties althoughthe motor total impulse (i.e. the area under the thrust ~ timecurve) is not constant, 2) it can be implemented online due to itsclosed form nature, with less computational difficulties. Thenumerical simulations demonstrate the advantages above.
https://iceeng.journals.ekb.eg/article_33469_33d62dca0232be36dd84ad26ccf70785.pdf
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
13
10.21608/iceeng.2010.33470
33470
Original Article
Applications of H-infinity loop shaping design procedure in UAV Flight Control Systems
Elfatih Hamdi
1
Ahmed Youssef
2
Gamal Elsheikh
3
Karary University, Khartoum, Sudan.
Military Technical College, Cairo, Egypt.
Science Valley Academy, Cairo, Egypt.
Abstract:The UAV flight control system is rich with attractive and challenging design problemsto achieve robust stability and acceptable performance across specified flight envelopein the presence of uncertainties. Therefore, this paper is devoted to design an adequateflight control system for stabilizing a fixed wing (Aerosonde) UAV under exogenousinputs. This UAV is modeled and it is utilized with the loop-shaping designprocedure (LSDP) to design the necessary flight control system such that theperformance requirements are achieved. This work is compared with a previous oneusing the classical controllers in terms of performance and stability robustness includingdisturbance rejection, noise attenuation, unmodeled dynamics, and control effort. Theobtained results clarify the ability of the designed system using H to cope with thespecified levels of uncertainty including unmodeled dynamics, disturbances andmeasurement noise. In addition, it reveals its superior capabilities upon the classicaltechniques.
https://iceeng.journals.ekb.eg/article_33470_accf6eb9625b8270c3dfdcd592ae56ac.pdf
UAV
Flight Control
Robust Control Techniques
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
14
10.21608/iceeng.2010.33471
33471
Original Article
Tuning of Digital PID Controller for Multivariable Systems Using Local Optimal Controller
Mahmoud Ashry
1
Mohamed Mabrouk
2
Tim Breikin
3
Egyptian Armed Forces.
Egyptian Armed Forces.
Control systems centre, University of Manchester, Manchester, UK.
Abstract:This paper introduces a new tuning technique for digital PID controller parameters ofmultivariable systems. This technique is based on the modified Local OptimalController (LOC) parameters for certain predefined model structures. The modifiedLOC parameters can be obtained using the identified parameters of the predefinedmodel structure. As such, the digital PID controller parameters can be tuned using themodel parameters of certain predefined structures and a single tunable parameter relatedto the LOC for each output of the multivariable system. Becoming a model-basedcontroller, the PID controller parameters can be adjusted in automatic mode.This new technique is compared with the existing Genetic Algorithm (GA) techniquefor tuning digital PID controller parameters. The comparison is based on theexperimental results of the Bytronic Process Control Unit (PCU).
https://iceeng.journals.ekb.eg/article_33471_597f72ec9ba6bec9094266353b7a9ae8.pdf
Digital PID Tuning
Local Optimal Controller
multivariable systems
eng
Military Technical College
The International Conference on Electrical Engineering
2636-4433
2636-4441
2010-05-01
7
7th International Conference on Electrical Engineering ICEENG 2010
1
12
10.21608/iceeng.2010.33472
33472
Original Article
Non-Linear Local Optimal Control for Multivariable Systems
Mahmoud Ashry
1
Gamal Elnashar
2
Tim Breikin
3
Egyptian Armed Forces.
Egyptian Armed Forces.
Control systems centre, University of Manchester, Manchester, UK.
Abstract:To control non-linear systems along the whole range of operations, Non-linear controltechniques are used. Neural network and generalized minimum variance controllers aretwo of the most common non-linear control techniques.In this paper, Local optimal controller is generalized to deal with non-linear systems.This new non-linear controller is used to deal with multivariable systems as well assingle-input single-output systems.The effectiveness of the non-linear local optimal controller when dealing withmultivariable systems is represented in this paper based on the results obtained from thehigh purity distillation column model.
https://iceeng.journals.ekb.eg/article_33472_fb8cf3fbcb3ce98315447d3f59679ec0.pdf
Non-linear control
local optimal control
multivariable systems