International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04.最新文献

{"title":"Reconfigurable media processing system for IP based communication application","authors":"M. M. Rahmatullah, Shoab A. Khan, Sheikh M Farhan, Habibullah Jamal","doi":"10.1109/ICEEC.2004.1374391","DOIUrl":"https://doi.org/10.1109/ICEEC.2004.1374391","url":null,"abstract":"This paper presents a novel reconfgurable media processing system for IP based communication. The system consists of multiple pDSPs specially designed for media processing applications. Though all these pDSPs are programmable and can implement all applications but they also have application spec@ instructions. The system is designed as media processing component in a multi-service access platform, which can simultaneously support multiple channels of applications like, voice, video, speech, and f a over IP on a single device. The system is mapped on a partially reconfigurable FPGA-based system. A scheduler dynamically maps pDSPs, associated software and states on the FPGA while optimizing reconfiguration time, area, power and number of channels. This innovative approach gives birth to a design paradigm where a host of applications can be dynamically mapped on smaller silicon optimizing area, power, execution time, throughput and time to market of the product.","PeriodicalId":180043,"journal":{"name":"International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04.","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132934571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of using compact fluorescent lamps on power quality","authors":"M. Sadek, A. Abbas, M. El-Sharkawy, H. Mashaly","doi":"10.1109/ICEEC.2004.1374641","DOIUrl":"https://doi.org/10.1109/ICEEC.2004.1374641","url":null,"abstract":"Power quality has become a major concern, in particular, to the domestic consumers because the reliability and efficiency of their devices very much rely on the quality of electric Based on economical considerations, power utilities encourage the use of compact fluorescent lamps (CFL) as they are energy saving, have more lifetime, and offer more lighting intensity (LUX). This paper describes a comparison study between Tungsten lamp (TNG) and Compact Fluorescent Lamp (CFL) to clarify the effect of using CFL on the system power quality, the associated distribution losses, efficiency, and regulation taking into account the effect of harmonic content on the overall electric power system. supply.","PeriodicalId":180043,"journal":{"name":"International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04.","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133213709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adaptive speed control of permanent magnet synchronous motor","authors":"A. N. Seghir, M. Boucherit","doi":"10.1109/ICEEC.2004.1374633","DOIUrl":"https://doi.org/10.1109/ICEEC.2004.1374633","url":null,"abstract":"This paper deals with the design and application of an adaptive control based on Weighted Minimum Prediction Error (WMPE) control strategy of Permanent Magnet synchronous Motors (PMSM). The traditional Proportional-Integral (Po controller is largeb used in industry because of the robustness that procures this regulator. When the dynamics of the system vary over time or with operating conditions, the PI controller became not available. The (WMPE) control strategy combined with a recursive least square estimation algorithm gives an Adaptive controller for a drive speed seem to be a promising solutions to achieve the requiredperformance. In this study we apply adaptive regulator in place of PI controller of the field-oriented control scheme of the PMSM. The simulation results obtained show the eflciency of the proposed controller to ensure robustness against load and parameters variations and to achieve the requiredperformances.","PeriodicalId":180043,"journal":{"name":"International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04.","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134345178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deducing local ELF field values from large sense coil fluxmeter measurements","authors":"N. S. Hosny, A. Adly, M. M. Abdel-Aziz","doi":"10.1109/ICEEC.2004.1374630","DOIUrl":"https://doi.org/10.1109/ICEEC.2004.1374630","url":null,"abstract":"Great interest has been arising in the precise measurements of ambient ELF magnetic fields. Among the most convenient and cheap devices used .in measuring ELF magnetic fields are fluxmeters. In regions where field values change rapidly within sense coil dimensions, signijkant inaccuracies result in fluxmeter measurements. This paper proposes a novel approach using which local field distributions within the fluxmeter sense coil dimensions may be obtained. Theoretical details and sample simulation results of the approach are given in the paper.","PeriodicalId":180043,"journal":{"name":"International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04.","volume":"175 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133331922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ERL: an algorithm for fast evaluation of exponential, reciprocal, and logarithmic functions","authors":"F. Gebali, M. El-Kharashi","doi":"10.1109/ICEEC.2004.1374440","DOIUrl":"https://doi.org/10.1109/ICEEC.2004.1374440","url":null,"abstract":"A fast algorithm (ERL) is proposed for waluating Exponential, Reciprocal, and Logarithmic functions. The algorithm requires two to three iterations to complete using simple operations such as multiply, accumulate, and table lookup. The algorithm is independent of the number format used by the machine. Thus it can be implemented using the IEEE 754 ?oating-point standard or any other special format used by special-purpose processors. The dynamic range of the algorithm is limited only by the dynamic range of the machine on which it is implemented Numerical simulations are performed which veri& the speed and accuracy of the algorithm. I . INTRODUCTION Iterative techniques are used in computer arithmetic for the evaluation of elementary functions using minimal hardware. CORDIC is a prime example of such techniques where it has been used to evaluate trigonometric and hyperbolic functions as well as logarithms and division [l], [2], [3], [43. However, CORDIC is a slow algorithm that suffers fiom limited dynamic range and several authors attempted to remedy that with limited [14]. The main drawbacks of CORDIC are discussed in detail in [14]. Basically CORDIC is an algorithm with slow convergence and limited range. This paper is organized as follows. Section I1 discusses the new algorithm. Section V discusses the main operations that can be performed on an input vector. Section VI1 shows some numerical simulations to verify the algorithm. Section VI11 summarizes the main conclusions. 11. THE ERL ALGORITHM Consider the vector whose end point (X,Y) moves along the curve success PI, ~41, ~61, 171, PI, ~91, [io], [111, [121, [131, X x Y = R 2 (1) Differentiate the above equation Starting from an initial pint (Xo,Yo), we can move to another point (X,Y) on the curve such that Using (2), the corresponding change in Y is given by X = & + A X (3) Y = Yo+AY (4) Choosing A X = a x , we can ?nd AY fiom (2). Thus X and Y are given by x = XO(l+(Y) ( 5 ) Y = Yo(1-a) (6) 111. THE SCALE FACTOR The radius of the vector after the updates is given by R2 = X X = xo x Yo x (1 -2) = Ri x (1-(r2) For R to remain real, LY must lie within the range","PeriodicalId":180043,"journal":{"name":"International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04.","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133333839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Computer modeling and simulation of wind energy system connected to utility gird","authors":"H. El-Tamaly, A. Mohammed","doi":"10.1109/ICEEC.2004.1374624","DOIUrl":"https://doi.org/10.1109/ICEEC.2004.1374624","url":null,"abstract":"This paper focus in wind energy system connected to the utility grid taking into account all wind speed conditions and variation of the load demand during the day. It introduces not only a computer modeling, simulation, analysis of a variable speed wind turbine generator and a sinusoidal pulse width modulation voltage source inverter but also design of LCPlter to reduce harmonics generated by the inverter. A computer simulation program has been designed to simulate phase voltage, line voltage of the inverter leg and current in each IGBT's. It also simulates AC output current of the inverter that injected to the load/grid, load current, grid current, power output of the inverter, power delivered to or from grid andfinally power factor of the inverter and grid. The computer simulation program is confirmed on a realistic circuit model which implemented in the simulink environment of Matlab and works as if on line.","PeriodicalId":180043,"journal":{"name":"International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04.","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132166043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Realization of an efficient VLSI architecture for discrete wavelet transform in real time image compression","authors":"A. Hashad, K. Shehata, S. Gasser","doi":"10.1109/ICEEC.2004.1374566","DOIUrl":"https://doi.org/10.1109/ICEEC.2004.1374566","url":null,"abstract":"The discrete wavelet transforms is used as a forward transform in the JPEG2000 standard for still image compression. An eflcient VLSI architecture is presented and its performance is evaluated and compared to the previously proposed architectures. This architecture is functionally simulated and synthesized on two dserent types of FPGA chips, the design statistics and dynamic performance (maximum switching frequency) turned out to be practically feasible.","PeriodicalId":180043,"journal":{"name":"International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114382268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic algorithm cryptanalysis of a feistel type block cipher","authors":"A.M.B. Albassall, A. Wahdan","doi":"10.1109/ICEEC.2004.1374427","DOIUrl":"https://doi.org/10.1109/ICEEC.2004.1374427","url":null,"abstract":"In this paper, a method to discover the key of a Feistel Cipher (FC) using Genetic Algorithms is described. A Jitness measure based on the differential characteristics of the FC is proposed and complete problem formulation is described. The complexity of the proposed attack is shown to be less than half of normal differential cryptanalysis of the same FC.","PeriodicalId":180043,"journal":{"name":"International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04.","volume":"239 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114556189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CMOS APS ASIC testing and evaluation","authors":"S. Moussa, T. Elkhatib, H. Haddara, H. Ragaie","doi":"10.1109/ICEEC.2004.1374494","DOIUrl":"https://doi.org/10.1109/ICEEC.2004.1374494","url":null,"abstract":"An ASIC CMOS image Active Pixel Sensor (APS) with combined linear and logarithmic modes of operation is presented. The chip consists of a 64 x 64 pixel array, together with its digital control and timing circuits. Test structures including individual photodiodes and pixels are also integrated for characterization purpose. The chip features selectable linear and logarithmic modes of operation, digitally controlled integration time, and correlated double sampling (CDS) circuit for readout. The chip was designed and fabricated using a 0.6 μm CMOS process. The experimental results obtainedfrom the chip are presented in this paper.","PeriodicalId":180043,"journal":{"name":"International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04.","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116706695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of diversity measures for multiple classifier fusion by majority voting","authors":"S. Mahmoud, M. El-Melegy","doi":"10.1109/ICEEC.2004.1374412","DOIUrl":"https://doi.org/10.1109/ICEEC.2004.1374412","url":null,"abstract":"Recently, decision fusion has shown great potential to increase classification accuracy beyond the level reached by individual classijiers. However, dependencies among classijiers ' outputs strongly influence performance in a multiple classijier system (MCS) and thus have to be taken into account. In this paper, diversity between diferent classifers used in remote sensing is assessed statistically. Several such measures are surveyed and evaluated on real benchmark remote-sensing datasets and using simulations. The quality of a measure is assessed by the improvement in the accuracy of the multiple classijiers combined by the simple, yet efficient majority voting rule, Our experiments show that some diversity measures can indeed predict the performance of the fused classijiers, and thus should be considered on designing a MCS.","PeriodicalId":180043,"journal":{"name":"International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04.","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114638895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}