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2009 International Conference on Advances in Computational Tools for Engineering Applications最新文献

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A rapid adaptive PN code acquisition with antenna diversity for DS-CDMA communication DS-CDMA通信中具有天线分集的快速自适应伪码采集
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227908
A. Aissaoui, Z. Hammoudi
{"title":"A rapid adaptive PN code acquisition with antenna diversity for DS-CDMA communication","authors":"A. Aissaoui, Z. Hammoudi","doi":"10.1109/ACTEA.2009.5227908","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227908","url":null,"abstract":"In this paper, we propose an adaptive PN code acquisition scheme, named FAHAP (Fuzzy Adaptive Hybrid Acquisition Processor). The proposed system combines an antenna diversity technique and a hybrid search scheme. Two fuzzy adaptive detectors (CA-CFAR and OS-CFAR) are used. Each detector computes the value of the membership function spanned by the false alarm space from the reference cell samples and transmits it to the fuzzy fusion center. We use two levels of the fuzzy fusion to derive the global membership function. The performance of the proposed acquisition scheme is analyzed in frequency-selective Rayleigh fading channels. The simulation results show that the FAHAP processor significantly outperforms the conventional schemes. The effects of the degree of parallelism, the number of resolvable paths, the signal-to-noise ratio (SNR) and the number of antennas on the acquisition performance are also investigated.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130587138","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}
引用次数: 5
Coupling manipulation and locomotion tasks for a humanoid robot 类人机器人的耦合操纵与运动任务
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227870
L. Saab, P. Souéres, J. Fourquet
{"title":"Coupling manipulation and locomotion tasks for a humanoid robot","authors":"L. Saab, P. Souéres, J. Fourquet","doi":"10.1109/ACTEA.2009.5227870","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227870","url":null,"abstract":"This work deals with the use of tools from robotics for generating whole-body movements on anthropomorphic systems. The problem of coordinating the whole-body joints in order to combine manipulation and locomotion tasks is considered. Using inverse kinematics, the main scientific challenge comes from redundancy. We tackle it by considering a main equality task and additional inequality constraints. These secondary constraints are expressed by repulsive and attractive potential functions. Using this type of function, we provide a relaxation on the positioning of the projected center of mass into the support polygon, in order to increase the accessibility of the robot during reaching tasks. These methods were implemented on Matlab and the motion was simulated on the dynamic simulator OpenHRP of the HRP2 humanoid robot.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"5 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124213313","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}
引用次数: 9
Development of a digital model for Oman electrical transmission main grid 阿曼输变电主电网数字模型的开发
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227914
Omar H. Abdalla, H. Al-Hadi, H. Al-Riyami
{"title":"Development of a digital model for Oman electrical transmission main grid","authors":"Omar H. Abdalla, H. Al-Hadi, H. Al-Riyami","doi":"10.1109/ACTEA.2009.5227914","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227914","url":null,"abstract":"This paper describes the development of a digital computer model representing the main electric transmission system in Oman. A commercially available DIgSILENT power system computation package is employed. A brief description of system is given, which includes generating units, transformers, transmission lines and loads. The system is connected with a number of internal industrial plants to exchange electric power in addition to the interconnection between Oman and UAE. The model is used to perform computer studies such as load flows, short circuit analysis, stability, transient responses, etc. The simulation results are used for evaluating system performance and strategic planning purposes. Sample results are presented to show the capabilities of developed model.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130200339","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}
引用次数: 23
An advanced modulation technique for telemetry system used for smart capsules 用于智能胶囊遥测系统的先进调制技术
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227930
N. Fawaz, M. Durrenberger, D. Bau, D. Jansen
{"title":"An advanced modulation technique for telemetry system used for smart capsules","authors":"N. Fawaz, M. Durrenberger, D. Bau, D. Jansen","doi":"10.1109/ACTEA.2009.5227930","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227930","url":null,"abstract":"This paper presents an enhancement on QPSK modulation technique for near field communication (NFC). The enhanced modulation is based on continuous-phase QPSK with Gaussian filtering during switch from one phase to the other. Signal processing is done digitally with minimum external discrete components for air interface. The telemetry system can be used to assist a smart capsule (slave) that can be swallowed to establish data communication with external device (master). The system is designed, simulated, and emulated on FPGA showing 20 dB attenuation on side-lobes of the spectrum.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127592526","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}
引用次数: 0
Towards an electronic voting system for the state of Qatar 为卡塔尔建立电子投票系统
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227947
J. M. Alja'am, M. Alkhelaifi, Ali Al-Khinji, Moustafa Al-Sayrafi
{"title":"Towards an electronic voting system for the state of Qatar","authors":"J. M. Alja'am, M. Alkhelaifi, Ali Al-Khinji, Moustafa Al-Sayrafi","doi":"10.1109/ACTEA.2009.5227947","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227947","url":null,"abstract":"In this paper we propose an electronic voting system for the state of Qatar. The system allows Qataris people to vote online from their preferred locations, (homes or offices) without the need to move physically to the polling stations. The used algorithms ensure the security of the votes and the anonymity of the voters. A simulation of the system using four computers machine is being tested and evaluated before the real use of the system.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"386 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115305935","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}
引用次数: 7
A new method for state estimation of dynamic system based on Dempster Shafer theory 基于Dempster Shafer理论的动态系统状态估计新方法
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227922
Ghalia Nassreddine, F. Abdallah, T. Denoeux
{"title":"A new method for state estimation of dynamic system based on Dempster Shafer theory","authors":"Ghalia Nassreddine, F. Abdallah, T. Denoeux","doi":"10.1109/ACTEA.2009.5227922","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227922","url":null,"abstract":"The goal of state estimation method is to compute an accurate estimation of the state of the system based on the measurement given by different sensors and a mathematical representation of the system. In this paper a new state estimation method based on Dampster-Shafer theory and interval analysis is presented. This method uses belief structures composed of a finite number of axis-aligned boxes with associated masses. Such belief structures can model partial information on model and measurement uncertainties, more accurately than the bounded error approach alone. Focal sets are propagated in the system equations using tools from interval arithmetics and constraint satisfaction techniques, thus generalizing pure interval analysis. The results of applying the proposed method on a vehicle localization problem show the usefulness of the proposed method.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115386041","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}
引用次数: 2
A software platform for nanoscale device simulation and visualization 纳米器件仿真与可视化软件平台
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227880
M. Gayer, G. Iannaccone
{"title":"A software platform for nanoscale device simulation and visualization","authors":"M. Gayer, G. Iannaccone","doi":"10.1109/ACTEA.2009.5227880","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227880","url":null,"abstract":"NanoFEM platform is a new research environment based on the finite element method (FEM) for Technology CAD (TCAD) simulation and visualization of nanoscale devices, such as MOSFET transistors. The simulation in NanoFEM platform is based on solving partial differential equations corresponding to physical processes in modelled devices. A user or developer can provide these equations in a variational form format, and can define solver modules based on a FEM library with ability of automatic generation of finite elements and finite element forms. Solver modules can define fields for simulation and visualization and boundary conditions. Simple boundary conditions and material properties can also be specified directly in the graphical user interface. Geometry for the solved case can be defined either in graphical user interface or using Python scripting. Quality tetrahedral meshes necessary for FEM simulations are generated automatically. Visualization and post-processing is available in graphical user interface. We present some of related major existing solutions, namely open source geometry editors, mesh generators, computation libraries and visualization tools for FEM. We discuss major software components of the NanoFEM platform, i.e. Salome Platform and DOLFIN/FEniCS. We present an example simulation and visualization in NanoFEM platform. This is a simulation of the Poisson's equation on a 3D structure consisting of several geometry groups and materials forming a FinFET transistor with a mesh consisting of hundreds of thousands tetrahedrons. Because NanoFEM platform consists almost entirely of open source software components, others could eventually build similar solutions including, but not limited to TCAD device simulations after reading and reviewing the NanoFEM platform design and components.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131446764","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}
引用次数: 5
Centralized and distributed LTE uplink scheduling in a distributed base station scenario 分布式基站场景下的集中式和分布式LTE上行调度
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227938
E. Yaacoub, Z. Dawy
{"title":"Centralized and distributed LTE uplink scheduling in a distributed base station scenario","authors":"E. Yaacoub, Z. Dawy","doi":"10.1109/ACTEA.2009.5227938","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227938","url":null,"abstract":"The distributed base station concept is treated in the LTE scenario. Uplink scheduling in LTE systems with distributed base stations is considered. In the proposed model, users are connected to remote radio heads deployed throughout the cell and connected to a central base station. Centralized and distributed scheduling with a distributed base station are compared to centralized scheduling with a central base station. Monte carlo simulation results showed that LTE systems with distributed base stations achieve better throughput than systems with conventional base stations while allowing edge users better chances of accessing the resources.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130759593","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}
引用次数: 16
A semi numerical approach for semiconductor devices physical modeling 半导体器件物理建模的半数值方法
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227928
M. Dehmas, A. Azrar, A. Recioui, M. Challal
{"title":"A semi numerical approach for semiconductor devices physical modeling","authors":"M. Dehmas, A. Azrar, A. Recioui, M. Challal","doi":"10.1109/ACTEA.2009.5227928","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227928","url":null,"abstract":"In this work, the developed mathematical extension of the semi analytical Method of Lines (MoL) for the solution of Poisson's equation which governs the voltage distribution within semiconductor devices is adapted to fit realistic considerations related to the geometry and the electrodes configuration of such structures. The obtained tool is then applied to find the potential profile within a MOS capacitor in deep depletion mode.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"240 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131510879","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}
引用次数: 0
Application of Wavelet Transform in the field of Electromagnetic Compatibility and power quality of industrial systems 小波变换在工业系统电磁兼容和电能质量研究中的应用
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227896
G. Bousaleh, F. Hassoun, T. Ibrahim
{"title":"Application of Wavelet Transform in the field of Electromagnetic Compatibility and power quality of industrial systems","authors":"G. Bousaleh, F. Hassoun, T. Ibrahim","doi":"10.1109/ACTEA.2009.5227896","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227896","url":null,"abstract":"In this paper, we present the theory behind the Wavelet Transformation (WT) and its applications in the field of Electromagnetic Compatibility. This transformation will allow the exploration of both frequency and time characteristics of a given signal at the same time, overcoming the limitations of the Fourier Transform. We examine the application of wavelets in the treatment of perturbations affecting the quality of the power signal of the electric distribution systems (voltage dips, high voltage, harmonic dispersion..). The method was developed by using the MATLAB toolbox for discrete wavelet transform (DWT) analysis. The examples will be treated by both the STFT and the DWT. A comparison of the results will be presented. Finally, an application example of the DWT will be presented in order to characterize an internal fault in the transmission lines.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121935459","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}
引用次数: 8
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