2010 7th International Multi- Conference on Systems, Signals and Devices最新文献_第7页

Design and simulation of single stage single switch input current shaping circuit for AC/DC converter based on PWM technique 基于PWM技术的交直流变换器单级单开关输入电流整形电路的设计与仿真

2010 7th International Multi- Conference on Systems, Signals and Devices Pub Date : 2010-06-27 DOI: 10.1109/SSD.2010.5585584

Mahmoud Milad Alagele, M. Abdalla, A. Zerek

引用次数: 2

Comparison between Neural Network based PI and PID controllers 基于神经网络的PI与PID控制器的比较

2010 7th International Multi- Conference on Systems, Signals and Devices Pub Date : 2010-06-27 DOI: 10.1109/SSD.2010.5585598

Mohammed Y. Hassan, G. Kothapalli

{"title":"Comparison between Neural Network based PI and PID controllers","authors":"Mohammed Y. Hassan, G. Kothapalli","doi":"10.1109/SSD.2010.5585598","DOIUrl":"https://doi.org/10.1109/SSD.2010.5585598","url":null,"abstract":"The Pneumatic actuation systems are widely used in industrial automation, such as drilling, sawing, squeezing, gripping, and spraying. Also, they are used in motion control of materials and parts handling, packing machines, machine tools, and in robotics; e.g. two-legged robot. In this paper, a Neural Network based PI controller and Neural Network based PID controller are designed and simulated to increase the position accuracy in a pneumatic servo actuator. In these designs, a well-trained Neural Network provides these controllers with suitable gains depending on feedback representing changes in position error and changes in external load force. These gains should keep the positional response within minimum overshoot, minimum rise time and minimum steady state error. A comparison between Neural Network based PI controller and Neural Network based PID controller was made to find the best controller that can be generated with simple structure according to the number of hidden layers and the number of neurons per layer. It was concluded that the Neural Network based PID controller was trained and generated with simpler structure and minimum Mean Square Error compared with the trained and generated one used with PI controller.","PeriodicalId":432382,"journal":{"name":"2010 7th International Multi- Conference on Systems, Signals and Devices","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130447088","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: 26

High level estimation of implementation cost of using morphological filter in edge detection 形态学滤波在边缘检测中实现成本的高阶估计

2010 7th International Multi- Conference on Systems, Signals and Devices Pub Date : 2010-06-27 DOI: 10.1109/SSD.2010.5585562

K. Hamwi, M. Khaddour, O. Hammami

{"title":"High level estimation of implementation cost of using morphological filter in edge detection","authors":"K. Hamwi, M. Khaddour, O. Hammami","doi":"10.1109/SSD.2010.5585562","DOIUrl":"https://doi.org/10.1109/SSD.2010.5585562","url":null,"abstract":"Edge detection is a critical element in image processing, since edges contain a major function of image information. The function of edge detection is to identify the boundaries of homogeneous regions in an image based on properties such as intensity and texture. The morphological filter is used as an initial process in edge detection for noisy images where “opening-closing” operations are used to filter noise thus enhancing edge detection performance. In this paper we study the additional cost in resources caused by implementing the morphological filter prior to edge detection, area, power and energy consumption are considered, the cost is a major factor in determining to use or not the morphological filter in a particular application. To achieve this estimation we used a high level estimation tool, high level design and estimation is gaining ground as it allows design decisions in an early stages of development therefore reducing costs, these tools are also gaining in accuracy. We used morphological filter as a preprocessing stage for the Shen-Castan edge detector. Starting C code the high level estimation tool produces RTL level circuits and using power and energy consumption models based on a hardware database (generic ASIC in our case) it produces reports about Area, Power and Energy consumption, an estimation of performance is also possible.","PeriodicalId":432382,"journal":{"name":"2010 7th International Multi- Conference on Systems, Signals and Devices","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134289515","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

Stability analysis of a two-cell DC/DC converter using a dynamic time delayed feedback controller 采用动态时滞反馈控制器的双单元DC/DC变换器稳定性分析

2010 7th International Multi- Conference on Systems, Signals and Devices Pub Date : 2010-06-27 DOI: 10.1109/SSD.2010.5585543

K. Koubaâ, M. Feki, A. El Aroudi, B. Robert, N. Derbel

引用次数: 2

Detection and localization of cable faults by time and frequency domain measurements 基于时域和频域测量的电缆故障检测与定位

2010 7th International Multi- Conference on Systems, Signals and Devices Pub Date : 2010-06-27 DOI: 10.1109/SSD.2010.5585506

Qinghai Shi, Uwe Troeltzsch, O. Kanoun

引用次数: 57

Optimized fuzzy controller for mobile robot navigation in a cluttered environment 混沌环境下移动机器人导航的优化模糊控制器

2010 7th International Multi- Conference on Systems, Signals and Devices Pub Date : 2010-06-27 DOI: 10.1109/SSD.2010.5585508

Najah Yousfi, C. Rekik, M. Jallouli, N. Derbel

引用次数: 20

Coverage planning in 3G multimedia networks based on Walsh coding 基于Walsh编码的3G多媒体网络覆盖规划

2010 7th International Multi- Conference on Systems, Signals and Devices Pub Date : 2010-06-27 DOI: 10.1109/SSD.2010.5585510

O. Alani, O. Daoud, I. Abu-Isbeih

{"title":"Coverage planning in 3G multimedia networks based on Walsh coding","authors":"O. Alani, O. Daoud, I. Abu-Isbeih","doi":"10.1109/SSD.2010.5585510","DOIUrl":"https://doi.org/10.1109/SSD.2010.5585510","url":null,"abstract":"Capacity in Wideband Code Multiple Access (WCDMA) systems is interference limited, it is also strongly linked with coverage. The greater the level of influx of users within the cell, the higher the interference and hence the lower the cell coverage becomes and vice versa. This is called Cell Breathing. In this paper a Walsh coding is used as a precoding stage to the Multiple-Input Multiple Output-Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system. The results of this work are compared with a conventional work that is based on convolutional coding. This is in order to check its fitness to the current system structure and the enhancement of the Eb/No, which will directly result in a better cell coverage and continued reliable services for the area of the cell as the load increases. Based on the simulation results, Walsh coding shows a slight improvement of complemetary cumulative distribution function (CCDF). As a consiquence, the MIMO-OFDM systems' performance is improved comparing with the covolutionally coded MIMO-OFDM system. Thus, not only the Peak-to-Average Power Ratio (PAPR) is saved, but also the frequency spectrum efficiency is improved.","PeriodicalId":432382,"journal":{"name":"2010 7th International Multi- Conference on Systems, Signals and Devices","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124378399","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: 1

Wavelet in conjunction with Neural Network method for speech enhancement quality evaluation 将小波结合神经网络方法用于语音增强质量评价

2010 7th International Multi- Conference on Systems, Signals and Devices Pub Date : 2010-06-27 DOI: 10.1109/SSD.2010.5585507

K. Daqrouq, G. Amer

引用次数: 0

Neural approaches for modelling nonlinear systems 非线性系统建模的神经方法

2010 7th International Multi- Conference on Systems, Signals and Devices Pub Date : 2010-06-27 DOI: 10.1109/SSD.2010.5585550

Amina Turki, M. Chtourou, M. Djemel

引用次数: 4

An efficient pipeline execution of H.264/AVC intra 4×4 frame design 高效流水线执行H.264/AVC帧内4×4帧设计

2010 7th International Multi- Conference on Systems, Signals and Devices Pub Date : 2010-06-27 DOI: 10.1109/SSD.2010.5585524

Smaoui Soulef, H. Loukil, A. Ben Atitallah, N. Masmoudi

{"title":"An efficient pipeline execution of H.264/AVC intra 4×4 frame design","authors":"Smaoui Soulef, H. Loukil, A. Ben Atitallah, N. Masmoudi","doi":"10.1109/SSD.2010.5585524","DOIUrl":"https://doi.org/10.1109/SSD.2010.5585524","url":null,"abstract":"In this paper, we present an implementation of an optimized H.264 intra 4×4 algorithm in order to reduce the time of the intra 4×4 process. However the source of waste time in conventional architecture of intra 4×4 is the serialization of intra prediction and reconstruction of sixteen 4×4 blocks in one macroblock and the intra prediction of the current 4×4 block cannot be performed before the reconstruction of the previous 4×4 block. Therefore, for a high speed implementation we replaced the conventional one by a pipelined architecture while maintaining consistency with the standard. So we have studied ten alternative scanning orders based on rearranging order of intra 4×4 and we choose the best one which reduce dependencies between consecutively executed blocks without performance degradation. This order is implemented by a pipelined architecture using VHDL language. The VHDL code is verified to work at 100 MHz in an ALTERA Stratix II EP2S60F1020C3 FPGA. As a result, the processing time is reduced by 31.25% compared to the conventional implementation. So, it can be a good solution for real-time video application. The H.264 intra 4×4 hardware and software are demonstrated to work together on ALTERA NIOS-II development board with Stratix II EP2S60F1020C3 FPGA.","PeriodicalId":432382,"journal":{"name":"2010 7th International Multi- Conference on Systems, Signals and Devices","volume":"2018 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132938908","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