2009 Second International Conference on Computer and Electrical Engineering最新文献_第6页

GIS and Mobile Query GIS与移动查询

2009 Second International Conference on Computer and Electrical Engineering Pub Date : 2009-12-28 DOI: 10.1109/ICCEE.2009.240

D. Bhattacharyya, D. Chakraborty, S. Bandyopadhyay, Tai-hoon Kim

引用次数: 1

Variable Structure Model Reference Adaptive Control, for Vehicle Automatic Steering System 汽车自动转向系统的变结构模型参考自适应控制

2009 Second International Conference on Computer and Electrical Engineering Pub Date : 2009-12-28 DOI: 10.1109/ICCEE.2009.54

A. K. Mohammadi, M. Saee

引用次数: 4

Improvement of CMOS RF Gain Amplifier Using Differential Circuit Transconductance Linearization 差分电路跨导线性化改进CMOS射频增益放大器

2009 Second International Conference on Computer and Electrical Engineering Pub Date : 2009-12-28 DOI: 10.1109/ICCEE.2009.156

E. Abiri, GholamReza Najibi, S. Najibi

{"title":"Improvement of CMOS RF Gain Amplifier Using Differential Circuit Transconductance Linearization","authors":"E. Abiri, GholamReza Najibi, S. Najibi","doi":"10.1109/ICCEE.2009.156","DOIUrl":"https://doi.org/10.1109/ICCEE.2009.156","url":null,"abstract":"A CMOS RF digitally programmable gain amplifier (RF PGA) is implemented as a part of a low-IF tuner IC using 0.25 and 0.5µm CMOS technology. This is achieved by applying a newly proposed differential circuit (the second derivatives of transconductance) cancellation technique, called the differential multiple gated transistor (DMGTR). In the DMGTR amplifier, linearity is improved by using transconductance linearization which can be achieved by canceling the negative peak value of the main transistor with the positive one in the auxiliary transistor having a different size and gate drive combined in parallel which is properly sized and biased. This enhancement, however, is limited by the distortion originated from the combined influence of and harmonic feedback, which can greatly be reduced by the cascoding MGTR output for the amplifier. By adopting the DMGTR, a low-power highly linear RF PGA is implemented. In this article, we propose a new differential circuit linearity improvement technique, called the differential multiple gated transistor (DMGTR), in order to obtain a low-power highly linear RF PGA. This technique does not lose other performance or consume extra power.","PeriodicalId":343870,"journal":{"name":"2009 Second International Conference on Computer and Electrical Engineering","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131104273","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

Missile Autopilot Design Using Backstepping Approach 基于回溯法的导弹自动驾驶仪设计

2009 Second International Conference on Computer and Electrical Engineering Pub Date : 2009-12-28 DOI: 10.1109/ICCEE.2009.51

D. Lin, Jun-fang Fan

引用次数: 6

Adding Crossover to Extinction-Based Evolutionary Algorithms 在基于灭绝的进化算法中添加交叉

2009 Second International Conference on Computer and Electrical Engineering Pub Date : 2009-12-28 DOI: 10.1109/ICCEE.2009.125

Ahmadreza Ghaffarizadeh, Kamelia Ahmadi, M. Eftekhari

{"title":"Adding Crossover to Extinction-Based Evolutionary Algorithms","authors":"Ahmadreza Ghaffarizadeh, Kamelia Ahmadi, M. Eftekhari","doi":"10.1109/ICCEE.2009.125","DOIUrl":"https://doi.org/10.1109/ICCEE.2009.125","url":null,"abstract":"Extinction-based Evolutionary Algorithms (EEA) have been recently developed as the solutions for the problem of early convergence in multimodal optimization tasks. The reproduction of EEAs is done only by mutation. Moreover, according to recent studies, several attempts have been made to prove rigorously that crossover is essential for typical optimization problems. The results of these researches show the usefulness of applying cross-over operator in solving optimization problems by Evolutionary Algorithms (EA). In this study, the idea of adding crossover operator to EEAs is investigated. Two EEAs which recently have been developed by researchers are implemented in this work namely: Extinction Evolutionary Programming (EEP) and Self-Organized Criticality Extinction (SOCE). Both of these algorithms are modified by adding crossover operator. Finally, modified versions of algorithms and classical ones are compared and contrasted against each other in terms of converegence time and accuracy of optimizazation on several benchmark optimization functions. Results show modified algorithms outperform classical ones in majority of cases. The results confirms the hypothesis that says “crossover is not useful rigorously in all applications”.","PeriodicalId":343870,"journal":{"name":"2009 Second International Conference on Computer and Electrical Engineering","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131538941","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: 11

The Practice of an Automatic Registration System Based on Contour Features and Wavelet Transform for Remote Sensing Images 基于轮廓特征和小波变换的遥感图像自动配准系统的实践

2009 Second International Conference on Computer and Electrical Engineering Pub Date : 2009-12-28 DOI: 10.1109/ICCEE.2009.78

L. Meddeber, N. Berrached, Abdelmalik Taleb-Ahmed

{"title":"The Practice of an Automatic Registration System Based on Contour Features and Wavelet Transform for Remote Sensing Images","authors":"L. Meddeber, N. Berrached, Abdelmalik Taleb-Ahmed","doi":"10.1109/ICCEE.2009.78","DOIUrl":"https://doi.org/10.1109/ICCEE.2009.78","url":null,"abstract":"Image registration is an inevitable problem arising in many image-processing applications whenever two or more images of the same scene have to be compared pixel by pixel. The increased volume of satellite images has reinforced the need for automatic image registration methods. In this paper, two new feature-based approaches to automated image-to-image registration are presented. The characteristic of the first approach is that it combines an invariant moment shape descriptor with improved chain-code matching to establish correspondences between the potentially matched regions detected from the two images. This method works well for image pairs in which the contour information is well preserved. For the registration of the optical images with synthetic aperture radar (SAR) images, we propose another method based on the wavelet transform, this second method uses spectral information of the images and their local wavelet transform modulus maxima to extract a set of control points. The experimental result demonstrates the robustness, efficiency and accuracy of the two algorithms.","PeriodicalId":343870,"journal":{"name":"2009 Second International Conference on Computer and Electrical Engineering","volume":"209 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116517669","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

Modeling and State Feedback Controller of SSSC Based Current Source Converter 基于SSSC的电流源变换器建模与状态反馈控制器

2009 Second International Conference on Computer and Electrical Engineering Pub Date : 2009-12-28 DOI: 10.1109/ICCEE.2009.87

A. Ajami, Mehdi Armaghan

{"title":"Modeling and State Feedback Controller of SSSC Based Current Source Converter","authors":"A. Ajami, Mehdi Armaghan","doi":"10.1109/ICCEE.2009.87","DOIUrl":"https://doi.org/10.1109/ICCEE.2009.87","url":null,"abstract":"Static Synchronous Series Compensator (SSSC) is a series connected FACTS devices. It is able to providing the reactive power compensation of power system. The SSSC injects a series ac voltage to transmission line through a transformer, which leads or lags the line current by 90°, thus emulating a controllable inductive or capacitive reactance. SSSC can be used to reduce the equivalent line impedance and thus enhance the active power transfer capability of the transmission line. SSSC is conventionally realized with a voltage-source converter. In this paper, an SSSC based on the current-source converter topology is proposed. The injected voltage is controlled according to the desired reactive power compensation. The decoupled state-feedback control for the injected voltage with a separated dc current control is applied to the proposed system. The advantages of the proposed scheme include fast dynamic response and high quality of current and voltage waveforms. The proposed SSSC has been simulated using the MATLAB software. The simulation results show that excellent current and voltage waveforms as well as very short response times can be obtained while operating at a low switching frequency. This makes the proposed scheme suitable for high power applications.","PeriodicalId":343870,"journal":{"name":"2009 Second International Conference on Computer and Electrical Engineering","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128044688","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

Performance Evaluation of APK Modulation for Nonlinear Satellite Communication Channel 非线性卫星通信信道APK调制性能评价

2009 Second International Conference on Computer and Electrical Engineering Pub Date : 2009-12-28 DOI: 10.1109/ICCEE.2009.227

Abdussalam Baryun

引用次数: 1

Speaker Recognition Method Based on Phone N-gram Pruning and KPCA 基于电话n图剪枝和KPCA的说话人识别方法

2009 Second International Conference on Computer and Electrical Engineering Pub Date : 2009-12-28 DOI: 10.1109/ICCEE.2009.21

Hongge Yao, Wu Guo

引用次数: 0

Pathology of Organizations Currently Implementing ITIL in Developing Countries 发展中国家目前实施ITIL的组织病理学

2009 Second International Conference on Computer and Electrical Engineering Pub Date : 2009-12-28 DOI: 10.1109/ICCEE.2009.260

S. Ghayekhloo, M. Sedighi, R. Nassiri, G. L. Shabgahi, H. K. Tirkolaei

引用次数: 8