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2009 Canadian Conference on Electrical and Computer Engineering最新文献

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PC based multi-phase flow loop sensor calibration 基于PC的多相流回路传感器标定
2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090284
Javier Ortiz, A. Karwal, V. Mašek
{"title":"PC based multi-phase flow loop sensor calibration","authors":"Javier Ortiz, A. Karwal, V. Mašek","doi":"10.1109/CCECE.2009.5090284","DOIUrl":"https://doi.org/10.1109/CCECE.2009.5090284","url":null,"abstract":"A small multi-phase flow loop has been developed to calibrate oil & water mixture composition sensors under various conditions. The loop features two precision gear pumps, piping manifold with a cooler and a gravity based separator. The pumps are controlled by a Linux PC based data acquisition card. This allows for an automated and compact calibration process.","PeriodicalId":153464,"journal":{"name":"2009 Canadian Conference on Electrical and Computer Engineering","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122175360","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
Development of an efficient IGBT simulation model 高效IGBT仿真模型的开发
2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090131
L. Michel, A. Chériti, P. Sicard
{"title":"Development of an efficient IGBT simulation model","authors":"L. Michel, A. Chériti, P. Sicard","doi":"10.1109/CCECE.2009.5090131","DOIUrl":"https://doi.org/10.1109/CCECE.2009.5090131","url":null,"abstract":"We propose, in this paper, the development of an efficient IGBT model especially designed for simulation and the associated free wheeling diode model that can describe the recovery current. Although, the IGBT model can describe the switching mechanism with a good precision, a procedure is presented in order to make this model able to reproduce better switching losses. Both models have the advantage to be configured exclusively from the datasheets and are built as electrical circuits, which can be realized easily in classical simulators.","PeriodicalId":153464,"journal":{"name":"2009 Canadian Conference on Electrical and Computer Engineering","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134404334","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: 10
Discriminative SIFT features for face recognition 判别SIFT特征用于人脸识别
2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090085
A. Majumdar, R. Ward
{"title":"Discriminative SIFT features for face recognition","authors":"A. Majumdar, R. Ward","doi":"10.1109/CCECE.2009.5090085","DOIUrl":"https://doi.org/10.1109/CCECE.2009.5090085","url":null,"abstract":"SIFT (Scale Invariant Feature Transform) features are widely used in object recognition. These features are invariant to changes in scale, 2D translation and rotation transformations. To a limited extent they are also robust to 3D projection transformations. SIFT Features however, are of very high dimension and large number of SIFT features are generated from an image. The large computational effort associated with matching all the SIFT features for recognition tasks, limits its application to face recognition problems. In this work we propose a discriminative ranking of SIFT features that can be used to prune the number of SIFT features for face recognition. Our method checks the number of irrelevant features to be matched thereby reducing the computational complexity. In the process it also increases the recognition accuracy. We show that the reduction in the number of computations is more than 4 times and increase in the recognition accuracy is 1% on average. Experimental results confirm that our proposed recognition method is robust to changes in head pose, illumination, facial expression and partial occlusion.","PeriodicalId":153464,"journal":{"name":"2009 Canadian Conference on Electrical and Computer Engineering","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133456122","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: 51
Scale-Space Random Walks 尺度空间随机漫步
2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090191
Richard Rzeszutek, Thomas F. El-Maraghi, D. Androutsos
{"title":"Scale-Space Random Walks","authors":"Richard Rzeszutek, Thomas F. El-Maraghi, D. Androutsos","doi":"10.1109/CCECE.2009.5090191","DOIUrl":"https://doi.org/10.1109/CCECE.2009.5090191","url":null,"abstract":"The Random Walks image segmentation algorithm provides a fast and effective method for supervised image segmentation. However, Random Walks does not work very well in the presence of noise or texture. Therefore, we propose an augmented version of Random Walks known as “Scale-Space Random Walks” (SSRW) that addresses these problems. Through a minor, though non-trivial, modification to the Random Walks algorithm, we show that the SSRW can produce more accurate segmentations in the presence of noise and texture then the original Random Walks can.","PeriodicalId":153464,"journal":{"name":"2009 Canadian Conference on Electrical and Computer Engineering","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133566240","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: 3
A novel topology of bridge-type superconducting fault current limiter 一种新型桥式超导故障限流器的拓扑结构
2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090132
W. Fei, Bin Wu
{"title":"A novel topology of bridge-type superconducting fault current limiter","authors":"W. Fei, Bin Wu","doi":"10.1109/CCECE.2009.5090132","DOIUrl":"https://doi.org/10.1109/CCECE.2009.5090132","url":null,"abstract":"A new topology of bridge-type SFCL, which can limit not only the rising speed but also the steady state value of fault current, is proposed in this paper. The new SFCL includes a bridge composed of 4 SCRs and 2 diodes, a superconducting coil and an ordinary bypass reactor. In normal status, the bridge works as a rectifier, the voltage across the coil is zero if the current of the coil keeps greater than the peak value of the load current. When a fault occurs, the fault current is limited in the first cycle by the coil, when the fault is detected, the bridge can be controlled working as two bidirectional switches and the coil is inserted in the ac circuit and the steady fault current can also be limited. By adding the bypass reactor, the cost of the new SFCL can be minimized. Parameter design and simulations are presented. The simulation proves the validity of the new SFCL.","PeriodicalId":153464,"journal":{"name":"2009 Canadian Conference on Electrical and Computer Engineering","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115924862","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: 12
Comparison of compensation strategies for shunt active power filter control in unbalanced tree-phase four-wire systems 不平衡三相四线制并联有源滤波控制补偿策略比较
2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090291
M. Ranjbar, M. Masoum, A. Jalilian
{"title":"Comparison of compensation strategies for shunt active power filter control in unbalanced tree-phase four-wire systems","authors":"M. Ranjbar, M. Masoum, A. Jalilian","doi":"10.1109/CCECE.2009.5090291","DOIUrl":"https://doi.org/10.1109/CCECE.2009.5090291","url":null,"abstract":"This paper presents detailed analysis to compare and evaluate the performances of four control strategies for extracting the reference currents of shunt active power filter under distorted and unbalanced source and load conditions. The four controllers are based on instantaneous reactive power (p-q), d-q coordinate formulation (d-q), unity power factor (UPF), and perfect harmonic cancellation (PHC) strategies. Detailed analysis and simulation results (performed with SimulinkMatlab) are used to highlight the advantages and limitations of each control approach.","PeriodicalId":153464,"journal":{"name":"2009 Canadian Conference on Electrical and Computer Engineering","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116478530","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: 22
Power allocation strategy for MIMO system based on beam-nulling 基于波束零化的MIMO系统功率分配策略
2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090230
M. Gheryani, Zhiyuan Wu, Y. Shayan
{"title":"Power allocation strategy for MIMO system based on beam-nulling","authors":"M. Gheryani, Zhiyuan Wu, Y. Shayan","doi":"10.1109/CCECE.2009.5090230","DOIUrl":"https://doi.org/10.1109/CCECE.2009.5090230","url":null,"abstract":"In this paper, we propose a scheme called “beam-nulling” using the same feedback bandwidth as beamforming but with higher capacity. In the beam-nulling scheme, the eigenvector of the weakest subchannel is fed back and then signals are sent over a generated subspace orthogonal to the weakest subchannel. Hence, the scheme can achieve high capacity. The capacities of water-filling, equal power, beamforming and beam-nulling are compared through theoretical analysis and numerical results. It is shown that at medium signal-to-noise ratio, beam-nulling approaches the optimal waterfilling scheme. Additionally, the existing beamforming and new proposed beam-nulling can be extended if more than one eigenvector is available at the transmitter. The new extended schemes are called multi-dimensional (MD) beamforming and MD beam-nulling. Theoretical analysis and numerical results in terms of capacity are also provided to evaluate the new extended schemes.","PeriodicalId":153464,"journal":{"name":"2009 Canadian Conference on Electrical and Computer Engineering","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116844691","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
Application of robust design of a PI controller using guardian maps 基于守护图的PI控制器鲁棒设计的应用
2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090308
P. Jodouin, M. Saad, A. Kaddouri
{"title":"Application of robust design of a PI controller using guardian maps","authors":"P. Jodouin, M. Saad, A. Kaddouri","doi":"10.1109/CCECE.2009.5090308","DOIUrl":"https://doi.org/10.1109/CCECE.2009.5090308","url":null,"abstract":"An application of guardian maps to design a robust Proportional Integral (PI) controller is presented. The PI is used to control a given first order system with known nominal parameters. The guardian maps identify in the s-plane the regions where the application is stable. The objective is to select the controller's parameters so that the closed loop poles are confined to a predetermined region in the s-plane. This region is built to ensure desired performance such as rise time, overshoot, or response time, i.e. it ensures robust performance.","PeriodicalId":153464,"journal":{"name":"2009 Canadian Conference on Electrical and Computer Engineering","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116052420","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
AN ultra low power fault tolerant SRAM design in 90nm CMOS 90nm CMOS超低功耗容错SRAM设计
2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090294
Kuande Wang, Li Chen, Jinsheng Yang
{"title":"AN ultra low power fault tolerant SRAM design in 90nm CMOS","authors":"Kuande Wang, Li Chen, Jinsheng Yang","doi":"10.1109/CCECE.2009.5090294","DOIUrl":"https://doi.org/10.1109/CCECE.2009.5090294","url":null,"abstract":"To mitigate the single-event effect, improve the stability and also maintain the low power characteristic of sub-threshold SRAM, a Dual Interlocked Storage Cell (DICE) based SRAM cell in 90nm CMOS technology was proposed to eliminate the drawback of conventional DICE cell during read operation. In order to make the proposed SRAM cell work under different power supply voltages from 0.3V to 0.6V, an improved replica sense scheme is applied to produce a reference control signal, with which the optimal read time could be achieved. In this paper, a 256 × 8bytes SRAM core was simulated and the operating frequency at VDD = 0.3V is up to 4.7MHz with power dissipation 6.0µW, while it is 45.5MHz at VDD = 0.6V dissipating 140µW. The layout of SRAM core was also done in 90nm CMOS technology.","PeriodicalId":153464,"journal":{"name":"2009 Canadian Conference on Electrical and Computer Engineering","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123642531","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: 10
A new multiple-access method based on FRACTIONAL FOURIER TRANSFORM 一种基于分数阶FOURIER变换的多址方法
2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090250
X. Sha, Rong-hui Wen, X. Qiu
{"title":"A new multiple-access method based on FRACTIONAL FOURIER TRANSFORM","authors":"X. Sha, Rong-hui Wen, X. Qiu","doi":"10.1109/CCECE.2009.5090250","DOIUrl":"https://doi.org/10.1109/CCECE.2009.5090250","url":null,"abstract":"This paper introduces a new multiple-access technique named Frequency Band Width Division Multiple-Access (FBW-DMA). The proposed method processes signal in Fractional Fourier Transform (FrFT) domain to avoid some crucial problems in CDMA, such as high requirement of synchronization and suffering from single-frequency interference generated by other systems. By using chirp signals with different frequency band widths as carriers at the transmitter, the received signal is transformed into corresponding FrFT domain, then the narrow band matching coherent demodulation is used. Simulation results indicate that the proposed FBW-DMA achieves better Bit Error Rate (BER) performances compared with CDMA when serious single-frequency interferences exist, and the BER is lower one or two orders of magnitude.","PeriodicalId":153464,"journal":{"name":"2009 Canadian Conference on Electrical and Computer Engineering","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123221325","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
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