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Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555)最新文献

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Performance of turbo coded multicarrier CDMA with iterative multiuser detection and decoding 具有迭代多用户检测和解码的turbo编码多载波CDMA性能
Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555) Pub Date : 2001-05-13 DOI: 10.1109/CCECE.2001.933667
P. Kafle, A. Sesay
{"title":"Performance of turbo coded multicarrier CDMA with iterative multiuser detection and decoding","authors":"P. Kafle, A. Sesay","doi":"10.1109/CCECE.2001.933667","DOIUrl":"https://doi.org/10.1109/CCECE.2001.933667","url":null,"abstract":"The performance of a turbo coded MC-CDMA uplink with iterative multiuser detection is evaluated. Optimal likelihood ratios are computed based on the maximum a posteriori criterion using the multiuser signal structure and a priori information of code bits of all other users available from channel decoders. Combining turbo coding and multiuser detection in MC-CDMA has shown performance close to the single user bound with a few iterations of joint detection and decoding. Additionally, a suboptimal approach using soft interference cancellation is also implemented for the uplink transmission and compared with the conventional methods. Simulation results are presented in a Rayleigh multipath fading environment for a typical data transmission scheme.","PeriodicalId":184523,"journal":{"name":"Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129029541","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
Spatio-temporal equalization and multiuser detection for DS-CDMA systems: a semi-blind approach DS-CDMA系统的时空均衡和多用户检测:半盲方法
Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555) Pub Date : 2001-05-13 DOI: 10.1109/CCECE.2001.933646
R. Pacheco, D. Hatzinakos
{"title":"Spatio-temporal equalization and multiuser detection for DS-CDMA systems: a semi-blind approach","authors":"R. Pacheco, D. Hatzinakos","doi":"10.1109/CCECE.2001.933646","DOIUrl":"https://doi.org/10.1109/CCECE.2001.933646","url":null,"abstract":"A novel strategy for semi-blind spatio-temporal equalization and multiuser detection for short-burst asynchronous DS-CDMA systems is proposed. The technique is based on first performing channel identification (through a semi-blind subspace-based algorithm) as an aid for semi-blind equalization (via the constant modulus algorithm (CMA)). This two step process allows us to improve upon the traditional training-based least squares (LS) estimator by adding the constant modulus and cyclostationary properties of communication signals. Simulation results comparing the performance of our algorithm with regularized LS estimators (both training-based and semi-blind) for different amounts of spatial-diversity, number of active users and burst lengths indicate a significant reduction in the required number of training symbols. Application of this work is in the reverse-link of third generation DS-CDMA systems.","PeriodicalId":184523,"journal":{"name":"Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129077657","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
Orientational coherence metrics: classification of colonic cancer images based on human form perception 定向相干度量:基于人体形态感知的结肠癌图像分类
Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555) Pub Date : 2001-05-13 DOI: 10.1109/CCECE.2001.933655
A. Todman, R. Naguib, M. Bennett
{"title":"Orientational coherence metrics: classification of colonic cancer images based on human form perception","authors":"A. Todman, R. Naguib, M. Bennett","doi":"10.1109/CCECE.2001.933655","DOIUrl":"https://doi.org/10.1109/CCECE.2001.933655","url":null,"abstract":"A number of quantitative techniques for the analysis of histopathological images used in the diagnosis of colonic cancer have been researched in the literature. While these methods have led to significant advances in the development of automated techniques, manual processing by a clinical expert remains the standard against which results are assessed. Here we explicitly attempt to build our understanding of human form perception, implemented at a neural level, into metrics that give us a measure of the extent to which the structure in an image displays a coherent orientational specificity. We describe the derivation of these metrics and consider their application to typical images of normal colon, dysplastic specimens, and moderately and poorly differentiated adenocarcinoma of colon. Preliminary results evaluating the effectiveness of the total activation ratio and the orthogonal activation ratio suggest that they are capable of separating images of normal colon tissue from those of moderately and poorly differentiated adenocarcinoma of colon.","PeriodicalId":184523,"journal":{"name":"Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127631287","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
A new transformed input-domain ANFIS for highly nonlinear system modeling and prediction 一种新的用于高度非线性系统建模和预测的转换输入域ANFIS
Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555) Pub Date : 2001-05-13 DOI: 10.1109/CCECE.2001.933761
E. M. Abdelrahim, T. Yahagi
{"title":"A new transformed input-domain ANFIS for highly nonlinear system modeling and prediction","authors":"E. M. Abdelrahim, T. Yahagi","doi":"10.1109/CCECE.2001.933761","DOIUrl":"https://doi.org/10.1109/CCECE.2001.933761","url":null,"abstract":"In two or more-dimensional systems where the components of the sample data are strongly correlated, it is not proper to divide the input space into several subspaces without considering the correlation. In this paper, we propose the usage of the method of principal component in order to uncorrelate and remove any redundancy from the input space or the adaptive-neuro fuzzy inference systems (ANFIS). This leads to an effective partition of the input space to the fuzzy model and significantly reduces the modeling error. A computer simulation for three frequently used benchmark problems shows that ANFIS with the uncorrelation process performs better than the original ANFIS.","PeriodicalId":184523,"journal":{"name":"Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128776752","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: 21
A new approach to voltage and harmonic compensation 一种电压谐波补偿的新方法
Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555) Pub Date : 2001-05-13 DOI: 10.1109/CCECE.2001.933535
T. Kandil, J. Quaicoe
{"title":"A new approach to voltage and harmonic compensation","authors":"T. Kandil, J. Quaicoe","doi":"10.1109/CCECE.2001.933535","DOIUrl":"https://doi.org/10.1109/CCECE.2001.933535","url":null,"abstract":"This paper presents a novel compensation scheme based on two active filters to improve power quality in distribution networks. The scheme provides voltage compensation at the load for source voltage sags, and swell, as well as minimizing the impact of the load harmonics on the distribution network. The topology and control principles for the compensation system are described and the implementation of the control strategy for the voltage source inverters in the active filters is presented. Simulation results, based on SIMULINK modeling of the compensation scheme are presented in the paper. It is shown that the proposed scheme is simple, and capable of maintaining constant load voltage for extreme supply voltage sag and swell, and of decoupling the load harmonics from the supply for nonlinear loads.","PeriodicalId":184523,"journal":{"name":"Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126899830","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: 6
Sliding mode control of 3-phase 3-wire shunt active filter in the dq frame dq框架中三相三线并联有源滤波器的滑模控制
Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555) Pub Date : 2001-05-13 DOI: 10.1109/CCECE.2001.933538
N. Mendalek, K. Al-haddad, F. Fnaiech, L. Dessaint
{"title":"Sliding mode control of 3-phase 3-wire shunt active filter in the dq frame","authors":"N. Mendalek, K. Al-haddad, F. Fnaiech, L. Dessaint","doi":"10.1109/CCECE.2001.933538","DOIUrl":"https://doi.org/10.1109/CCECE.2001.933538","url":null,"abstract":"In this paper a sliding mode approach is developed to control a three-phase three-wire voltage source inverter operating as a shunt active power filter. The novelty of the proposed approach is that the sliding mode switching functions are chosen in such a way that the multivariable coupled system is controlled as a whole. There is hence no need to divide the system model, which is developed in the synchronous 'dq' reference frame into two separate loops. Furthermore the proposed control strategy allows a better stability and robustness over a wide range of operation. Simulation results show the validity of the performances considered theoretically for the compensations required by the shunt active filter.","PeriodicalId":184523,"journal":{"name":"Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121574730","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: 32
Severe storm cell classification using support vector machines and radial basis function approaches 基于支持向量机和径向基函数方法的强风暴单体分类
Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555) Pub Date : 2001-05-13 DOI: 10.1109/CCECE.2001.933663
L. Ramirez, W. Pedrycz, N. Pizzi
{"title":"Severe storm cell classification using support vector machines and radial basis function approaches","authors":"L. Ramirez, W. Pedrycz, N. Pizzi","doi":"10.1109/CCECE.2001.933663","DOIUrl":"https://doi.org/10.1109/CCECE.2001.933663","url":null,"abstract":"Meteorological volumetric data are used to detect thunderstorms that are the cause of most of the summer severe weathers. There are systems that may convert the volumetric data into a set of derived products. Based on these derived features, this work compares three classifiers to determine which approach will best classify a storm cell data set coming from Environment Canada. The criterion for comparison is the accuracy in the classification over a testing set. The three approaches compared are the support vector machine (SVM) classifier, with radial basis function (RBF) kernel; the classic RBF classifier, with the centres found using the orthogonal least squares approach; and the hybrid RBF, with the centres corresponding to the support vectors found using the SVM approach. The results show that the SVM approach is the best of these approaches, in terms of accuracy, for the storm cell classification.","PeriodicalId":184523,"journal":{"name":"Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116062898","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 method of the electromagnetic simulation of 3D microwave integrated circuits 一种三维微波集成电路电磁仿真新方法
Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555) Pub Date : 2001-05-13 DOI: 10.1109/CCECE.2001.933683
Y. Ke, M. Yu, June Chen, J. Dai
{"title":"A new method of the electromagnetic simulation of 3D microwave integrated circuits","authors":"Y. Ke, M. Yu, June Chen, J. Dai","doi":"10.1109/CCECE.2001.933683","DOIUrl":"https://doi.org/10.1109/CCECE.2001.933683","url":null,"abstract":"A new method of electromagnetic simulation of three-dimension microwave integrated circuits (3DMIC) is proposed in this paper. Combining the theory of complex images with the moment method, the model for electromagnetic simulation of 3DMIC is set up. Real 3DMICs are simulated by the software of electromagnetic simulation. The results show the model is effective and applied.","PeriodicalId":184523,"journal":{"name":"Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121744096","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
Competing ICA techniques in biomedical signal analysis 生物医学信号分析中相互竞争的ICA技术
Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555) Pub Date : 2001-05-13 DOI: 10.1109/CCECE.2001.933577
M. Potter, W. Kinsner
{"title":"Competing ICA techniques in biomedical signal analysis","authors":"M. Potter, W. Kinsner","doi":"10.1109/CCECE.2001.933577","DOIUrl":"https://doi.org/10.1109/CCECE.2001.933577","url":null,"abstract":"We present the background for the statistical decomposition of a signal called independent component analysis (ICA) and survey its application to blind source separation (BSS). We review principal component analysis (PCA), and gradient and cumulant ICA techniques for the complete noiseless BSS problem (more sensors than sources). Results for noisy systems are also discussed. The application of these techniques in the analysis of biomedical signals like EEG, ECG and fMRI, and their early success, is reviewed. We also propose the separation of the current EEG and ECG electrical recordings into independent brain (iEEG) and heart signals (iECG) in order to provide better signals for compression, browsability, and noninvasive medical diagnosis.","PeriodicalId":184523,"journal":{"name":"Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131498056","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
Volume forces in Roebel bars inside slots, forces at the boundary of the slot-a closer view on electromagnetic origin and mechanical consequences 槽内罗贝尔棒中的体积力，槽边界上的力——对电磁起源和机械后果的更近距离观察
Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555) Pub Date : 2001-05-13 DOI: 10.1109/CCECE.2001.933745
G. Clzristian, K. Hansjorg
{"title":"Volume forces in Roebel bars inside slots, forces at the boundary of the slot-a closer view on electromagnetic origin and mechanical consequences","authors":"G. Clzristian, K. Hansjorg","doi":"10.1109/CCECE.2001.933745","DOIUrl":"https://doi.org/10.1109/CCECE.2001.933745","url":null,"abstract":"The interaction between force distributions of magnetic origin and mechanical deformations is one of the most important applications in the design of electrical machines. An analytical and a numerical analysis describes the complex mechanical influence of material characteristics of which the Roebel bars are built.","PeriodicalId":184523,"journal":{"name":"Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128086863","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
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