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CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings最新文献

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Combined error detection and error concealment for MPEG2 over ATM 基于ATM的MPEG2联合错误检测和错误隐藏
CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings Pub Date : 1997-05-25 DOI: 10.1109/CCECE.1997.614809
V. Papadakis, T. Le-Ngoc, W. Lynch
{"title":"Combined error detection and error concealment for MPEG2 over ATM","authors":"V. Papadakis, T. Le-Ngoc, W. Lynch","doi":"10.1109/CCECE.1997.614809","DOIUrl":"https://doi.org/10.1109/CCECE.1997.614809","url":null,"abstract":"We study error control for an MPEG2 digital video compression scheme. The compressed video is transmitted over an asynchronous transfer mode (ATM) network. We propose to combine error control coding with error concealment. Specifically we use classical error detection to locate errors in the compressed domain, translate this information to the uncompressed domain and then use standard error concealment in the error locations. The solving of the error location problem in this way is the main contribution of this work.","PeriodicalId":359446,"journal":{"name":"CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114233791","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 voiceband QAM constellation discrimination technique 一种新的语音波段QAM星座识别技术
CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings Pub Date : 1997-05-25 DOI: 10.1109/CCECE.1997.614826
B. Cockburn, R. Hang
{"title":"A novel voiceband QAM constellation discrimination technique","authors":"B. Cockburn, R. Hang","doi":"10.1109/CCECE.1997.614826","DOIUrl":"https://doi.org/10.1109/CCECE.1997.614826","url":null,"abstract":"We describe a novel technique for discriminating between two or more voiceband QAM signals that have identical carrier frequencies and symbol rates but different constellations. The characteristics of the expected signal classes are stored in the form of histograms that record the frequencies of all possible amplitude changes and phase changes of subsequent symbols. The histogram of a received signal of unknown class is cross-correlated with all the stored histograms. The resulting scores are combined using a discriminant function to yield a classification decision. The new QAM discrimination method may offer several advantages over existing methods due to the fact that the classification decisions are based on a large number of symbol to symbol changes. Specifically, the relative nature of the symbol to symbol measurements and the finite bin sizes used in the histograms make the proposed method substantially immune to receiver errors related to carrier recovery, symbol timing recovery, channel equalization, and channel noise.","PeriodicalId":359446,"journal":{"name":"CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings","volume":"36 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113956575","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
Vector directional filters: An overview 矢量方向过滤器:概述
CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings Pub Date : 1997-05-25 DOI: 10.1109/CCECE.1997.614801
K. Plataniotis, D. Androutsos, A. Venetsanopoulos
{"title":"Vector directional filters: An overview","authors":"K. Plataniotis, D. Androutsos, A. Venetsanopoulos","doi":"10.1109/CCECE.1997.614801","DOIUrl":"https://doi.org/10.1109/CCECE.1997.614801","url":null,"abstract":"Processing of colour image data using directional information has received increased attention lately due to the introduction of the vector directional filters. The objective of this paper is to survey the different vector directional filters already in use focusing on their similarities and differences. Simulation studies involving colour images are used to assess the performance of the different vector directional filters, and to compare them with other commonly used nonlinear filters.","PeriodicalId":359446,"journal":{"name":"CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131420002","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
Acceptable direct current in three-phase power transformers: comparative analysis 三相电力变压器可接受直流电:比较分析
CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings Pub Date : 1997-05-25 DOI: 10.1109/CCECE.1997.614814
P. Picher, L. Bolduc, G. Olivier
{"title":"Acceptable direct current in three-phase power transformers: comparative analysis","authors":"P. Picher, L. Bolduc, G. Olivier","doi":"10.1109/CCECE.1997.614814","DOIUrl":"https://doi.org/10.1109/CCECE.1997.614814","url":null,"abstract":"This paper presents a comparative analysis of the temperature rise in three-phase core-form and shell-form power transformers in the presence of direct current. The temperature-rise assessment is compared on the basis of direct-current injection tests in single-phase core-form transformers, with a nominal voltage rating of 735 kV and nominal power ratings of 370 MVA and 550 MVA. The theoretical analysis of the saturation of three-phase transformers in the presence of direct current is based on the study of their magnetic circuit. The principle of duality was applied to obtain equivalent electric circuits simulated using the Electromagnetic Transients Program (EMTP) and validated using experimental results.","PeriodicalId":359446,"journal":{"name":"CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133937299","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 VLSI architecture for image reconstruction 一种用于图像重建的VLSI架构
CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings Pub Date : 1997-05-25 DOI: 10.1109/CCECE.1997.608281
Carlos A. P. S. Martins, S. T. Kofuji, J. A. Zuffo, E. Moreno
{"title":"A VLSI architecture for image reconstruction","authors":"Carlos A. P. S. Martins, S. T. Kofuji, J. A. Zuffo, E. Moreno","doi":"10.1109/CCECE.1997.608281","DOIUrl":"https://doi.org/10.1109/CCECE.1997.608281","url":null,"abstract":"In this paper we propose a VLSI architecture for an image reconstructor. The architecture implements in hardware the Two Dimensional Normalized Sampled Finite Sinc Reconstructor (NSFSR 2-D) reconstruction technique. Based on validation results, we conclude the proposed architecture implements correctly the NSFSR 2-D and is optimized in performance when compared with a software-based implementation.","PeriodicalId":359446,"journal":{"name":"CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132343330","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
True causes of jagged effect in image display raster devices: reconstruction error 图像显示光栅器件出现锯齿效应的真正原因:重构误差
CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings Pub Date : 1997-05-25 DOI: 10.1109/CCECE.1997.608331
Carlos A. P. S. Martins, S. T. Kofuji, J. A. Zuffo, E. Moreno
{"title":"True causes of jagged effect in image display raster devices: reconstruction error","authors":"Carlos A. P. S. Martins, S. T. Kofuji, J. A. Zuffo, E. Moreno","doi":"10.1109/CCECE.1997.608331","DOIUrl":"https://doi.org/10.1109/CCECE.1997.608331","url":null,"abstract":"This paper analyzes the jagged effect that occurs in image display raster devices. Our main goal is to identify the true causes of the jagged effect, and the initial hypothesis is that between sampling and reconstruction errors the latter is the only cause. We conclude that reconstruction is the only cause of the jagged effect.","PeriodicalId":359446,"journal":{"name":"CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133864938","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
Review of electric load forecasting methods 电力负荷预测方法综述
CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings Pub Date : 1997-05-25 DOI: 10.1109/CCECE.1997.614846
H. Temraz, M. Salama, A. Chikhani
{"title":"Review of electric load forecasting methods","authors":"H. Temraz, M. Salama, A. Chikhani","doi":"10.1109/CCECE.1997.614846","DOIUrl":"https://doi.org/10.1109/CCECE.1997.614846","url":null,"abstract":"The different available load forecasting techniques can be classified according to the type of load data pattern, into three classes: (1) stationary; (2) nonstationary; and (3) nonstationary, seasonal and cyclical techniques. The criterion is divided into three stages: (1) identification; (2) estimation; and (3) diagnostic checking. The purpose of the identification stage is to ascertain the techniques(s) that appear to hold more promise for adequately describing a given data set. The paper presents an algorithmic procedure for selecting and constructing the most appropriate electric load forecasting model. From this review, it is clear that models for the selection and construction criteria are essential for a proper forecasting model.","PeriodicalId":359446,"journal":{"name":"CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings","volume":"23 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115525033","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
Power system stabilizing control using variable series capacitor based on H/sup /spl infin// control theory considering AVR and governor 基于H/sup /spl / infin//控制理论，考虑AVR和调速器的可变串联电容的电力系统稳定控制
CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings Pub Date : 1997-05-25 DOI: 10.1109/CCECE.1997.614785
G. Fujita, R. Yokoyama, T. Niimura, D. Makita, S. Takeuchi, G. Shirai
{"title":"Power system stabilizing control using variable series capacitor based on H/sup /spl infin// control theory considering AVR and governor","authors":"G. Fujita, R. Yokoyama, T. Niimura, D. Makita, S. Takeuchi, G. Shirai","doi":"10.1109/CCECE.1997.614785","DOIUrl":"https://doi.org/10.1109/CCECE.1997.614785","url":null,"abstract":"With the progress of power electronics, power system control systems using flexible AC transmission systems (FACTS) have been eagerly studied. Variable series capacitor (VSrC) for power system stabilization control is a typical application. For effective control of VSrC, the optimal control theory has been applied. However, H/sup /spl infin// control theory is expected to be more robust than the optimal control, because there are uncertain parameter changes and various disturbances in power systems. In this paper, the authors apply H/sup /spl infin// control theory to the power system stabilization control including the characteristics of conventional equipment such as AVR and governor. VSrC equipment is integrated into the power system stabilization control and its effect of enhancing stabilization was investigated. Numerical analyses have been done on a power system model to demonstrate the effectiveness of the proposed control scheme. Encouraging results have been obtained for H/sup /spl infin// control of VSrC through the simulation.","PeriodicalId":359446,"journal":{"name":"CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114213395","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
Hybrid acquisition scheme for CDMA systems: a new perspective CDMA系统的混合采集方案:一个新的视角
CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings Pub Date : 1997-05-25 DOI: 10.1109/CCECE.1997.608263
V. Doradla, A. Elhakeem
{"title":"Hybrid acquisition scheme for CDMA systems: a new perspective","authors":"V. Doradla, A. Elhakeem","doi":"10.1109/CCECE.1997.608263","DOIUrl":"https://doi.org/10.1109/CCECE.1997.608263","url":null,"abstract":"A new hybrid search scheme for the initial acquisition of a long spread spectrum code composed of shorter concatenated signature codes is introduced. The new search scheme inherently contains a verification mode, thus eliminating the need of a separate verification process. We introduce a new concatenated signature coding and a new parallel acquisition scheme. Simulation results of the performance of the scheme in a multiple access environment is also presented.","PeriodicalId":359446,"journal":{"name":"CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings","volume":"189 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114554860","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
Object-oriented design of human-machine interface for substation integration systems 变电站集成系统人机界面面向对象设计
CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings Pub Date : 1997-05-25 DOI: 10.1109/CCECE.1997.608245
A. Apostolov, S. Monnier
{"title":"Object-oriented design of human-machine interface for substation integration systems","authors":"A. Apostolov, S. Monnier","doi":"10.1109/CCECE.1997.608245","DOIUrl":"https://doi.org/10.1109/CCECE.1997.608245","url":null,"abstract":"The design of a human machine interface (HMI) for substation integration (SI) systems is a time consuming process because of the numerous possible substation configurations and the different data structures required for transformers, transmission lines, distribution feeders, switches, etc. in the substation. The paper describes the challenges in the design of the HMI for SI systems. Different aspects, such as LAN and WAN interfaces, a real-time and historical database, and a graphical interface are discussed. Object-oriented design and its advantages in the development of HMIs are presented. The object-oriented design tools of the selected HMI software are described. Some examples of power objects and how they function are also shown. Compatibility with RP-3599 and how it can be maintained is also discussed. This is envisioned as a dynamic process with increasing complexity of the models based on the changing requirements from the industry.","PeriodicalId":359446,"journal":{"name":"CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115865109","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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