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[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems最新文献

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Computer aided analysis and design of lumped/distributed microstrip networks in inhomogeneous media 非均匀介质中集总/分布微带网络的计算机辅助分析与设计
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.251950
M. A. Nassef, E. A. Hosny, M. Sobhy
{"title":"Computer aided analysis and design of lumped/distributed microstrip networks in inhomogeneous media","authors":"M. A. Nassef, E. A. Hosny, M. Sobhy","doi":"10.1109/MWSCAS.1991.251950","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.251950","url":null,"abstract":"Explicit forms of the state and output equations of lumped/distributed networks in inhomogeneous media are derived. No restriction on the network topology is required. Multicoupled structures in inhomogeneous media occur frequently in microwave circuits, especially in integrated circuits. The effect of different mode propagation can easily be taken into consideration. Illustrative examples of microstrip circuits are analyzed. The derived formulas have been incorporated in computer-aided procedures for the analysis of lumped/distributed networks in the frequency and time domain. The developed program incorporating the state and output equations can deal with any number of coupled transmission lines in inhomogeneous media.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"95 1","pages":"1069-1072 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79177623","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
Design of wide-band switched-capacitor filters with arbitrary and linear phase responses 具有任意和线性相位响应的宽带开关电容滤波器的设计
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.251940
H. Baher, S. Zhuang
{"title":"Design of wide-band switched-capacitor filters with arbitrary and linear phase responses","authors":"H. Baher, S. Zhuang","doi":"10.1109/MWSCAS.1991.251940","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.251940","url":null,"abstract":"A novel technique for the design of switched-capacitor bandpass filters with amplitude selectivity and phase linearity in a significant portion of the passband is presented. The technique uses low-sensitivity structures employing lossless-discrete integrator building blocks. The design of a sixth-order bandpass filter is considered as an example.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"43 1","pages":"1047-1048 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76396790","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
Frequency domain characterization of two time scale sampled data systems 两个时间尺度采样数据系统的频域特性
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.252210
H. Oloomi
{"title":"Frequency domain characterization of two time scale sampled data systems","authors":"H. Oloomi","doi":"10.1109/MWSCAS.1991.252210","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252210","url":null,"abstract":"Sampled data systems having two frequency scale behavior are introduced. Properties of these systems are characterized in terms of their transfer matrices. An approximation theorem is given by which a two frequency scale sampled data (TFS-SD) system can be approximated in terms of its low and high frequency parts. The relationship between a TFS-SD system and its time domain counterpart, a two time scale sampled data (TTS-SD) system, is established.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"67 1","pages":"467-470 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79543583","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
Performance analysis of a new implementation for the frequency-domain LMS adaptive filter 一种新的频域LMS自适应滤波器实现方法的性能分析
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.252205
A. Ogunfunmi
{"title":"Performance analysis of a new implementation for the frequency-domain LMS adaptive filter","authors":"A. Ogunfunmi","doi":"10.1109/MWSCAS.1991.252205","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252205","url":null,"abstract":"The author analyzes the performance of a novel implementation of the frequency-domain LMS (least mean square) adaptive filter. This implementation is based on using the LMS adaptive algorithm to implement the DFT (discrete Fourier transform) part of the frequency-domain LMS adaptive filter. Numerical issues are also discussed. This is significant in this implementation because the performance of the frequency-domain LMS adaptive filter is dependent on the accuracy of the DFT computation obtained by using the LMS algorithm. The effects of inaccurate transform (DFT) computation of the performance of the transform-domain LMS adaptive filter are analyzed. The author also used a linear filter model to explain some of the observed nonideal effects. This indicated that, for large filter lengths, the accuracy of the DFTs computed diminishes.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"100 1","pages":"501-504 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77444959","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
Accurate ARMA signal identification-empirical results 精确的ARMA信号识别-经验结果
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.252138
L. D. Paarmann, M. Korenberg
{"title":"Accurate ARMA signal identification-empirical results","authors":"L. D. Paarmann, M. Korenberg","doi":"10.1109/MWSCAS.1991.252138","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252138","url":null,"abstract":"A recent ARMA (autoregressive moving average) algorithm for the identification of stochastic systems and signal models is discussed, and empirical results are given. The ARMA identifier discussed includes inherent order estimation. In comparison with other ARMA stochastic system identifiers, the new procedure has been empirically shown to yield highly accurate, unbiased results.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"40 1","pages":"110-113 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77550537","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
Enhancement of transmission characteristics in elliptic filter design 椭圆滤波器设计中传输特性的增强
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.251953
H.K. Kim
{"title":"Enhancement of transmission characteristics in elliptic filter design","authors":"H.K. Kim","doi":"10.1109/MWSCAS.1991.251953","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.251953","url":null,"abstract":"In filter design, the delay characteristic becomes flatter as the values of the pole-Q decrease. For elliptic filters there exists a method by which one may continuously decrease Q values by increasing a single parameter within the design specifications. It is demonstrated that the pole Q can be lowered by increasing omega /sub s/ (the stopband frequency where the stopband begins). As a consequence the step response in the time domain as well as the delay characteristic in the frequency domain improves.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"27 2","pages":"1057-1060 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91454521","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
Performance review of the switched reluctance motor drives 开关磁阻电机驱动器的性能评价
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.252150
H. Moghbelli, M. Rashid
{"title":"Performance review of the switched reluctance motor drives","authors":"H. Moghbelli, M. Rashid","doi":"10.1109/MWSCAS.1991.252150","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252150","url":null,"abstract":"The authors survey the literature on the switched reluctance motor (SRM) and drives. They present a classification scheme for the SRM drives that permits the SRM to be categorized based on the characteristics of motor design, controller circuit, performance, and applications. This performance review provides useful guidelines for comparing the SRM with different AC motor drives.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"41 1","pages":"162-165 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87716348","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
A resistive mesh analysis method for parallel path searching 一种并行路径搜索的电阻网格分析方法
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.252085
Gui-Xin Cheng, M. Ikegami, M. Tanaka
{"title":"A resistive mesh analysis method for parallel path searching","authors":"Gui-Xin Cheng, M. Ikegami, M. Tanaka","doi":"10.1109/MWSCAS.1991.252085","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252085","url":null,"abstract":"A novel constructive parallel path searching method is proposed. This method is based on selecting local maximum current in unity resistive mesh (URM) whose principle is to obtain the field expressed with the Poisson equation. A bottleneck detecting approach based on the proposed method is presented. The proposed method has been applied to the problems of LSI routing, communication path routing of a processor array, and path searching for a robot. Experimental results showed the efficiency of the proposed method.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"21 1","pages":"827-830 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73545212","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: 13
Performance of a high-precision digital tuning algorithm 一种高精度数字调谐算法的性能
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.252170
C. Yu, W. Bliss, R. Geiger
{"title":"Performance of a high-precision digital tuning algorithm","authors":"C. Yu, W. Bliss, R. Geiger","doi":"10.1109/MWSCAS.1991.252170","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252170","url":null,"abstract":"An iterative digital tuning algorithm has been reviewed and simulated extensively, and its functionality has been investigated experimentally. This tuning algorithm is applicable to digitally programmable continuous-time filters. The algorithm estimates filter characterization parameters based on a system identification method and calculates control parameters for tuning adjustments. Extensive simulations show that this algorithm converges to a solution within 10 iterations in most cases, even in the presence of various measurement errors, parameter variations, and overordering effects. This algorithm is very insensitive to initial parameter variations, as good results are obtained even with 30% parameter error. This algorithm also attains good speed and accuracy in the presence of 5% measurement errors and high overordering effects. Experimental results with a second-order monolithic programmable OTA-C (operational transconductance amplifier and capacitor) integrated circuit filter verify the robustness of the algorithm in tuning continuous-time filters.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"40 1","pages":"356-359 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88802171","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
Analysis of truncation errors in asynchronous sampling of periodic signals 周期信号异步采样中的截断误差分析
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.251937
D. Nyarko, K.A. Stromsmoe
{"title":"Analysis of truncation errors in asynchronous sampling of periodic signals","authors":"D. Nyarko, K.A. Stromsmoe","doi":"10.1109/MWSCAS.1991.251937","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.251937","url":null,"abstract":"It is shown that an end correction can greatly reduce the potential truncation error when asynchronous sampling is used to determine the average value of a periodic waveform. Two processing methods with end correction are considered, and the method employing a modified trapezoidal approach is shown to give the best results.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"37 1","pages":"1117-1120 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88822597","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
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