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China., 1991 International Conference on Circuits and Systems最新文献

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Measurement of low-frequency noise spectrum and computation of its parameters 低频噪声频谱的测量及其参数的计算
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184476
Luo Tao, Xu Yong, Dai Yi-song, Shi Yaowu
{"title":"Measurement of low-frequency noise spectrum and computation of its parameters","authors":"Luo Tao, Xu Yong, Dai Yi-song, Shi Yaowu","doi":"10.1109/CICCAS.1991.184476","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184476","url":null,"abstract":"In this paper, a low-frequency noise spectrum testing system is presented, its measuring range is 0.25 Hz approximately 100 kHz, and accuracy is higher than 4%. Moreover, the white noise level and corner frequency are computed by applying the weighed least square method.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123950070","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
Synthesis of ternary finite automaton 三元有限自动机的综合
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184516
X.X. Chen, X.W. Wu
{"title":"Synthesis of ternary finite automaton","authors":"X.X. Chen, X.W. Wu","doi":"10.1109/CICCAS.1991.184516","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184516","url":null,"abstract":"The authors propose a procedure for synthesis of finite automaton by using ternary master-slave set-state type, JKL-type, D-type and T-type flip-flops. This procedure is different from the previous methods. Here the expression for the excitation inputs and outputs of an automaton are obtained by means of the state-triggered matrix, state-transmission matrix and output matrix instead of plotting K-maps. Since K-maps are not used and the procedure is suitable for program operation on computers, it may be used for the synthesis of the finite automaton with multiple inputs and multiple states.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126102284","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
Distributed matching network synthesis with lossy commensurate lines 具有有损匹配线的分布式匹配网络合成
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184294
Lizhong Zhu
{"title":"Distributed matching network synthesis with lossy commensurate lines","authors":"Lizhong Zhu","doi":"10.1109/CICCAS.1991.184294","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184294","url":null,"abstract":"A useful theorem which extends a previously introduced lossy transformation technique to more general applications is proposed for transformation between distributed lossy and lumped lossless networks. A new computer-aided approach is developed for the synthesis of lossy commensurate line networks with all lines having arbitrary frequency-dependent losses. As an application, a broadband amplifier is designed for monolithic microwave integrated circuits (MMIC's) and its performance is compared with the example.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128496113","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
Property analysis of the equilibria of Hopfield neural networks Hopfield神经网络平衡点的性质分析
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184280
Yaoguang Wang, Zemin Liu
{"title":"Property analysis of the equilibria of Hopfield neural networks","authors":"Yaoguang Wang, Zemin Liu","doi":"10.1109/CICCAS.1991.184280","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184280","url":null,"abstract":"The authors utilize results from the theory of nonlinear networks and systems to analyse the stability properties of various equilibria of analog and discrete Hopfield models. They discuss the relations between the two models and their convergence properties. Some new results are obtained.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127686809","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
Novel high frequency quasi-resonant converter topologies 新型高频准谐振变换器拓扑结构
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184461
Xing-Zhu Zhang, Shi-Peng Huang
{"title":"Novel high frequency quasi-resonant converter topologies","authors":"Xing-Zhu Zhang, Shi-Peng Huang","doi":"10.1109/CICCAS.1991.184461","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184461","url":null,"abstract":"The concept of Nth order quasi-resonant switching cell (QRSC) is introduced and the synthetic technique of Nth order quasi-resonant converters (QRCs) is developed. Using this technique, the authors synthesize 2nd-4th order buck QRCs. 4th order ZVS-QRSC is taken an example to demonstrate how to get corresponding 4th order ZVS-QRC topologies.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116289058","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: 17
A QR decomposition based subspace algorithm for adaptive superresolution spectral estimate
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184304
T. Kong, D. Liang
{"title":"A QR decomposition based subspace algorithm for adaptive superresolution spectral estimate","authors":"T. Kong, D. Liang","doi":"10.1109/CICCAS.1991.184304","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184304","url":null,"abstract":"Eigenstructure based subspace technique is known for good performance, but it requires intensive computations. To overcome this difficulty, the authors present a QR decomposition (QRD) based subspace algorithm for direction of arrival (DOA) estimate. The proposed method takes advantage of the noise-free property of the ideal cross-covariance matrix to generate valid subspace estimate. The columns of the orthogonal matrix Q span the same subspace as the eigenvectors of the auto-covariance matrix. Further, by invariant subspace technique, the authors present a QR-ESPRIT algorithm, which can transform the M-dimension eigenproblem to a k-dimension one. An adaptive version of the proposed QR method is also derived to deal with adaptive spectral estimate, which uses the rank-one update of the last QRD. Required operations are much simpler compared with common QRD procedure.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124139313","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
Analytic analysis and synthesis of semiuniform frequency-dependent lossy broadband matching networks 半均匀频率相关有损宽带匹配网络的分析与综合
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184288
Ming Li, Wu Yong-shi
{"title":"Analytic analysis and synthesis of semiuniform frequency-dependent lossy broadband matching networks","authors":"Ming Li, Wu Yong-shi","doi":"10.1109/CICCAS.1991.184288","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184288","url":null,"abstract":"Semiuniform frequency-dependent lossy networks (for short, FZ/sub R/Z/sub L/Z/sub C/T networks) are analysed analytically in this paper. The realizability conditions of the networks are presented and an approximate analytic synthesis procedure for the FZ/sub R/Z/sub L/Z/sub C/T broadband matching networks is given.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"388 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126742053","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
Moving edges detection in time-varying image sequences 时变图像序列的运动边缘检测
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184349
Wang Yiping, Lu Mingda
{"title":"Moving edges detection in time-varying image sequences","authors":"Wang Yiping, Lu Mingda","doi":"10.1109/CICCAS.1991.184349","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184349","url":null,"abstract":"A new computational paradigm for the detection of moving edges in time-varying image sequences is presented. The frames need not be contiguous. The detector includes both motion and edge detection in a way that improves overall performance.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126464885","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
Processing of signals in their oversampled delta-sigma domain 信号在过采样δ域的处理
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184382
F. Maloberti, P. O'Leary
{"title":"Processing of signals in their oversampled delta-sigma domain","authors":"F. Maloberti, P. O'Leary","doi":"10.1109/CICCAS.1991.184382","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184382","url":null,"abstract":"A non conventional method for the processing of signal is presented. The basic idea is derived from noting that an oversampled (delta sigma) flow represents a signal in two different fashions; an analogue representation since it keeps the signal information in its low frequency range and a digital representation since it is made of a 1 bit high speed bit stream. Simple manipulations of such digital streams will give rise to a suitable processing of their low frequency (analogue) contents. The paper shows how to get some basic functions: addition, subtraction and multiplication; moreover some examples of practical data processing are considered. Significant architectures and results of computer simulations are also presented.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127911405","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: 17
Circuit analysis of a novel loudspeaker system based on linear motor principle 基于直线电机原理的新型扬声器系统电路分析
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184367
S. Leung, T.W.S. Chow, Y.S. Zhu
{"title":"Circuit analysis of a novel loudspeaker system based on linear motor principle","authors":"S. Leung, T.W.S. Chow, Y.S. Zhu","doi":"10.1109/CICCAS.1991.184367","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184367","url":null,"abstract":"This paper presents a novel loudspeaker system with the characteristics of linear drive, low distortion and non-directional acoustic wave propagation. The circuit analysis of the speaker is described and the equivalent circuit of the system based on an electro-mechanical-acoustic analogy is developed.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133582218","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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