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

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Recursive M-type filter for image processing 用于图像处理的递归m型滤波器
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184486
Cheng Cunxue, Gu Deren
{"title":"Recursive M-type filter for image processing","authors":"Cheng Cunxue, Gu Deren","doi":"10.1109/CICCAS.1991.184486","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184486","url":null,"abstract":"Proposes a class of nonlinear filters-M-type filters, which are based on the M-estimates of location parameters in statistical theory. Moving-window M-filters can be defined starting from M-estimates of location. Then, several modified structures are given. It is shown that recursive M-type filter can perform better than nonrecursive M-type filter, running mean and median filter in white noise suppression, while it can be designed to be comparable to the median filter in edge preservation in the presence of noise. (To suppress impulse noise, the proposed filter generates output with a modified reference output: to reduce calculation complexity, M-type filter with linear FIR substructure is introduced.) Finally, experimental results for one- and two-dimensional signals are presented.<<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":"130529133","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
A reconfigurable equalizer realization 可重构均衡器实现
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184314
Qing Li, Wei Ding
{"title":"A reconfigurable equalizer realization","authors":"Qing Li, Wei Ding","doi":"10.1109/CICCAS.1991.184314","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184314","url":null,"abstract":"Architecture and performance characteristics of an adaptive and programmable line equalizer are described. A digitally reconfigurable filter structure with an operational transconductance amplifier (OTA) is introduced. The versatile implementation of a wide AGC dynamic range and precise and quick adjustment for different conditions and different transmission bit rates in the range from 1kbps to 2mbps is described. The approach taken here is to design a flexible, firmware-definable circuit with universal bit processing, so that it can be applied to a wide range of dissimilar systems in telecommunication networks.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"41 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":"116617404","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
Stabilization and structure optimization of asymmetric neural networks 非对称神经网络的镇定与结构优化
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184336
H. Zeng, Juebang Yu
{"title":"Stabilization and structure optimization of asymmetric neural networks","authors":"H. Zeng, Juebang Yu","doi":"10.1109/CICCAS.1991.184336","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184336","url":null,"abstract":"A new approach for stabilizing asymmetric neural networks is suggested in the present paper. A nonlinear control system is used as the model of the given neural network, then by decomposing the interconnection matrix and by using the deremainder control technique, some asymptotically stable outputs can be attained as the network is driven by prescribed inputs. A structure optimization scheme for the network is also suggested following the same technique.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"67 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":"116677301","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
m3DI: a dynamic configurable multilayer router in the automatic cell layout generation environment m3DI:在自动小区布局生成环境下动态配置的多层路由器
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184507
K. M. Lau, C. Wiley, S. Szygenda
{"title":"m3DI: a dynamic configurable multilayer router in the automatic cell layout generation environment","authors":"K. M. Lau, C. Wiley, S. Szygenda","doi":"10.1109/CICCAS.1991.184507","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184507","url":null,"abstract":"The authors have implemented the 3-2 route scheme, successfully constructing a multilayer router, m3DI. The system is intended to solve the routing problems encountered in the automatic generation of custom cell layouts targeted at GaAs and CMOS technology which require three or more metal layers. The router is a dynamically configurable router which not only can handle the routing at the leaf cell level but also the module level. The router can be configured to handle switch box problems as well as channel problems. Its flexibility and its structured routing scheme allows the designer a choice in the algorithms used for the design process.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"56 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132468395","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
On the models of a class of programmable neural oscillator cell 一类可编程神经振荡器单元的模型
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184339
Xiao Yuan
{"title":"On the models of a class of programmable neural oscillator cell","authors":"Xiao Yuan","doi":"10.1109/CICCAS.1991.184339","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184339","url":null,"abstract":"In this paper, the author develops the hysteresis neural-type oscillator theory which was proposed by R.W. Newcomb et. al. (1983), and introduces three models of a programmable neural-type oscillator. The frequency characteristics of these models are analyzed.<<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":"132803219","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
On cepstrum approach to sequential image matching 倒谱法在序列图像匹配中的应用
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184481
Pengling He, Yuanlong Cai, Dequn Liang
{"title":"On cepstrum approach to sequential image matching","authors":"Pengling He, Yuanlong Cai, Dequn Liang","doi":"10.1109/CICCAS.1991.184481","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184481","url":null,"abstract":"Sequential image matching is a basic problem in image analysis and computer vision. Among the existing methods, there are intensity-based approaches and feature-based approaches, however, there are still some problems with the existing methods. It is hoped that the cepstrum method provides a robust and accurate way to match sequential images instead of correlation algorithms. In the present paper, the authors report their work on the cepstrum approach to the matching of sequential images. They show that cepstrum analysis provides a robust and fast method for sequential image matching, even if the input is raw images. It is also shown that the power cepstrum computation cost can be reduced by replacing the two-dimensional Fourier transform with two-dimensional Hartley transform. Cepstrum can also be obtained directly from the Hartley transformation. Experimental results are given to support the analysis.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"22 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":"132893713","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
Nonlinear analysis of phase-lock loop in coherent communication system 相干通信系统中锁相环的非线性分析
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184371
Yinqing Zhou, Jingwen Li, Su Jie
{"title":"Nonlinear analysis of phase-lock loop in coherent communication system","authors":"Yinqing Zhou, Jingwen Li, Su Jie","doi":"10.1109/CICCAS.1991.184371","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184371","url":null,"abstract":"A phase-lock loop is essentially an optimum nonlinear phase estimator, so that it can reduce the noise to a minimum, and recover the signal. Input noise can cause output phase trembling in the loop and affect its synchronization and tracking properties. It can even cause cycle skips. According to the analysis and simulation results, the probability density of random phase is the approximately Gaussian distribution, and the shape of the curve becomes sharper with increasing the signal noise ratio. One can evaluate the property of a phase-lock loop by its mean time of cycle skips. The relation between the mean time of cycle skips T/sub av/ and the input signal noise ratio (SNR)/sub L/ is an exponential function. The mean time of cycle skips increases, the number of cycle skips decreases, and the probability of unlocking decreases with increasing signal noise ratio.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"48 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":"128100499","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
An improved nonlinear macromodel of OTA 一种改进的OTA非线性宏观模型
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184509
Qing-Lin Sun, Jian-You Liu, Mei-Lun Liu
{"title":"An improved nonlinear macromodel of OTA","authors":"Qing-Lin Sun, Jian-You Liu, Mei-Lun Liu","doi":"10.1109/CICCAS.1991.184509","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184509","url":null,"abstract":"A new nonlinear macromodel for operational transconductance amplifier (OTA) is presented. It is developed by the 'build-up' technique. Typical parameters, such as differential and common mode input impedance, CMRR, slew rate, and the bias current effect, are taken into account. Model parameters can be calculated from the data sheets supplied by the manufacturers or chosen arbitrarily by the user. The main improvement of the model is that the authors introduce a nonlinear VCCS expressed by a polynomial to simulate the saturation characteristics, so that the nonlinear macromodel is very suitable for SPICE simulation. The results of simulations have proved the adequacy of the macromodel.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"2014 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":"128313532","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
Signal eigenvectors decomposition and direction of arrival estimation 信号特征向量分解及到达方向估计
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184356
Qing-Guang Liu, L. Zou
{"title":"Signal eigenvectors decomposition and direction of arrival estimation","authors":"Qing-Guang Liu, L. Zou","doi":"10.1109/CICCAS.1991.184356","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184356","url":null,"abstract":"Presents a new algorithm for direction-of-arrival (DOA) estimation. Based on the unique decomposition of large eigenvectors of array covariance matrix, an iterative algorithm is proposed, which is valid in any case whether the sources are coherent or not. Simulations showed that the new approach has a significant improvement in performance over MUSIC at low SNR or short data.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"9 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":"134455147","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
A parallel iterative routing algorithm based on local current comparison method-application of associative silicon retina 基于局部电流比比法的并行迭代路由算法——联想硅视网膜的应用
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184441
Gui-Xin Cheng, Mamoru Tanaka
{"title":"A parallel iterative routing algorithm based on local current comparison method-application of associative silicon retina","authors":"Gui-Xin Cheng, Mamoru Tanaka","doi":"10.1109/CICCAS.1991.184441","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184441","url":null,"abstract":"Proposes a new constructive parallel iterative routing method to solve the speed and routing quality problems in conventional routers such as the maze router and linear-expansion router, This method is based on selecting local maximum current in an Unity Resistive Network (URN) whose principle is to obtain the 'field' expressed with Poisson equation. Because all nets are routed in parallel, both problems can be solved to some extent. As the routing grid plane is represented by URN i.e. silicon retina, the present algorithm is suitable for hardware implementation by analog circuit and digital circuit. Experiment results showed the efficiency of the proposed method.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"76 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":"133481370","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: 4
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