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

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Adaptive reference echo cancellation with memory structure 基于内存结构的自适应参考回波消除
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184310
Shuyang Shi, Wenhai Li
{"title":"Adaptive reference echo cancellation with memory structure","authors":"Shuyang Shi, Wenhai Li","doi":"10.1109/CICCAS.1991.184310","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184310","url":null,"abstract":"A new approach, adaptive reference echo cancellation (AREC) with memory structure, is proposed, which can be used in a user/network interface for ISDN basic rate access, or in an other application, two-wire full-duplex transmission. As compared with a conventional (zero-reference) echo cancellation, the new approach, with a larger step-size, allows adaption of the echo canceller and the receiver to converge to a smaller residual echo. The approach is not sensitivity to non-linearity and is simple and feasible to implement in LSI, because of use of a lookup table structure. The authors analyse in detail the convergence performance of the AREC, and gives a computer simulation. The results shows that the new approach is preferable to the conventional ones.<<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":"134640054","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 systematic method of state-space synthesis for SCFs with low-sensitivity 低灵敏度SCFs的系统状态空间综合方法
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184329
Chen Li, Wu Zhengguo
{"title":"A systematic method of state-space synthesis for SCFs with low-sensitivity","authors":"Chen Li, Wu Zhengguo","doi":"10.1109/CICCAS.1991.184329","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184329","url":null,"abstract":"The authors present a systematic state-space synthesis method for designing practical precision switched capacitor filters (SCFs) with low-sensitivity to component variations in the passband. A general form of the matrix set of the state equations (matrix representation of the state equations) and the relationship between the matrix set and the voltage transfer functions are given for the SCFs with low-sensitivity performance. The results show that it is very simple to design low-sensitivity SCFs by the method presented.<<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":"133125725","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
The analysis of the high frequency oscillation on the output voltage state of RCJL gate 高频振荡对RCJL门输出电压状态的影响分析
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184436
Yu-Sheng Tang, Xingzhou. Yu, Jian-Fei Jiang
{"title":"The analysis of the high frequency oscillation on the output voltage state of RCJL gate","authors":"Yu-Sheng Tang, Xingzhou. Yu, Jian-Fei Jiang","doi":"10.1109/CICCAS.1991.184436","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184436","url":null,"abstract":"Computer analysis shows that the high frequency oscillation exists on the output voltage state of RCJL Josephson gate, which is a strongly nonlinear system. The amplitude of the oscillation directly affects the noise tolerance of the circuit. This is harmful to the digital application of the circuit. In the paper, the analytical formulas describing the oscillation are derived under some approximate conditions. The comparison between analytical description and computer numerical results shows little difference.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"18 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":"134097677","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
Wavefront reconstruction realized by systolic arrays 收缩阵列实现的波前重构
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184494
Wang Yingbo, Zhou Renzhong
{"title":"Wavefront reconstruction realized by systolic arrays","authors":"Wang Yingbo, Zhou Renzhong","doi":"10.1109/CICCAS.1991.184494","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184494","url":null,"abstract":"This paper tries to apply systolic arrays to the computations of wavefront reconstruction in adaptive optics. According to LU-decomposition and the feature of the problem, the operating structure of the systolic array performing zonal wavefront reconstruction has been provided. Modal wavefront reconstruction can be realized by the systolic array performing the matrix-vector multiplication. The analysis result indicates that the wavefront reconstruction can be speeded up greatly by using systolic arrays.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"71 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":"114130829","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
Design of distributed hardware preprocessor for realtime processing of telemetry data 面向遥测数据实时处理的分布式硬件预处理器设计
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184491
Zheng Huimin, Zhang Qishan
{"title":"Design of distributed hardware preprocessor for realtime processing of telemetry data","authors":"Zheng Huimin, Zhang Qishan","doi":"10.1109/CICCAS.1991.184491","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184491","url":null,"abstract":"Even though minicomputers and microcomputers are larger and faster than ever before, they have not kept pace with the demands of telemetry users. Hardware preprocessor of telemetry data has been used in distributed telemetry computer system for processing all data at extremely high rates. According to the requirements and characteristics of telemetry data processing, a distributed multiple data stream hardware preprocessor with multiplex microcomputers of telemetry data is introduced in the paper. Each data stream is processed by three microcomputer models coupled in multi-computation architecture. The microcomputer models consist of TMS320C25 in the preprocessor. The preprocessor owns the features of wavefront array processors. A time-wait procedure can be done in pipeline processing and large data processing can be derived in parallel processing and pipeline processing.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"59 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":"114873207","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
Troubleshooting expert system of digital circuit based on object model-modeling frame of digital circuit 基于对象模型的数字电路故障诊断专家系统
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184397
Hansheng Wu, Duanyi Zhang
{"title":"Troubleshooting expert system of digital circuit based on object model-modeling frame of digital circuit","authors":"Hansheng Wu, Duanyi Zhang","doi":"10.1109/CICCAS.1991.184397","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184397","url":null,"abstract":"The authors have developed a prototype expert system for the troubleshooting problems, The system is based on an object model, which is one of deep knowledge expressing the structure and function of a sequential circuit, the 74163 counter. The authors describe the concepts of object model, the modeling method of counter circuit, the knowledge representation method for the object knowledge base, inference and tableaux to practise fault diagnosis.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"5 6 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":"116858048","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
Design of ternary IIL circuits based on theory of grounded current switches 基于接地电流开关理论的三元IIL电路设计
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184517
Xunwei Wu, Xiaowei Deng
{"title":"Design of ternary IIL circuits based on theory of grounded current switches","authors":"Xunwei Wu, Xiaowei Deng","doi":"10.1109/CICCAS.1991.184517","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184517","url":null,"abstract":"According to the operating principle of I/sup 2/L circuits, the authors propose the theory of grounded current switches to describe the interaction between grounded transistors and current signals in I/sup 2/L circuits. In this theory, the switching state of the grounded transistor and current signal are described separately by two different kinds of variables. Also the threshold comparison operation and grounding operation are introduced to connect these two kinds of variables. Based upon the discussions on the properties of operations and the synthesis of functions, the design procedure for ternary I/sup 2/L circuits with level restoration is proposed. Ternary I/sup 2/L complement gate with level restoration and ternary quantizer are designed as examples. The results have confirmed that this theory can lead to a better design of I/sup 2/L circuits, thus circuits simpler than that previously presented can be obtained.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"28 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":"115442687","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
The realization of op amp nonlinear macromodel on SPICE 基于SPICE的运放非线性宏模型的实现
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184508
Wu Rei-Heng
{"title":"The realization of op amp nonlinear macromodel on SPICE","authors":"Wu Rei-Heng","doi":"10.1109/CICCAS.1991.184508","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184508","url":null,"abstract":"In this paper a comparatively ideal curve fitting technique for a nonlinear function is used to approach the large signal saturation nonlinear characteristics of an op amp input stage, so that the time domain response of circuits containing nonlinear op amp macromodels can be simulated precisely on SPICE. A relevant curve fitting program is realized and two circuits are analysed, giving satisfactory results.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"72 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":"123081884","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
The use of digital wave network for system performance analysis 利用数字波网络对系统进行性能分析
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184320
L. L. Cheng, L.M. Cheng
{"title":"The use of digital wave network for system performance analysis","authors":"L. L. Cheng, L.M. Cheng","doi":"10.1109/CICCAS.1991.184320","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184320","url":null,"abstract":"In this paper, a digital signal processing approach using a Digital Wave Network Model (DWN), for analysing system performance is described. The DWN is used to simulate the behavior of systems and to provide an approach for carrying out modifications. The modeling of systems is simplified by treating systems as transmission lines and the performance modeling is accessed by introducing signal and noise interactions. To illustrate the practicality of this approach, a commercial available paging unit is used. The system performance is compared by adjusting the sensitivity of the system in the presence of burst and random noise and the results are presented.<<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":"122155877","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 VLSI interconnects 在VLSI互连上
China., 1991 International Conference on Circuits and Systems Pub Date : 1991-06-16 DOI: 10.1109/CICCAS.1991.184532
O. Wing
{"title":"On VLSI interconnects","authors":"O. Wing","doi":"10.1109/CICCAS.1991.184532","DOIUrl":"https://doi.org/10.1109/CICCAS.1991.184532","url":null,"abstract":"The author reviews some recent approaches to the computation of transient response of VLSI circuits interconnected by transmission lines and discontinuities such as angled-bends. These approaches are based on modeling of the interconnects as subcircuits consisting of ordinary lumped elements, controlled sources and sections of ideal transmission lines (delay elements). In this way, the transient solution of the entire circuit can be obtained from a SPICE-like simulator, and FFT, discrete convolution or inversion of the Laplace transform can all be avoided. Examples of models of lossy transmission lines and 90 degrees bends are given.<<ETX>>","PeriodicalId":119051,"journal":{"name":"China., 1991 International Conference on Circuits and Systems","volume":"79 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":"122783954","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
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