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

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2-D signal interpolation using subsequence FFT 基于子序列FFT的二维信号插值
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.252016
S. Chan, K. Ho
{"title":"2-D signal interpolation using subsequence FFT","authors":"S. Chan, K. Ho","doi":"10.1109/MWSCAS.1991.252016","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252016","url":null,"abstract":"An efficient 2-D interpolation algorithm is presented which is a 2-D extension of the subsequence approach for 1-D interpolation introduced by K. Prasad and P. Satyanarayana (1986), which avoids the redundant operations in the inverse transform. An improved intermediate sequence is introduced to preserve the Hermitian symmetry when interpolating a real-valued signal. The resulting algorithm is significantly more efficient than the 2-D FFT method of J.W. Adams (1987). It is also more convenient, since it permits the use of the IFFT with a size that is the same as that of the original FFT.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"8 2 1","pages":"700-703 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77327598","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 temperature dependent SPICE macro-model for Zener and avalanche diodes 齐纳二极管和雪崩二极管的温度相关SPICE宏观模型
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.252092
M. Deveney
{"title":"A temperature dependent SPICE macro-model for Zener and avalanche diodes","authors":"M. Deveney","doi":"10.1109/MWSCAS.1991.252092","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252092","url":null,"abstract":"A SPICE subcircuit model for Zener and avalanche diodes which can simulate the operation of these devices over wide ranges of current and temperature, using a single set of parameters and a SPICE.TEMP statement, is described. The model is believed to be compatible with most SPICE-based circuit simulators, since it was designed to run in version 2G.6 of Berkeley SPICE. Although the emulation of a single component with a subcircuit of up to seven components may seem overly complex, in many cases the increased accuracy and ease of use will overshadow the increase in circuit complexity.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"28 1","pages":"592-596 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78007555","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: 9
An evaluation study of traditional and neural network techniques for image processing applications 传统和神经网络技术在图像处理中的应用评估研究
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.252129
M. Obaidat, J.V. Walk
{"title":"An evaluation study of traditional and neural network techniques for image processing applications","authors":"M. Obaidat, J.V. Walk","doi":"10.1109/MWSCAS.1991.252129","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252129","url":null,"abstract":"A comparative study of the artificial neural computing and traditional approaches to image processing is performed. The major goal is to determine the usefulness of artificial neural systems (ANSs) for such image processing applications as histogramming and image encoding. The paradigm used was developed from a C programming language model of a perceptron ANS with consideration of backpropagation attributes. It is found that the ANS approach produces results similar to those of traditional techniques.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"1 1","pages":"72-75 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74894127","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
Charge injection cancellation in sample-data-comparators using programmable staggering of zeroing signals 利用可编程调零信号的采样数据比较器中的电荷注入消除
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.252011
M. Mayes, R.R. Chen
{"title":"Charge injection cancellation in sample-data-comparators using programmable staggering of zeroing signals","authors":"M. Mayes, R.R. Chen","doi":"10.1109/MWSCAS.1991.252011","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252011","url":null,"abstract":"Comparator offsets resulting from charge injection of MOS switches vary over temperature, supply voltage, and process. These variations lead to difficulties in achieving optimum offset voltages. In a three-stage comparator design with current programmable delay times between autozero signals, optimum offset voltages are achieved over a wide range of operating conditions. By forcing a constant voltage swing on the feedback switches, channel charge injection dependence on effective threshold voltage levels leads to uncompensated offset errors.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"30 1","pages":"719-722 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83120341","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
Quadratic weights for large scale regulators 大型调节器的二次权
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.252199
S. Mahil, S. Bommaraju, K. Gopalan
{"title":"Quadratic weights for large scale regulators","authors":"S. Mahil, S. Bommaraju, K. Gopalan","doi":"10.1109/MWSCAS.1991.252199","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252199","url":null,"abstract":"A large-scale model is reduced to a low-order robust model by using principal component analysis. The low-order model is partitioned into (decoupled) subsystems by projecting the directions of strong influence in individual input(s) and output(s) on the state space of the reduced model. Quadratic weights are determined for the individual decoupled subsystems. These weights are used in the quadratic performance index for the reduced model. The quadratic weights for the original large-order model can easily be determined from the reduced performance index. The reduced performance index is sufficient to determine a robust low-order optimal controller for the large-order system. A ninth-order model of a chemical reactor having four inputs and three outputs is considered as an example.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"96 1","pages":"478-481 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85230023","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
Inexpensive shareware programs useful in EE coursework 在EE课程中有用的廉价共享软件程序
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.252143
R. Stuffle, L. Stuffle
{"title":"Inexpensive shareware programs useful in EE coursework","authors":"R. Stuffle, L. Stuffle","doi":"10.1109/MWSCAS.1991.252143","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252143","url":null,"abstract":"The authors present the results of a continuing survey of public-domain and shareware programs useful in electrical engineering (EE) education. Brief descriptions of those they feel are simultaneously sufficient for classwork applications and reasonable in cost are presented. Attention is given to software for graphing/plotting, word processing, graphics/schematic drawing, simulation, and miscellaneous special applications.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"4 1","pages":"130-133 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85935375","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
Direct variational solutions for linear dissipative oscillator using Lagrangian with reverse time scales 线性耗散振荡器的逆时尺度拉格朗日直接变分解
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.252041
V. M. Fatic
{"title":"Direct variational solutions for linear dissipative oscillator using Lagrangian with reverse time scales","authors":"V. M. Fatic","doi":"10.1109/MWSCAS.1991.252041","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252041","url":null,"abstract":"A new Lagrangian with reverse time scales is used for direct variational approximation of the solution of a linear dissipative oscillator. Very accurate global approximations are obtained by polynomial test functions of low order. The main goal of the present work is to verify a novel method for variational formulation of dissipative systems. It is. concluded that the new Lagrangian is not only correct, but is also a reliable tool for direct variational solutions of both boundary-value and initial-value problems.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"157 1","pages":"295-298 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85339444","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
Split-capacitive load variable taper buffer design 分容负载变锥缓冲设计
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.251988
S. Vemuru, E. Smith
{"title":"Split-capacitive load variable taper buffer design","authors":"S. Vemuru, E. Smith","doi":"10.1109/MWSCAS.1991.251988","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.251988","url":null,"abstract":"A split-capacitive load variable taper model for buffer design is proposed. For similar propagation delays, the proposed model results in buffer designs that take significantly less silicon area and less power dissipation compared to conventional FT (fixed taper) design. For lower capacitive loads, the FT designs are still better. Area, propagation delay, and power dissipation comparisons are made between the proposed and conventional designs using SPICE simulations.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"10 1","pages":"815-818 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84114552","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
Design of switched capacitor filter using bilinear transformation 双线性变换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.1991.252097
S. Hirano, E. Hayahara
{"title":"Design of switched capacitor filter using bilinear transformation","authors":"S. Hirano, E. Hayahara","doi":"10.1109/MWSCAS.1991.252097","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252097","url":null,"abstract":"The authors describe a design approach of the SCF (switched capacitor filter) simulating the doubly resistively terminated LC filter which is based on the concept of the bilinear transformation. The design approach is experimentally confirmed by the measurement of a test circuit with discrete elements. The features of this design approach are as follows: the SCF structure is the same as that based on the LDI transformation, the SCF structure requires no sample and hold circuits at the front and back, and the aperture effect is approximately compensated. Consequently, the total circuit that includes the SCF, the prefilter, and the postfilter can become simple and small. This design approach is effective in the case of using the SCF with the prefilter and the postfilter on the same IC chip.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"1 1","pages":"572-575 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90998223","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
Systolic architectures for parallel Fourier transform 平行傅里叶变换的收缩结构
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems Pub Date : 1991-05-14 DOI: 10.1109/MWSCAS.1991.252044
T. Baradaran-Seyed, L. G. Johnson, B. Karimi
{"title":"Systolic architectures for parallel Fourier transform","authors":"T. Baradaran-Seyed, L. G. Johnson, B. Karimi","doi":"10.1109/MWSCAS.1991.252044","DOIUrl":"https://doi.org/10.1109/MWSCAS.1991.252044","url":null,"abstract":"Novel systolic architectures are proposed for the computation of the Fourier transform based on the generation of the coefficients of the transform during the computation. These architectures require fewer input/output pins on the chip. The novel architectures are also extremely modular and cascadable, and thus are amenable to efficient VLSI implementation. The VLSI complexity of the architectures is compared with that of existing parallel architectures.<<ETX>>","PeriodicalId":6453,"journal":{"name":"[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems","volume":"48 1","pages":"283-286 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91199029","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
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