Ire Transactions on Automatic Control最新文献_第10页

Controlled camping or USSR in heterospect 控制宿营或苏联的异质视角

Ire Transactions on Automatic Control Pub Date : 1961-09-01 DOI: 10.1109/TAC.1961.1105226

O. Smith

引用次数: 0

Foreword to special issue 特刊前言

Ire Transactions on Automatic Control Pub Date : 1961-05-01 DOI: 10.1109/TAC.1961.1105199

R. Kramer

引用次数: 0

A technique of linear system identification using correlating filters 一种使用相关滤波器的线性系统辨识技术

Ire Transactions on Automatic Control Pub Date : 1961-05-01 DOI: 10.1109/TAC.1961.1105194

W. Lichtenberger

{"title":"A technique of linear system identification using correlating filters","authors":"W. Lichtenberger","doi":"10.1109/TAC.1961.1105194","DOIUrl":"https://doi.org/10.1109/TAC.1961.1105194","url":null,"abstract":"A technique for measuring the impulse response of linear processes while they are on line is described. Such an identification of process dynamics is necessary in process-adaptive control systems. A testing signal and correlating filter are employed after the manner of Turin. Such a procedure requires no multiplier, and the output of the filter is the impulse response as a continuous function of real time. To reduce accompanying output noise, the method of adding coherently the results of a number of tests made in succession is proposed. This idea is applied to the measurement of a member of an ensemble of slowly varying impulse responses. Optimum design of both the correlating filter and the necessary test signal is determined on the basis of minimum mean-square error of the resulting estimate. The optimization of the number of tests to be included in a measurement is described. The general results are applied to the case of a single, slowly time-varying process. In addition to optimum design, normalized curves showing the optimum number of tests for a particular mode of variation are included. A second application is made to the problem of measuring a member of an ensemble of fixed processes. The results of a digital computer simulation of this case are given.","PeriodicalId":226447,"journal":{"name":"Ire Transactions on Automatic Control","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1961-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115860572","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

Direct cycle nuclear power plant stability analysis 直接循环核电站稳定性分析

Ire Transactions on Automatic Control Pub Date : 1961-05-01 DOI: 10.1109/TAC.1961.1105189

D. Buden, R. Miller

引用次数: 3

A parameter-perturbation adaptive control system 参数摄动自适应控制系统

Ire Transactions on Automatic Control Pub Date : 1961-05-01 DOI: 10.1109/TAC.1961.1105191

R. McGrath, V. Rajaraman, V. Rideout

引用次数: 24

A mean-weighted square-error criterion for optimum filtering of nonstationary random processes 非平稳随机过程最优滤波的均加权平方误差准则

Ire Transactions on Automatic Control Pub Date : 1961-05-01 DOI: 10.1109/TAC.1961.1105196

G. Murphy, K. Sahara

{"title":"A mean-weighted square-error criterion for optimum filtering of nonstationary random processes","authors":"G. Murphy, K. Sahara","doi":"10.1109/TAC.1961.1105196","DOIUrl":"https://doi.org/10.1109/TAC.1961.1105196","url":null,"abstract":"A procedure for use in the design of a physically realizable fime-invariant linear system for optimum filtering of a nonstationary random process in the presence of nonstationary random noise is presented in this paper. First, a new criterion for system performance is defined. On the basis of this criterion, an integral equation for the optimum physically realizable weighting function is derived, and it is shown that in some cases an exact solution to this equation can be obtained through the use of double Fourier transforms. Then the use of a technique to obtain an approximation to the solution to the integral equation is discussed. This theoretical background is followed by an illustrative example in which the method is used to design the optimum physically realizable linear time-invariant filter for a Brownian-motion signal contaminated by Markovian noise. It is shown here that if the designer is constrained by the requirement that the system be a digital filter with finite memory, then an exact solution can be found. Application of the method in cases where the random processes are stationary is discussed next, and the suggested approach is illustrated in an example.","PeriodicalId":226447,"journal":{"name":"Ire Transactions on Automatic Control","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1961-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133765729","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

Precision of impulse-response identification based on short, normal operating records 基于短时间正常运行记录的脉冲响应识别精度

Ire Transactions on Automatic Control Pub Date : 1961-05-01 DOI: 10.1109/TAC.1961.1105192

R. Kerr, W. Surber

{"title":"Precision of impulse-response identification based on short, normal operating records","authors":"R. Kerr, W. Surber","doi":"10.1109/TAC.1961.1105192","DOIUrl":"https://doi.org/10.1109/TAC.1961.1105192","url":null,"abstract":"The characteristics of a process may be estimated from an observation over a finite interval of time of the input and output variables of the system during a period of normal operation. The determination of the most effective method of analyzing the observed data and of estimating the probable errors in such an analysis is an important problem in the study of complex processes and in the design of adaptive controllers for time-varying systems. For adaptive control systems, it is desirable to base this system \"identification\" analysis on as short an operating record as possible, consistent with the specified degree of accuracy to be obtained. This paper is concerned with the problem of impulse-response estimation based on such short \"normal operating\" records. If the measurements of the system variables are corrupted by noise, the impulse-response parameter estimates will be random variables, since, for a given record length, these estimates vary from one sample of the observed data to the next, depending on the variation in the characteristics of the noise and the input signal during each short segment of the record. The expected \"integrated-squared-error\" between the actual and the computed impulse responses is shown to depend only on the input signal and the noise characteristics. A method of computing the expected-integrated-squared error for a given input signal is developed to provide a test of the reliability of the identification routine for each analysis. With assumptions on the statistical nature of the input signal, this \"sufficient signal\" criterion is transformed to a \"sufficient record length\" criterion. Examples are given for two such specific assumptions: 1) An input signal with a Gaussian amplitude distribution. 2) A switching-type input signal which jumps between +1 and -1 with a random distribution of switching times. Results are presented in sampled-data form.","PeriodicalId":226447,"journal":{"name":"Ire Transactions on Automatic Control","volume":"319 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1961-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122124974","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

A general performance index for analytical design of control systems 控制系统分析设计的一般性能指标

Ire Transactions on Automatic Control Pub Date : 1961-05-01 DOI: 10.1109/TAC.1961.1105186

Z. Rekasius

引用次数: 14

Stability of servomechanisms with friction and stiction in the output element 输出元件中有摩擦和粘滞的伺服机构的稳定性

Ire Transactions on Automatic Control Pub Date : 1961-05-01 DOI: 10.1109/TAC.1961.1105200

P. Boháček, F. Tuteur

引用次数: 3

On a property of optimal controllers with boundedness constraints 具有有界约束的最优控制器的一个性质

Ire Transactions on Automatic Control Pub Date : 1961-05-01 DOI: 10.1109/TAC.1961.1105197

H. Groginsky

引用次数: 2