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Journal of Automation and Information Sciences

ISSN for PRINT: 1064-2315

Institutional price:	$2573.00
Issues per year:	12

Best Paper Award Selection - Editorial Board Site

2004, Volume36

68 pages

DOI: 10.1615/JAutomatInfScien.v36.i1

Issue price - $221.00

Contradiction between Conditions of Mean-Root Square Error Minimization and Integral Root Mean Estimate in Tracking Systems with the Principle of Deviation Control

Grigoriy F. Zaitsev
State University of Information and Communication Technologies, Kiev, Ukraine

Grigoriy D. Radzivilov
Kiev Military Institute of Telecommunication and Informatics of National Technical University of Ukraine "Kiev Polytechnical Institute", Ukraine

Nelya V. Gradoboyeva
State University of Information and Communication Technologies, Kiev, Ukraine

ABSTRACT

It is shown that in contrast to open-loop systems peculiarity of automatic control systems with control principle based on deviation (systems with negative feedback) consists in contradiction between conditions of minimality of error and quadratic integral estimate of transient processes on entering its input of one random set-point action. It was ascertained that the minimal value of mean-root square error for these systems is reached for values of their amplification factor for open-loop state close to stability threshold, when slowly decreasing transient processes arise (considerable quadratic integral estimates). We construct recommendations for compromise selection of amplification factor of the tracking system.