ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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10
Issue
vol 60 / OCTOBER, 2017
Article
UDC 62-506.1 (047)

ADAPTIVE CONTROL OF LINEAR SYSTEMS WITH UNKNOWN SIGN OF HIGHFREQUENCY GAIN

I. B. Furtat
ITMO University, Saint Petersburg, 197101, Russian Federation; Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, Saint Petersburg, 199178, Russian Federation; Professor; Leading scientific researcher


A. M. Tsykunov
Astrakhan State Technical University, Department of Mathematics in Engineering Education; Professor


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Abstract. The problem of adaptive optimization of linear systems under parametric and functional uncertainty, and lack of information on the sign of high-frequency gain is considered. A solution to the problem is obtained on the base of modified adaptation algorithm of a high order with the use of a function allowing for compensation of the sign uncertainty. Results of numerical modeling are presented.
Keywords: adaptive control, modified algorithm of adaptation of the high order, high-frequency gain, observer.