DocumentCode
775213
Title
Near-optimal output feedback regulation of ill-conditioned linear systems
Author
Moerder, Daniel D. ; Calise, Anthony J.
Author_Institution
Dept. of Electr. Eng., Drexel Univ., Philadelphia, PA, USA
Volume
33
Issue
5
fYear
1988
fDate
5/1/1988 12:00:00 AM
Firstpage
463
Lastpage
466
Abstract
A two-time scale approximation for the linear quadratic optimal output feedback regulator program is examined. Necessary conditions for optimality, as well as an algorithm for computing locally near-optimal gains are derived. If it is assumed that the slow and fast subsystem initial conditions are uniformly distributed, optimal gains for the two-time-scale problem provide a second-order approximation to optimal closed-loop performance in the unperturbed system. This is verified with a numerical example
Keywords
closed loop systems; feedback; linear systems; multivariable control systems; optimal control; closed-loop performance; ill-conditioned linear systems; linear quadratic optimal output feedback regulator; near-optimal gains; necessary condition; two-time scale approximation; unperturbed system; Aerodynamics; Control systems; Linear feedback control systems; Linear programming; Linear systems; Mechanical engineering; NASA; Output feedback; Regulators; State feedback;
fLanguage
English
Journal_Title
Automatic Control, IEEE Transactions on
Publisher
ieee
ISSN
0018-9286
Type
jour
DOI
10.1109/9.1227
Filename
1227
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