Frequency-domain approach to the absolute stability analysis of discrete-time linear-quadratic regulators
作者:
J.J.da Cruz,
J.C.Geromel,
期刊:
IEE Proceedings D (Control Theory and Applications)
(IET Available online 1990)
卷期:
Volume 137,
issue 2
页码: 104-106
年代: 1990
DOI:10.1049/ip-d.1990.0013
出版商: IEE
数据来源: IET
摘要:
A frequency-domain approach to the absolute stability analysis of multivariable time-invariant discrete-time linear quadratic regulators is developed in the paper. An imbedding form of a fundamental equality relating the return-difference and the open-loop transfer matrices is the key for the application of the Popov criterion in the analysis. This imbedding form also establishes a necessary condition for a closed-loop matrixtransfer function to have been obtained through an LQ design.
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