Inter-sample behaviour as measured by continuous-time quadratic criteria
作者:
Bengt Lennartson,
Torsten Söderström,
Sun Zeng-Qi,
期刊:
International Journal of Control
(Taylor Available online 1989)
卷期:
Volume 49,
issue 6
页码: 2077-2083
ISSN:0020-7179
年代: 1989
DOI:10.1080/00207178908559763
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The effects of sampled-data control on linear stochastic systems are considered. A simplified formulation of the continuous-time linear quadratic criterion is presented. The sampled version of this performance function can be obtained by solving just one integral. It is also shown how the explicit value of the criterion can be calculated for an arbitrary controller. Finally, it is demonstrated that the optimization of a continuous-time and a discrete-time criterion sometimes gives a different closed- loop performance.
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