NDLI: Model reference control with /spl Hscr//sub /spl infin// loop shaping

Content Provider	IEEE Xplore Digital Library
Author	Guoxiang Gu Gisoon Kim
Copyright Year	1995
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Louisiana State Univ., Baton Rouge, LA, USA (Guoxiang Gu; Gisoon Kim)
Abstract	Model reference control (MRC) has been used extensively in adaptive control. However, due to the lack of stability guarantees in the presence of model uncertainties, robustness of adaptive control based on MRC is not ensured. The paper considers MRC from a different perspective. Reference model is used to represent the frequency shape of the ideal sensitivity function. The central objective is to design a feedback controller such that it achieves the desired frequency shape specified by the reference model within a prescribed tolerance in /spl Hscr//sub /spl infin// norm. This leads to the /spl Hscr//sub /spl infin// loopshaping for MRC. It is shown that the resulting /spl Hscr//sub /spl infin// controller has an observer structure as in the LQG/LTR case. An efficient algorithm is developed for solving the required /spl Hscr//sub /spl infin// controller. The results reported enhance the robustness for MRC.
Starting Page	492
Ending Page	496
File Size	481920
Page Count	5
File Format	PDF
ISBN	0818669853
ISSN	00942898
DOI	10.1109/SSST.1995.390532
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-03-12
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Shape control Adaptive control Robust stability Robust control Control system synthesis Uncertainty Feedback control Frequency synthesizers Error correction Cost function
Content Type	Text
Resource Type	Article

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