RESEARCH PAPERS: Additional Technical Papers

Model Reference Adaptive Controllers and Stochastic Self-Tuning Regulators—A Unified Approach

[+] Author and Article Information
I. D. Landau

Laboratoire d’Automatique de Grenoble (C.N.R.S), E.N.S.I.E.G.-B.P. 46, 38402-ST. Martin D’Heres, Grenoble, France

J. Dyn. Sys., Meas., Control 103(4), 404-416 (Dec 01, 1981) (13 pages) doi:10.1115/1.3139683 History: Received November 22, 1979; Online July 21, 2009


The control objectives for Model Reference Adaptive Control Systems (MRAC) are specified in terms of a reference model. The control objectives for Stochastic Self-Tuning Regulators (S-STURE) are specified in terms of an ARMA model. These two types of adaptive control systems share a common characteristic (duality). This duality extends the one existing in the linear case with known parameters between modal control (pole-placement) and minimum variance control. Based on the duality properties, a unified presentation of the two techniques is possible; the S-STURE being interpreted as a stochastic MRAC. The underlying concepts and the structure of these adaptive control systems are described. The available theoretical results concerning the analysis of these systems are briefly reviewed. The primary domain of application of these techniques are indicated. An overview of the unsolved problems concludes the paper.

Copyright © 1981 by ASME
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