✦ LIBER ✦

Extended discrete-time LTR synthesis of delayed control systems

✍ Scribed by Jenny H. Shen; Asok Ray

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 648 KB
Volume: 29
Category: Article
ISSN: 0005-1098
DOI: 10.1016/0005-1098(93)90134-f

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✦ Synopsis

This paper addresses compensation of dealys within a multi-input-multi-output discrete-time feedback loop for application to real-time distributed control systems. The delay compensation algorithm, formulated, in this paper, is an extension of the standard loop transfer recovery (LTR) procedure from one-step prediction to the general case of p-step prediction (p>l). It is shown that the steady-state minimum-variance filter gain is the /-/2minimization solution of the relative error between the target sensitivity matrix and the actual sensitivity matrix for p-step prediction (p ---1). This concept forms the basis for synthesis of robust p-step delay compensators (p > 1). The proposed control synthesis procedure for delay compensation is demonstrated via simulation of the flight control system of an advanced aircraft.

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