Optimal finite-precision state-estimate feedback controller realizations of discrete-time systems


Wu, J., Chen, S., Li, G. and Chu, J. (2000) Optimal finite-precision state-estimate feedback controller realizations of discrete-time systems. IEEE Transactions on Automatic Control, 45, (8), 1550-1554.

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Description/Abstract

This paper investigates the stability issue of a discrete-time control system, where a state-estimate feedback controller (SEFC), digitally implemented with fixed-point format, is used. A tractable closed-loop stability related measure is derived with finite-word-length (FWL) implementation consideration of the controller. The optimal realizations of the SEFC are defined as those that maximize this measure and can be shown as the solutions of a nonlinear programming problem. A sophisticated optimization strategy is presented to provide an efficient method for solving this problem, and a numerical example is given to illustrate the design procedure.

Item Type: Article
ISSNs: 0018-9286
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Comms, Signal Processing & Control
ePrint ID: 251074
Date Deposited: 25 Sep 2000
Last Modified: 27 Mar 2014 19:52
Publisher: IEEE
Further Information:Google Scholar
ISI Citation Count:17
URI: http://eprints.soton.ac.uk/id/eprint/251074

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