Optimal finite-precision state-estimate feedback controller realizations of discrete-time systems
Optimal finite-precision state-estimate feedback controller realizations of discrete-time systems
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.
1550-1554
Wu, J.
5a0119e5-a760-4ff5-90b9-ec69926ce501
Chen, S.
9310a111-f79a-48b8-98c7-383ca93cbb80
Li, G.
f0f77e84-2dca-4e91-854e-156d36434431
Chu, J.
08744087-3532-4f12-9d8a-5c8e5d79be0e
August 2000
Wu, J.
5a0119e5-a760-4ff5-90b9-ec69926ce501
Chen, S.
9310a111-f79a-48b8-98c7-383ca93cbb80
Li, G.
f0f77e84-2dca-4e91-854e-156d36434431
Chu, J.
08744087-3532-4f12-9d8a-5c8e5d79be0e
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), .
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.
More information
Published date: August 2000
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 251074
URI: http://eprints.soton.ac.uk/id/eprint/251074
ISSN: 0018-9286
PURE UUID: 3908124e-5178-46aa-bb65-7bfa657d16a0
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Date deposited: 25 Sep 2000
Last modified: 14 Mar 2024 05:08
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Contributors
Author:
J. Wu
Author:
S. Chen
Author:
G. Li
Author:
J. Chu
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