Constructing sparse realizations of finite-precision digital controllers based on a closed-loop stability related measure


Wu, J., Chen, S., Li, G. and Chu, J. (2003) Constructing sparse realizations of finite-precision digital controllers based on a closed-loop stability related measure. IEE Proceedings - Control Theory and Applications, 150, (1), 61-68.

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Description/Abstract

We present a study of the finite word length (FWL) implementation for digital controller structures with sparseness consideration. A new closed-loop stability related measure is derived, taking into account the number of trivial elements in a controller realization. A practical design procedure is presented, which first obtains a controller realization that maximizes a lower bound of the proposed measure, and then uses a stepwise algorithm to make the realization sparse. Simulation results show that the proposed design procedure yields computationally efficient controller realizations with enhanced FWL closed-loop stability performance.

Item Type: Article
ISSNs: 1350-2379
Divisions: Faculty of Physical and Applied Science > Electronics and Computer Science > Comms, Signal Processing & Control
Item ID: 257273
Date Deposited: 31 Jan 2003
Last Modified: 02 Mar 2012 13:19
Contributors: Wu, J. (Author)
Chen, S. (Author)
Li, G. (Author)
Chu, J. (Author)
Date: January 2003
Status: Published
Publisher: IEE
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/257273

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