Finite word length stability issues in an l1 framework

The paper addresses the digital controller structure problem for the closed loop stability of a feedback digital control system subject to finite word length (FWL). A new method of maximizing the stability subject to perturbations in the digital controller implementation is proposed. The approach is...

Full description

Saved in:
Bibliographic Details
Published inInternational journal of control Vol. 73; no. 2; pp. 166 - 176
Main Authors Whidborne, J. F., Istepanian, R. S. H.
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 01.01.2000
Online AccessGet full text

Cover

More Information
Summary:The paper addresses the digital controller structure problem for the closed loop stability of a feedback digital control system subject to finite word length (FWL). A new method of maximizing the stability subject to perturbations in the digital controller implementation is proposed. The approach is based on structured perturbation theory in an l 1 framework, and unlike some previous approaches, can be simply extended to consider closed loop nominal performance and closed loop robust performance and stability. The method is demonstrated with application examples.
ISSN:0020-7179
1366-5820
DOI:10.1080/002071700219876