DocumentCode
3139002
Title
On the unknown input observer design: A decoupling class approach
Author
Bezzaoucha, Souad ; Marx, Benoît ; Maquin, Didier ; Ragot, José
Author_Institution
Centre de Rech. en Autom. de Nancy (CRAN), Nancy-Univ., Vandoeuvre-les-Nancy, France
fYear
2011
fDate
19-21 Dec. 2011
Firstpage
602
Lastpage
607
Abstract
This paper deals with state estimation for linear discrete-time systems subject to unknown input. Although many papers have dealt with the problem of Unknown Input Observer design, state decoupling and reconstruction; the goal is to present a new method allowing to characterize a class of unknown inputs to which the estimation error is decoupled. This contribution considers two problems: exact decoupling and ℒ2-attenuation of the unknown input to the state estimation error.
Keywords
discrete time systems; fault diagnosis; linear systems; observers; ℒ2-attenuation; decoupling class approach; exact decoupling; fault detection problem; linear discrete-time systems subject; state estimation error; state reconstruction; unknown input observer design; Attenuation; Equations; Estimation error; Linear matrix inequalities; Observers;
fLanguage
English
Publisher
ieee
Conference_Titel
Control and Automation (ICCA), 2011 9th IEEE International Conference on
Conference_Location
Santiago
ISSN
1948-3449
Print_ISBN
978-1-4577-1475-7
Type
conf
DOI
10.1109/ICCA.2011.6138035
Filename
6138035
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