An observation algorithm for nonlinear systems with unknown inputs

This paper deals with the design of unknown input observers for nonlinear systems. An algorithm which determines if the state and the unknown input of the system can be recovered in finite time is introduced. This algorithm leads to the transformation of the system into an extended block triangular...

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Bibliographic Details
Published inAutomatica (Oxford) Vol. 45; no. 8; pp. 1970 - 1974
Main Authors Barbot, Jean-Pierre, Boutat, Driss, Floquet, Thierry
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Ltd 01.08.2009
Elsevier
Subjects
Algorithms
Applied sciences
Automatic Control Engineering
Blocking
Computer Science
Computer science; control theory; systems
Control theory. Systems
Design engineering
Dynamical systems
Exact sciences and technology
Mathematical analysis
Modelling and identification
Nonlinear dynamics
Nonlinear systems
Observability
Observers
Transformations
Unknown inputs
Nonlinear systems
Observability
Unknown inputs
Unknown input
Observer
Non linear control
System identification
Non linear system
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Summary:This paper deals with the design of unknown input observers for nonlinear systems. An algorithm which determines if the state and the unknown input of the system can be recovered in finite time is introduced. This algorithm leads to the transformation of the system into an extended block triangular observable form suitable for the design of finite time observers. The proposed method is useful to relax some restrictive conditions of the existing nonlinear unknown input observer design procedures.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0005-1098
1873-2836
DOI:10.1016/j.automatica.2009.04.009