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An observation algorithm for nonlinear systems with unknown inputs

Jean-Pierre Barbot 1, 2 Driss Boutat 3 Thierry Floquet 4, 5
2 ALIEN - Algebra for Digital Identification and Estimation
Inria Lille - Nord Europe, Inria Saclay - Ile de France, Ecole Centrale de Lille, X - École polytechnique, CNRS - Centre National de la Recherche Scientifique : UMR8146
4 NON-A - Non-Asymptotic estimation for online systems
Inria Lille - Nord Europe, CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189
5 SyNeR - Systèmes Non Linéaires et à Retards
CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189
Abstract : This paper provides some new developments in the design of unknown input observers for nonlinear systems. An algorithm which states 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 existing nonlinear unknown input observer design procedures.
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https://hal.inria.fr/inria-00391819
Contributor : Thierry Floquet <>
Submitted on : Thursday, June 4, 2009 - 6:57:44 PM
Last modification on : Tuesday, September 29, 2020 - 12:24:14 PM
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Jean-Pierre Barbot, Driss Boutat, Thierry Floquet. An observation algorithm for nonlinear systems with unknown inputs. Automatica, Elsevier, 2009, 45 (8), pp.1970-1974. ⟨10.1016/j.automatica.2009.04.009⟩. ⟨inria-00391819⟩

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