An observation algorithm for nonlinear systems with unknown inputs

• Published in: Automatica (Oxford) Vol. 45; no. 8; pp. 1970 - 1974
• Main Authors: Barbot, Jean-Pierre, Boutat, Driss, Floquet, Thierry
• Format: Journal Article
• Language: English
• 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

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...