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Dissipative design of unknown input observers for systems with sector nonlinearities. (English) Zbl 1227.93018

Summary: A design method for nonlinear Unknown Input Observers (UIO) for a class of nonlinear systems is proposed. This design is based on a dissipative characterization of the existence conditions for such observers derived recently by the authors. The main condition corresponds to an abstract incremental dissipativity property of the plant, which can be made computable by the use of LMI techniques for the considered class of systems. This leads to a constructive design method for nonlinear UIOs.

MSC:

93B07 Observability
93C10 Nonlinear systems in control theory
93D99 Stability of control systems
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