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Communication Dans Un Congrès Année : 2024

Simple but useful contributions to high-gain observer for non-triangular systems

Résumé

This paper deals with nonlinear observer design for a class of non-triangular nonlinear systems. Simple but useful contributions to the design of high-gain observers are proposed for systems with arbitrary nonlinear structures contrary to the standard results on high-gain observer methodology developed for triangular nonlinearities. First, based on the use of a convenient decomposition of the nonlinear function, a general design method is provided. Compared to the standard high-gain observer, the proposed method requires an extra constraint on the tuning parameter to dominate the non-triangular components of the nonlinearity of the system. To reduce the conservatism of the extra-condition, further results are established by exploiting the Linear Matrix Inequality (LMI) based approach. A numerical design algorithm is provided to build all the observer parameters. Finally, an illustrative example is presented to show the effectiveness and validity of the proposed methods.
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Dates et versions

hal-04561497 , version 1 (27-04-2024)

Identifiants

  • HAL Id : hal-04561497 , version 1

Citer

Hasni Arezki, Ali Zemouche. Simple but useful contributions to high-gain observer for non-triangular systems. American Control Conference, ACC 2024, Jul 2024, Toronto, Canada. ⟨hal-04561497⟩
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