Adaptive low-power high-gain observers for lower-triangular systems with input-dependent Lipschitz constant

Elise Morfin , Daniele Astolfi (1, 2) , Vincent Andrieu (3)

1 CNRS - Centre National de la Recherche Scientifique
2 LAGEPP - Laboratoire d'automatique, de génie des procédés et de génie pharmaceutique
3 LAGEP - Laboratoire d'automatique et de génie des procédés

We combine the low-power high-gain observer recently proposed in Astolfi and Marconi (2015) with the updated-gain technique used in Andrieu et al. (2009). The resulting adaptive low-power high-gain observer inherits the advantages of both techniques and can be used to address the state-estimation problem for Lipschitz systems in lower triangular form with nonlinearities having a Lipschitz constant that depends on a known external input.

Domaines: Systèmes et contrôle [cs.SY]

Elise Morfin, Daniele Astolfi, Vincent Andrieu. Adaptive low-power high-gain observers for lower-triangular systems with input-dependent Lipschitz constant. 21st IFAC World Congress, Jul 2020, Berlin, Germany. ⟨hal-02557310⟩