On the existence of KKL observers with nonlinear contracting dynamics (Long Version) - Archive ouverte HAL
Pré-Publication, Document De Travail Année : 2024

On the existence of KKL observers with nonlinear contracting dynamics (Long Version)

Résumé

KKL (Kazantzis-Kravaris/Luenberger) observers are based on the idea of immersing a given nonlinear system into a target system that is a linear stable filter of the measured output. In the present paper, we extend this theory by allowing this target system to be a nonlinear contracting filter of the output. We prove, under a differential observability condition, the existence of these new KKL observers. We motivate their introduction by showing numerically the possibility of combining convergence speed and robustness to noise, unlike what is known for linear filtering.
Fichier principal
Vignette du fichier
Micnon.pdf (469.94 Ko) Télécharger le fichier
error_x_conv.pdf (33.74 Ko) Télécharger le fichier
error_x_noise.pdf (41.79 Ko) Télécharger le fichier
error_z_conv.pdf (33.11 Ko) Télécharger le fichier
error_z_noise.pdf (42.86 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04476312 , version 1 (24-02-2024)
hal-04476312 , version 2 (15-03-2024)
hal-04476312 , version 3 (22-07-2024)

Identifiants

Citer

Victor Pachy, Vincent Andrieu, Pauline Bernard, Lucas Brivadis, Laurent Praly. On the existence of KKL observers with nonlinear contracting dynamics (Long Version). 2024. ⟨hal-04476312v2⟩

Collections

PARISTECH
519 Consultations
128 Téléchargements

Altmetric

Partager

More