Continuous-discrete adaptive observers for state affine systems

Tarek Ahmed-Ali (1) , Romain Postoyan (2) , Françoise Lamnabhi-Lagarrigue (2)

1 Equipe Automatique - Laboratoire GREYC - UMR6072
2 L2S - Laboratoire des signaux et systèmes

The observation of a class of multi-input multi-output (MIMO) state affine systems with constant unknown parameters and discrete time output measurements is addressed. Assuming some persistent excitation conditions to hold and the sampling steps to satisfy some boundedness hypotheses, system observability is ensured and a class of global exponential observers is synthesized.

Mots clés: Adaptive observer; Sampled-data observer

Domaines: Automatique; Automatique / Robotique

Tarek Ahmed-Ali, Romain Postoyan, Françoise Lamnabhi-Lagarrigue. Continuous-discrete adaptive observers for state affine systems. Automatica, 2009, 45 (12), pp.2986-2990. ⟨10.1016/j.automatica.2009.09.005⟩. ⟨hal-01058652⟩