Observability and State Estimation for a Class of Nonlinear Systems

John Tsinias (1) , Constantinos Kitsos (2, 1)

1 NTUA - National Technical University of Athens [Athens]
2 GIPSA-SYSCO - GIPSA - Systèmes non linéaires et complexité

We derive sufficient conditions for the solvability of the state estimation problem for a class of nonlinear control time-varying systems which includes those, whose dynamics have triangular structure. The state estimation is exhibited by means of a sequence of functionals approximating the unknown state of the system on a given bounded time interval. More assumptions guarantee solvability of the state estimation problem by means of a hybrid observer.

Mots clés: observability; nonlinear systems; state estimation; hybrid observers

Domaines: Optimisation et contrôle [math.OC]; Systèmes et contrôle [cs.SY]; Automatique

John Tsinias, Constantinos Kitsos. Observability and State Estimation for a Class of Nonlinear Systems. IEEE Transactions on Automatic Control, 2019, 64 (6), pp.2621-2628. ⟨10.1109/TAC.2018.2868458⟩. ⟨hal-01870516⟩