Global Adaptive Observer for a Class of Nonlinear Systems

Qinghua Zhang (1) , Aiping Xu (1)

1 SIGMA2 - Signal, models, algorithms

The problem considered in this report is the joint estimation of state and some parameters for a class of truly nonlinear systems. The proposed method is constructive and garantees global convergence. It has been inspired by the technique of high gain observer and by a recent result on linear adaptive observer. A numerical example is presented for illustration. Potential applications of the adaptive observer arc adaptive control fault detection and isolation.

Mots clés: NONLINEAR SYSTEM; ADAPTIVE OBSERVER; HIGH GAIN OBSERVER; GLOBAL STATE AND PARAMETER ESTIMATION

Domaines: Autre [cs.OH]

Qinghua Zhang, Aiping Xu. Global Adaptive Observer for a Class of Nonlinear Systems. [Research Report] RR-4246, INRIA. 2001. ⟨inria-00072341⟩