Title :
Nonlinear adaptive observer design for uncertain dynamical systems
Author :
Vargas, José A Ruiz ; Hemerly, Elder M.
Author_Institution :
Dept. of Control & Syst., Technol. Inst. of Aeronaut., Sao Paulo, Brazil
Abstract :
We address the problem of adaptive state estimation for multivariable nonlinear systems in the presence of parameter uncertainty and bounded disturbances. The nonlinear adaptive observer uses a time varying gain matrix and usual Lyapunov arguments are employed in order to guarantee stability for the state and parameter errors. The presence of perturbations are considered and no SPR assumption is required in order to prove stability
Keywords :
adaptive systems; multivariable control systems; nonlinear control systems; observers; uncertain systems; Lyapunov arguments; adaptive state estimation; bounded disturbances; multivariable nonlinear systems; nonlinear adaptive observer; parameter uncertainty; time varying gain matrix; uncertain dynamical systems; Control systems; Iron; Nonlinear control systems; Nonlinear dynamical systems; Nonlinear systems; Observers; Programmable control; Stability; State estimation; Uncertain systems;
Conference_Titel :
Decision and Control, 2000. Proceedings of the 39th IEEE Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6638-7
DOI :
10.1109/CDC.2000.912036