Adaptive nonlinear observer/controller design for uncertain nonlinear systems 1

Autor: Ioannis Kanellakopoulos, Yaolong Tan
Rok vydání: 1999
Předmět:
Zdroj: IFAC Proceedings Volumes. 32:2363-2368
ISSN: 1474-6670
DOI: 10.1016/s1474-6670(17)56401-0
Popis: We present a procedure for global adaptive output-feedback stabilization and tracking of a class of nonlinear systems that can be transformed via a global diffeomorphism into systems thai are linear up to output injection and linear with respect to the unknown parameters. Compared to the well-known class of parametric output-feedback systems, our extended class allows output-dependent nonlinearities to appear not only additively, but also multiplicatively. The procedure consists in the construction of a nonlinear coordinate transformation that allows us to design a nonlinear observer, which is then integrated with a backstepping controller and a parameter estimator to yield a globally stable closed-loop system.
Databáze: OpenAIRE