Title :
A Note on Nonlinear State Observers
Author_Institution :
Devision of Optimization and Systems Theory, Royal Institute of Technology, 10044 Stockholm, Sweden
Abstract :
For linear systems, it is known that there exists a state observer if and only if the system is detectable, or in other words, asymptotically stabilizable by output injection. In this paper, it is shown that for a nonlinear system, the stabilizability by output injection is neither necessary nor sufficient for the existence of an observer.
Keywords :
Design methodology; Eigenvalues and eigenfunctions; Equations; Linear systems; Nonlinear systems;
Conference_Titel :
American Control Conference, 1991
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-87942-565-2
