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On nonlinear observers

1985; Institute of Electrical and Electronics Engineers; Volume: 30; Issue: 12 Linguagem: Inglês

10.1109/tac.1985.1103881

2334-3303

Arjan van der Schaft,

Stability and Controllability of Differential Equations

In this note we make some remarks about the general observer problem for nonlinear systems. We show how the existence of a partial observer without stability requirements is locally equivalent to the existence of a conditioned invariant distribution. We argue that by considering not only identity observers we can put the stability issue in a broader perspective.