Output-to-state stability and detectability of nonlinear systems
نویسنده
چکیده
The notion of input-to-state stability (ISS) has proved to be useful in nonlinear systems analysis. This paper discusses a dual notion, output-to-state stability (OSS). A characterization is provided in terms of a dissipation inequality involving storage (Lyapunov) functions. Combining ISS and OSS there results the notion of input/output-to-state stability (IOSS), which is also studied and related to the notion of detectability, the existence of observers, and output injection. Keyword~: Detectability; Lyapunov functions; Dissipation; Observers; Output injection; Input-to-state stability
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