Asymptotic Stability of the Wonham Filter: Ergodic and Nonergodic Signals
نویسندگان
چکیده
The stability problem of the Wonham filter with respect to initial conditions is addressed. The case of ergodic signals is revisited in view of a gap in the classic work of H. Kunita (1971). We give new bounds for the exponential stability rates, which do not depend on the observations. In the nonergodic case, the stability is implied by identifiability conditions, formulated explicitly in terms of the transition intensities matrix and the observation structure.
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ورودعنوان ژورنال:
- SIAM J. Control and Optimization
دوره 43 شماره
صفحات -
تاریخ انتشار 2004