Adaptive periodic IIR filters
نویسندگان
چکیده
We consider adaptive periodic IIR ltering and present an extension of the Hyperstable Adaptive Recursive Filter (HARF). We give conditions for convergence of the parameter estimate error, involving passivity of certain operators in the identi cation loop, identi ability of the system parameters, and persistent excitation (pe). A necessary and su cient condition for identi ability is given and subject to its satisfaction, input-only conditions guaranteeing pe are given.
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