A new IIR adaptive notch filter

Authors:
Mu-Huo Cheng;Jau-Long Tsai
Affiliations:
Department of Electrical and Control Engineering, National Chiao Tung University, Hsinchu, Taiwan;Department of Electrical and Control Engineering, National Chiao Tung University, Hsinchu, Taiwan
Venue:
Signal Processing
Year:
2006

Citing 2
Cited 2

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Abstract

A new IIR adaptive notch filter (ANF) with fast convergence rate, accurate estimation of notch frequencies, and modest realization complexity is presented in this paper. The problem of obtaining a notch filter from a given signal containing multiple sine waves in noise is first formulated as the conventional problem of system identification. Then the new ANF is developed via the algorithm of Steiglitz McBride. Extensive simulations have been performed to verify the effectiveness of the ANF.