Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2008
Session Number:G3
Session:
Number:G3-1
A Study on Adaptive Notch Filter Using Fourier Sine Series Expansion
Yasutomo Kinugasa, Masaki Kobayashi, Chi Wang, Yoshio Itoh,
pp.-
Publication Date:2008/7/7
Online ISSN:2188-5079
Summary:
In this paper, new adaptive notch filter that realized the phase shift of the all-pass circuit by the Fourier sine series expansion and the adaptive algorithm was proposed. The proposed adaptive notch filter was always stable since the all-pass filter was composed by an exponential filter. The degree of the all-pass filter only depended on the required steepness of the elimination characteristic and did not depend on the number of narrowband signals that should be eliminated.