Presentation 1998/12/10
A Study on Adaptive Notch Filter
Masaki KOBAYASHI, Tomohiro AKAGAWA, Yoshio ITOH,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this paper, we proposed an adaptive notch filter using an allpass filter for the elimination of multiple unknown narrow-band signal or the sine waves imbedded in abroad-band signal. The adaptive algorithm is based on the steepest descent method and the updating value of the algorithm is the correlation of the input signal to the weights of the forward part of the allpass filter and the estimation error. It is proven that the weights after converging completely suppress the narrow-band signal when assuming that the broad-band signal and the narrow-band signal are statistically independent. Finally, the convergence performance of the estimation accuracy and the weights are verified by the computer simulation.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) narrow-band signal / adaptive algorithm / elimination band / notch filter / updating vector
Paper # DSP-98-124
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Conference Information
Committee DSP
Conference Date 1998/12/10(1days)
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Paper Information
Registration To Digital Signal Processing (DSP)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study on Adaptive Notch Filter
Sub Title (in English)
Keyword(1) narrow-band signal
Keyword(2) adaptive algorithm
Keyword(3) elimination band
Keyword(4) notch filter
Keyword(5) updating vector
1st Author's Name Masaki KOBAYASHI
1st Author's Affiliation Faculty of Engineering, Ibaraki University()
2nd Author's Name Tomohiro AKAGAWA
2nd Author's Affiliation Faculty of Engineering, Ibaraki University
3rd Author's Name Yoshio ITOH
3rd Author's Affiliation Faculty of Engineering, Tottori University
Date 1998/12/10
Paper # DSP-98-124
Volume (vol) vol.98
Number (no) 450
Page pp.pp.-
#Pages 8
Date of Issue