A Comb Filter with Adaptive Notch Gain and Bandwidth

Yosuke SUGIURA; Arata KAWAMURA; Youji IIGUNI

doi:10.1587/transfun.E96.A.790

A Comb Filter with Adaptive Notch Gain and Bandwidth

Yosuke SUGIURA, Arata KAWAMURA, Youji IIGUNI

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This paper proposes a new adaptive comb filter which automatically designs its characteristics. The comb filter is used to eliminate a periodic noise from an observed signal. To design the comb filter, there exists three important factors which are so-called notch frequency, notch gain, and notch bandwidth. The notch frequency is the null frequency which is aligned at equally spaced frequencies. The notch gain controls an elimination quantity of the observed signal at notch frequencies. The notch bandwidth controls an elimination bandwidth of the observed signal at notch frequencies. We have previously proposed a comb filter which can adjust the notch gain adaptively to eliminate the periodic noise. In this paper, to eliminate the periodic noise when its frequencies fluctuate, we propose the comb filter which achieves the adaptive notch gain and the adaptive notch bandwidth, simultaneously. Simulation results show the effectiveness of the proposed adaptive comb filter.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E96-A No.4 pp.790-795

Publication Date: 2013/04/01

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Online ISSN: 1745-1337

DOI: 10.1587/transfun.E96.A.790

Type of Manuscript: PAPER

Category: Digital Signal Processing

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Yosuke SUGIURA, Arata KAWAMURA, Youji IIGUNI, "A Comb Filter with Adaptive Notch Gain and Bandwidth" in IEICE TRANSACTIONS on Fundamentals, vol. E96-A, no. 4, pp. 790-795, April 2013, doi: 10.1587/transfun.E96.A.790.
Abstract: This paper proposes a new adaptive comb filter which automatically designs its characteristics. The comb filter is used to eliminate a periodic noise from an observed signal. To design the comb filter, there exists three important factors which are so-called notch frequency, notch gain, and notch bandwidth. The notch frequency is the null frequency which is aligned at equally spaced frequencies. The notch gain controls an elimination quantity of the observed signal at notch frequencies. The notch bandwidth controls an elimination bandwidth of the observed signal at notch frequencies. We have previously proposed a comb filter which can adjust the notch gain adaptively to eliminate the periodic noise. In this paper, to eliminate the periodic noise when its frequencies fluctuate, we propose the comb filter which achieves the adaptive notch gain and the adaptive notch bandwidth, simultaneously. Simulation results show the effectiveness of the proposed adaptive comb filter.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/transfun.E96.A.790/_p

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@ARTICLE{e96-a_4_790,
author={Yosuke SUGIURA, Arata KAWAMURA, Youji IIGUNI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Comb Filter with Adaptive Notch Gain and Bandwidth},
year={2013},
volume={E96-A},
number={4},
pages={790-795},
abstract={This paper proposes a new adaptive comb filter which automatically designs its characteristics. The comb filter is used to eliminate a periodic noise from an observed signal. To design the comb filter, there exists three important factors which are so-called notch frequency, notch gain, and notch bandwidth. The notch frequency is the null frequency which is aligned at equally spaced frequencies. The notch gain controls an elimination quantity of the observed signal at notch frequencies. The notch bandwidth controls an elimination bandwidth of the observed signal at notch frequencies. We have previously proposed a comb filter which can adjust the notch gain adaptively to eliminate the periodic noise. In this paper, to eliminate the periodic noise when its frequencies fluctuate, we propose the comb filter which achieves the adaptive notch gain and the adaptive notch bandwidth, simultaneously. Simulation results show the effectiveness of the proposed adaptive comb filter.},
keywords={},
doi={10.1587/transfun.E96.A.790},
ISSN={1745-1337},
month={April},}

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TY - JOUR
TI - A Comb Filter with Adaptive Notch Gain and Bandwidth
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 790
EP - 795
AU - Yosuke SUGIURA
AU - Arata KAWAMURA
AU - Youji IIGUNI
PY - 2013
DO - 10.1587/transfun.E96.A.790
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E96-A
IS - 4
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - April 2013
AB - This paper proposes a new adaptive comb filter which automatically designs its characteristics. The comb filter is used to eliminate a periodic noise from an observed signal. To design the comb filter, there exists three important factors which are so-called notch frequency, notch gain, and notch bandwidth. The notch frequency is the null frequency which is aligned at equally spaced frequencies. The notch gain controls an elimination quantity of the observed signal at notch frequencies. The notch bandwidth controls an elimination bandwidth of the observed signal at notch frequencies. We have previously proposed a comb filter which can adjust the notch gain adaptively to eliminate the periodic noise. In this paper, to eliminate the periodic noise when its frequencies fluctuate, we propose the comb filter which achieves the adaptive notch gain and the adaptive notch bandwidth, simultaneously. Simulation results show the effectiveness of the proposed adaptive comb filter.
ER -