Paper Abstract and Keywords |
Presentation |
2008-02-01 15:30
Design of Howling Suppressors using Adaptive Notch Filters Takashi Matsumoto, Masayoshi Aoshima, Eiji Watanabe (Shibaura Inst. of Tech.), Akinori Nishihara (Tokyo Inst. of Tech.) CAS2007-105 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
When it is desired to suppress periodic signals whose frequencies are
unknown such as howling signals, one solution is to use adaptive IIR notch filters. However, the suppression is insufficient when the increase of howling amplitude is faster than the convergence of adaptive coefficients. Moreover, LMS-based adaptive IIR notch filters are not suitable in howling suppression because their iteration steps are depend on the amplitude of input signals. This paper proposes a design of howling suppressors based on least-square adaptive IIR notch filters. As the proposed suppressors have no parameter depending on howling amplitude and frequency, they can suppress howling signals immediately. The effectiveness of proposed ones are verified by simulations and experiments. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Digital Signal Processing / Adaptive Signal Processing / Howling Signal / Adaptive Notch Filter / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 107, no. 476, CAS2007-105, pp. 67-72, Jan. 2008. |
Paper # |
CAS2007-105 |
Date of Issue |
2008-01-25 (CAS) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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CAS2007-105 |
Conference Information |
Committee |
CAS |
Conference Date |
2008-01-31 - 2008-02-01 |
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(See Japanese page) |
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Paper Information |
Registration To |
CAS |
Conference Code |
2008-01-CAS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Design of Howling Suppressors using Adaptive Notch Filters |
Sub Title (in English) |
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Keyword(1) |
Digital Signal Processing |
Keyword(2) |
Adaptive Signal Processing |
Keyword(3) |
Howling Signal |
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Adaptive Notch Filter |
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1st Author's Name |
Takashi Matsumoto |
1st Author's Affiliation |
Shibaura Institute of Technology (Shibaura Inst. of Tech.) |
2nd Author's Name |
Masayoshi Aoshima |
2nd Author's Affiliation |
Shibaura Institute of Technology (Shibaura Inst. of Tech.) |
3rd Author's Name |
Eiji Watanabe |
3rd Author's Affiliation |
Shibaura Institute of Technology (Shibaura Inst. of Tech.) |
4th Author's Name |
Akinori Nishihara |
4th Author's Affiliation |
Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
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Speaker |
Author-1 |
Date Time |
2008-02-01 15:30:00 |
Presentation Time |
25 minutes |
Registration for |
CAS |
Paper # |
CAS2007-105 |
Volume (vol) |
vol.107 |
Number (no) |
no.476 |
Page |
pp.67-72 |
#Pages |
6 |
Date of Issue |
2008-01-25 (CAS) |
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