Paper Abstract and Keywords |
Presentation |
2018-08-23 12:30
A study on method for detecting the convergence of coefficients of auxiliary filter applied to simultaneous equations method Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.) EA2018-28 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The simultaneous equations method estimates the overall path from the input of the noise control filter to the output of the error microphone by using the auxiliary filter. The power gain, however, decreases with the ipmrovement of the noise reduction effect. The improvement is equivalent to the decrease of the primary noise detected by the error microphone, which degrades the power ratio of the primary noise to the disturbance. This means that the estimation error increases with the improvement. The increase of the estimation error degrades the calculation precision of the coefficients of the noise control filter, which accordingly fluctuates the noise reduction effect. In this paper, we propose a method capable of estimating the overall path with a required estimation erro, and verify that the proposed method sucessfully works. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
active noise control / auxiliary filter / simultaneous equations method / convergence detection / step size control / / / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 190, EA2018-28, pp. 1-6, Aug. 2018. |
Paper # |
EA2018-28 |
Date of Issue |
2018-08-16 (EA) |
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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EA2018-28 |
Conference Information |
Committee |
EA ASJ-H |
Conference Date |
2018-08-23 - 2018-08-24 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tohoku Gakuin Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Engineering/Electro Acoustics, Psychological and Physiological Acoustics, and Related Topics |
Paper Information |
Registration To |
EA |
Conference Code |
2018-08-EA-H |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A study on method for detecting the convergence of coefficients of auxiliary filter applied to simultaneous equations method |
Sub Title (in English) |
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Keyword(1) |
active noise control |
Keyword(2) |
auxiliary filter |
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simultaneous equations method |
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convergence detection |
Keyword(5) |
step size control |
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1st Author's Name |
Kensaku Fujii |
1st Author's Affiliation |
Kodaway Laboratory (Kodaway Lab.) |
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Mitsuji Muneyasu |
2nd Author's Affiliation |
Kansai University (Kansai Univ.) |
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Speaker |
Author-1 |
Date Time |
2018-08-23 12:30:00 |
Presentation Time |
25 minutes |
Registration for |
EA |
Paper # |
EA2018-28 |
Volume (vol) |
vol.118 |
Number (no) |
no.190 |
Page |
pp.1-6 |
#Pages |
6 |
Date of Issue |
2018-08-16 (EA) |
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