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| Presentation | 2022-08-05 10:30 On causes of secondary path estimation error destabilizing active noise control and stabilization measures Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.), Yoshifumi Chisaki (CIT)  EA2022-36 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this paper, we clarify the mechanism of secondary path estimation error destabilizing active noise control and present a method of stabilizing the performance of active noise control. The noise control is regarded as stabilized by applying a small step size to updating the coefficients of the noise control filter. The secondary path estimation error, however, generates another solution different from the optimum solution reducing the output of the error microphone to zero. The coefficients of the noise control are updated so as to approaching the other solution, and thereby the noise control is un-stabilized. In this paper, we show the reduction of the number of taps in the noise control filter to be effective. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Filtered-x algorithm / Secondary path filter / Secondary path estimation error / Quasi optimum solution / Optimum noise control filter / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 144, EA2022-36, pp. 48-55, Aug. 2022. | |
| Paper # | EA2022-36 | |
| Date of Issue | 2022-07-28 (EA) | |
| ISSN | 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) | |
| Download PDF | EA2022-36 |
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| Conference Information | |
| Committee | EA ASJ-H |
| Conference Date | 2022-08-04 - 2022-08-05 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2022-08-EA-H |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On causes of secondary path estimation error destabilizing active noise control and stabilization measures |
| Sub Title (in English) | |
| Keyword(1) | Filtered-x algorithm |
| Keyword(2) | Secondary path filter |
| Keyword(3) | Secondary path estimation error |
| Keyword(4) | Quasi optimum solution |
| Keyword(5) | Optimum noise control filter |
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| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kensaku Fujii |
| 1st Author's Affiliation | Kodaway Laboratory (Kodaway Lab.) |
| 2nd Author's Name | Mitsuji Muneyasu |
| 2nd Author's Affiliation | Kansai University (Kansai Univ.) |
| 3rd Author's Name | Yoshifumi Chisaki |
| 3rd Author's Affiliation | Chiba Institute of Technology (CIT) |
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| Speaker | Author-1 |
| Date Time | 2022-08-05 10:30:00 |
| Presentation Time | 30 minutes |
| Registration for | EA |
| Paper # | EA2022-36 |
| Volume (vol) | vol.122 |
| Number (no) | no.144 |
| Page | pp.48-55 |
| #Pages | 8 |
| Date of Issue | 2022-07-28 (EA) |
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