Paper Abstract and Keywords |
Presentation |
2011-06-23 14:00
Improvement of Noise Reduction Performance of ANC Systems with Online Secondary Path Modeling Technique using Two Secondary Path Models Akihisa Oishi, Muhammad Tahir Akhtar, Wataru Mitsuhashi (UEC) EA2011-31 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
A new technique is proposed for a controlled injection of the noise to model the secondary acoustic path in the feedforward active noise control (ANC) system. In the proposed system, the tap weights of the adaptive
filter for modeling the secondary path are replicated to an additional filter, and a cost function for determining the opening and closing of the noise-injection is evaluated with the difference of the powers of errors from both filters. If the acoustic characteristics are altered in the secondary path after closing the noise injection, the detection of
outliers in the error from the modeling filter will provide a clue for reopening the injection. In this paper, the authors propose a simple algorithm to open and close the noise injection for modeling the secondary path. The results of numerical simulations show that the proposed technique improves the performance of noise cancellation without relying on the adaptive algorithms most often used in ANC systems. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Active Noise Control / Online Secondary Path Modeling / Injection Control / Outlier Detection / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 111, no. 89, EA2011-31, pp. 7-12, June 2011. |
Paper # |
EA2011-31 |
Date of Issue |
2011-06-16 (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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EA2011-31 |
Conference Information |
Committee |
EA |
Conference Date |
2011-06-23 - 2011-06-24 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Health Sci. Univ. of Hokkaido |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Engineering/Electro Acoustics, Musical Acoustics, Psychological and Physiological Acoustics, and Related Topics |
Paper Information |
Registration To |
EA |
Conference Code |
2011-06-EA |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Improvement of Noise Reduction Performance of ANC Systems with Online Secondary Path Modeling Technique using Two Secondary Path Models |
Sub Title (in English) |
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Keyword(1) |
Active Noise Control |
Keyword(2) |
Online Secondary Path Modeling |
Keyword(3) |
Injection Control |
Keyword(4) |
Outlier Detection |
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1st Author's Name |
Akihisa Oishi |
1st Author's Affiliation |
University of Electro-Communications (UEC) |
2nd Author's Name |
Muhammad Tahir Akhtar |
2nd Author's Affiliation |
University of Electro-Communications (UEC) |
3rd Author's Name |
Wataru Mitsuhashi |
3rd Author's Affiliation |
University of Electro-Communications (UEC) |
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Speaker |
Author-1 |
Date Time |
2011-06-23 14:00:00 |
Presentation Time |
30 minutes |
Registration for |
EA |
Paper # |
EA2011-31 |
Volume (vol) |
vol.111 |
Number (no) |
no.89 |
Page |
pp.7-12 |
#Pages |
6 |
Date of Issue |
2011-06-16 (EA) |
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