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Paper Abstract and Keywords
Presentation 2015-06-09 10:20
Implementation of Bias Free Pre-inverse Active Noise Control with Sub Filter
Ryousuke Minagi, Kazushi Otsuki, Naoto Sasaoka, Yoshio Itoh (Tottori Univ.) SIS2015-10
Abstract (in Japanese) (See Japanese page) 
(in English) As an active Noise Control, filtered-x is widely used. Unfortunately, the filtered-x has a modeling error problem by second path characteristic change. Thus, the filtered-x ANC degrades its performance and become unstable. In order to solve the problem, a pre-inverse type ANC has been proposed. The method estimates the inverse transfer function of secondary path, and the filter which has the invers transfer function is adopted after a control filter. Therefore, an ANC can use a flat delayed signal instead of a filtered input noise, and then the ANC can becomes stable. However, since conventional pre-inverse type ANC uses a series adoptive filter to estimate the inverse transfer function, the estimation accuracy is degraded due to bias error. This paper adapts a sub filter which estimates secondary path as parallel type system identification. Thus, the inverse transfer function can be estimated with bias free. In the paper, the proposed ANC is implemented in DSP.
Keyword (in Japanese) (See Japanese page) 
(in English) feed forward type active noise control / Adaptive Filter / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 75, SIS2015-10, pp. 51-56, June 2015.
Paper # SIS2015-10 
Date of Issue 2015-06-01 (SIS) 
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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Conference Information
Committee SIS  
Conference Date 2015-06-08 - 2015-06-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Arkas SASEBO 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Smart Personal Systems, etc. 
Paper Information
Registration To SIS 
Conference Code 2015-06-SIS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Implementation of Bias Free Pre-inverse Active Noise Control with Sub Filter 
Sub Title (in English)  
Keyword(1) feed forward type active noise control  
Keyword(2) Adaptive Filter  
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1st Author's Name Ryousuke Minagi  
1st Author's Affiliation Tottori University (Tottori Univ.)
2nd Author's Name Kazushi Otsuki  
2nd Author's Affiliation Tottori University (Tottori Univ.)
3rd Author's Name Naoto Sasaoka  
3rd Author's Affiliation Tottori University (Tottori Univ.)
4th Author's Name Yoshio Itoh  
4th Author's Affiliation Tottori University (Tottori Univ.)
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Speaker Author-1 
Date Time 2015-06-09 10:20:00 
Presentation Time 20 minutes 
Registration for SIS 
Paper # SIS2015-10 
Volume (vol) vol.115 
Number (no) no.75 
Page pp.51-56 
#Pages 6 
Date of Issue 2015-06-01 (SIS) 

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