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Paper Abstract and Keywords
Presentation 2008-01-25 09:50
A leaky filtered-X RLS algorithm using an estimation error in the secondary path
Satoshi Ochiai, Eisuke Horita (Kanazawa Univ.) SIP2007-164 RCS2007-167
Abstract (in Japanese) (See Japanese page) 
(in English) A filtered-x algorithm has an issue that it can lead to an instability of an ANC system because of an error between the true and estimation parameters of the secondary path in the system to be generated by a change or an uncertainty or its path. The leaky RLS algorithm which introduces the leakage factor as one of the techniques of improving the numerical instability under finite-precision arithmetic for the ill-conditioned input signal is proposed. In this report, the stochastic analysis of the leaky filtered-x RLS (LFXRLS) algorithm is discussed in situations where the secondary path is imperfectly estimated. In addition, an effectiveness of the LFXRLS algorithm is examined through simulations on a computer.
Keyword (in Japanese) (See Japanese page) 
(in English) ANC system / adaptive filter / ridge regression / LRLS algorithm / Filtered-X algorithm / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 439, SIP2007-164, pp. 39-44, Jan. 2008.
Paper # SIP2007-164 
Date of Issue 2008-01-18 (SIP, RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 SIP2007-164 RCS2007-167

Conference Information
Committee RCS SIP  
Conference Date 2008-01-24 - 2008-01-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Hiroshima City Uni. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SIP 
Conference Code 2008-01-RCS-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A leaky filtered-X RLS algorithm using an estimation error in the secondary path 
Sub Title (in English)  
Keyword(1) ANC system  
Keyword(2) adaptive filter  
Keyword(3) ridge regression  
Keyword(4) LRLS algorithm  
Keyword(5) Filtered-X algorithm  
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1st Author's Name Satoshi Ochiai  
1st Author's Affiliation Kanazawa University (Kanazawa Univ.)
2nd Author's Name Eisuke Horita  
2nd Author's Affiliation Kanazawa University (Kanazawa Univ.)
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Speaker Author-1 
Date Time 2008-01-25 09:50:00 
Presentation Time 25 minutes 
Registration for SIP 
Paper # SIP2007-164, RCS2007-167 
Volume (vol) vol.107 
Number (no) no.439(SIP), no.441(RCS) 
Page pp.39-44 
#Pages
Date of Issue 2008-01-18 (SIP, RCS) 


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