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Paper Abstract and Keywords
Presentation 2017-05-25 14:40
Local linear predictive coding for characterizing electro-magnetic noise
Fumihiko Ishiyama, Yuichiro Okugawa, Yoshiharu Akiyama (NTT) SIP2017-9 IE2017-9 PRMU2017-9 MI2017-9
Abstract (in Japanese) (See Japanese page) 
(in English) We are investigating methods of characterizing electric noise to identify the source of the electric noise. For the purpose, we are investigating methods based on the linear predictive coding (LPC). We applied the method to characterizing acoustic noise, and we developed a spectral analyzer which displays spectrum based on the method. Yule-Walker equation is used to solve linear predictive coding, and the aim of the equation is to reduce calculation cost by replacing autocorrelation matrix with a Toeplitz matrix to apply Levinson-Durbin algorithm. The time series for the analysis is replaced with a periodic time series by the replacement, and is not suit for the analysis of transient signal. Therefore, we introduced a method which does not apply above replacement and applies LPC locally, to obtain local characteristics of transient signal.
Keyword (in Japanese) (See Japanese page) 
(in English) transient signal analysis / electro-magnetic noise / local linear predictive coding / / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 47, SIP2017-9, pp. 49-54, May 2017.
Paper # SIP2017-9 
Date of Issue 2017-05-18 (SIP, IE, PRMU, MI) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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 SIP2017-9 IE2017-9 PRMU2017-9 MI2017-9

Conference Information
Committee PRMU IE MI SIP  
Conference Date 2017-05-25 - 2017-05-26 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To SIP 
Conference Code 2017-05-PRMU-IE-MI-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Local linear predictive coding for characterizing electro-magnetic noise 
Sub Title (in English)  
Keyword(1) transient signal analysis  
Keyword(2) electro-magnetic noise  
Keyword(3) local linear predictive coding  
1st Author's Name Fumihiko Ishiyama  
1st Author's Affiliation NTT (NTT)
2nd Author's Name Yuichiro Okugawa  
2nd Author's Affiliation NTT (NTT)
3rd Author's Name Yoshiharu Akiyama  
3rd Author's Affiliation NTT (NTT)
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Speaker Author-1 
Date Time 2017-05-25 14:40:00 
Presentation Time 30 minutes 
Registration for SIP 
Paper # SIP2017-9, IE2017-9, PRMU2017-9, MI2017-9 
Volume (vol) vol.117 
Number (no) no.47(SIP), no.48(IE), no.49(PRMU), no.50(MI) 
Page pp.49-54 
Date of Issue 2017-05-18 (SIP, IE, PRMU, MI) 

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