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Paper Abstract and Keywords
Presentation 2018-01-19 09:55
Determination of High Priority Countermeasures to Reduce Electromagnetic Interference by Using Noise Source Amplitude Modulation and Evaluation of its Effect
Shinpei Yoshino, Chiaki Ishida, Kengo Iokibe, Yoshitaka Toyota (Okayama Univ.) EMCJ2017-96
Abstract (in Japanese) (See Japanese page) 
(in English) For low cost determination of noise sources to reduce electromagnetic interference (EMI) , we have proposed a method named noise source amplitude modulation and correlation analysis (NSM-CS) to identify devices dominantly contributing to EMI. In this study, we applied the NSM-CS method to the PCB with multiple semiconductor devices and identified devices dominantly contributing to EMI from radiation measurement. Amplitude modulation of noise sources was implemented using the FPGA mounted on the PCB. Clock signal of 50 MHz was modulated by PRBSs with low cross-correlations less than 0.2. According to measured contribution to radiation, high priority noise sources that should be counteracted to reduce EMI to meet the regulation were determined. Moreover we took countermeasures to the high priority devices and found that radiation was reduced more than when countermeasures were put to low priority devices.
Keyword (in Japanese) (See Japanese page) 
(in English) electromagnetic interference / noise source amplitude modulation / correlation analysis / determination of noise source / pseudo-random bit sequence / far-field emission / zero span measurement /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 384, EMCJ2017-96, pp. 49-54, Jan. 2018.
Paper # EMCJ2017-96 
Date of Issue 2018-01-11 (EMCJ) 
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)
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Conference Information
Committee EMCJ  
Conference Date 2018-01-18 - 2018-01-19 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) Communication, PCB, Information Security, EMC 
Paper Information
Registration To EMCJ 
Conference Code 2018-01-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Determination of High Priority Countermeasures to Reduce Electromagnetic Interference by Using Noise Source Amplitude Modulation and Evaluation of its Effect 
Sub Title (in English)  
Keyword(1) electromagnetic interference  
Keyword(2) noise source amplitude modulation  
Keyword(3) correlation analysis  
Keyword(4) determination of noise source  
Keyword(5) pseudo-random bit sequence  
Keyword(6) far-field emission  
Keyword(7) zero span measurement  
Keyword(8)  
1st Author's Name Shinpei Yoshino  
1st Author's Affiliation Okayama University (Okayama Univ.)
2nd Author's Name Chiaki Ishida  
2nd Author's Affiliation Okayama University (Okayama Univ.)
3rd Author's Name Kengo Iokibe  
3rd Author's Affiliation Okayama University (Okayama Univ.)
4th Author's Name Yoshitaka Toyota  
4th Author's Affiliation Okayama University (Okayama Univ.)
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Speaker Author-1 
Date Time 2018-01-19 09:55:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2017-96 
Volume (vol) vol.117 
Number (no) no.384 
Page pp.49-54 
#Pages 6 
Date of Issue 2018-01-11 (EMCJ) 

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