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Paper Abstract and Keywords
Presentation 2026-05-29 10:20
Application of a Noise-Source Contribution Estimation Method Based on Near-Field and Far-Field Information to a Single-Board Computer
Hiroyasu Sano (Tokyo Metropolitan Industrial), Kenta Umebayashi (Tokyo Univ. of Agriculture and Technology), Satoshi Suzuki, Hidekatsu Sasaki, Yasuaki Kaneda (Tokyo Metropolitan Industrial) EMCJ2026-9
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a method for extracting contribution candidates for radiated emissions around 220–260 MHz in a Raspberry Pi 4 Model B. In the proposed method, a reference ROI extracted from asynchronously measured far-field data is compared with time intervals at each near-field measurement point, and the candidates are ranked based on an overall agreement measure integrating four indicators: mean spectrum, spectral kurtosis, amplitude-envelope autocorrelation, and APD. The results show that HDMI-related components are strong candidates contributing to the radiated emission around 220–260 MHz. Furthermore, comparison with synchronous measurement results confirms that the ranking obtained from the asynchronous analysis is consistent with the tendency observed in the synchronous measurements. These findings indicate that the proposed method is effective for extracting dominant contribution candidates from asynchronously measured far-field data.
Keyword (in Japanese) (See Japanese page) 
(in English) EMC / radiated noise / noise source separation / Near-field electromagnetic fields / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 41, EMCJ2026-9, pp. 41-46, May 2026.
Paper # EMCJ2026-9 
Date of Issue 2026-05-21 (EMCJ) 
ISSN 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 EMCJ IEE-SPC IEE-EMC  
Conference Date 2026-05-28 - 2026-05-29 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2026-05-EMCJ-SPC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Application of a Noise-Source Contribution Estimation Method Based on Near-Field and Far-Field Information to a Single-Board Computer 
Sub Title (in English)  
Keyword(1) EMC  
Keyword(2) radiated noise  
Keyword(3) noise source separation  
Keyword(4) Near-field electromagnetic fields  
Keyword(5)  
Keyword(6)  
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1st Author's Name Hiroyasu Sano  
1st Author's Affiliation Tokyo Metropolitan Industrial Technology Research Institute (Tokyo Metropolitan Industrial)
2nd Author's Name Kenta Umebayashi  
2nd Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo Univ. of Agriculture and Technology)
3rd Author's Name Satoshi Suzuki  
3rd Author's Affiliation Tokyo Metropolitan Industrial Technology Research Institute (Tokyo Metropolitan Industrial)
4th Author's Name Hidekatsu Sasaki  
4th Author's Affiliation Tokyo Metropolitan Industrial Technology Research Institute (Tokyo Metropolitan Industrial)
5th Author's Name Yasuaki Kaneda  
5th Author's Affiliation Tokyo Metropolitan Industrial Technology Research Institute (Tokyo Metropolitan Industrial)
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Speaker Author-1 
Date Time 2026-05-29 10:20:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2026-9 
Volume (vol) vol.126 
Number (no) no.41 
Page pp.41-46 
#Pages 6 
Date of Issue 2026-05-21 (EMCJ) 

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