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Paper Abstract and Keywords
Presentation 2007-01-26 16:05
Method of Far Field Estimation Considering with Unevenness of Radiation Source Modeling Results
Noriyuki Matuo, Yoshito Okubo, Nobuo Kuwabara (KIT), Masato Kawabata (Fukuoka Industrial Technology Center) EMCJ2006-109
Abstract (in Japanese) (See Japanese page) 
(in English) The method have been studied to estimate radiated emission at distance of 10m by modeling the radiation source from the measured data at distance of 3m because the measurement facilities applied the measurement at distance of 10m is expensive. However, the deviation between the measured and estimated value became more than 10dB under a certain condition. In this report, we investigate how to improve the estimation accuracy considering that the deviation between the estimation and measurement value is changed by the trial, and the probability obtaining the small deviation is more prior than that of the large deviation. In the investigation, we have 100 trials at the 150 MHz where the large deviation appears. The investigation present the trial results is categorized by the two groups, where one group has the small deviation and the other group has the large deviation, and the percentages of the trials with the small deviation group are more than 70 percent. These results indicate that the measurement accuracy can be improved to select only the small deviation group. The method was applied to estimate the calculated field radiated from the imitated equipment. The results indicated that the maximum deviation reduced from 10dB to 5dB for the horizontal polarization in the frequency range of 100MHz to 200MHz.
Keyword (in Japanese) (See Japanese page) 
(in English) CISPR / Far Field / Source Modeling / estimate radiated emission / / / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 508, EMCJ2006-109, pp. 63-68, Jan. 2007.
Paper # EMCJ2006-109 
Date of Issue 2007-01-19 (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 2007-01-26 - 2007-01-27 
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 2007-01-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Method of Far Field Estimation Considering with Unevenness of Radiation Source Modeling Results 
Sub Title (in English)  
Keyword(1) CISPR  
Keyword(2) Far Field  
Keyword(3) Source Modeling  
Keyword(4) estimate radiated emission  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Noriyuki Matuo  
1st Author's Affiliation Graduate School of Kyushu Institute of Technology (KIT)
2nd Author's Name Yoshito Okubo  
2nd Author's Affiliation Graduate School of Kyushu Institute of Technology (KIT)
3rd Author's Name Nobuo Kuwabara  
3rd Author's Affiliation Graduate School of Kyushu Institute of Technology (KIT)
4th Author's Name Masato Kawabata  
4th Author's Affiliation Fukuoka Industrial Technology Center (Fukuoka Industrial Technology Center)
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Speaker Author-1 
Date Time 2007-01-26 16:05:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2006-109 
Volume (vol) vol.106 
Number (no) no.508 
Page pp.63-68 
#Pages 6 
Date of Issue 2007-01-19 (EMCJ) 

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