Paper Abstract and Keywords |
Presentation |
2015-07-09 10:05
A Study of Evaluation Method for Electromagnetic Interference Affecting Digital Communication Systems Kotaro Ono, Ken Okamoto, Hidetoshi Tatemichi, Kazuhiro Takaya (NTT) EMCJ2015-31 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
CISPR has prepared regulations suppressing Electromagnetic interference (EMI) from electric and electronic devices in order to prevent EMI in wireless communication systems. As evaluation index for EMI, peak (PK), quasi-peak (QP) and average (AV) detections have been used. Particularly, the time constants used in QP detection were regulated on the basis of responses of analog circuits and human audition. Therefore, it is known that evaluations of EMI by PK/QP/AV detections don’t correlate with EMI affecting digital communication systems. However, the condition where PK/QP/AV can be applied has not been clarified, and the condition where PK/QP/AV cannot be applied has not been clarified too. Thus, in this report, as a study of evaluation method for EMI affecting digital communication systems, PK/QP/AV detections’ coverages were investigated experimentally, using asymmetric digital subscriber line (ADSL), which attempts to reconnect autonomously when communication conditions deteriorate. As a result, it has been clarified that evaluations for EMI by PK/QP/AV detections can be applied to influence to digital communication systems due to difference of frequency bandwidth of continuous wave. In contrast, it has been confirmed that evaluations for EMI by PK/QP/AV don’t correlate with digital communication systems when focusing on burst EMI. From this investigation, it has been clarified that influence to digital communication systems due to difference of frequency bandwidth of continuous wave can be evaluated appropriately by establishing tolerance of PK/QP/AV and there are cases where evaluations for EMI by PK/QP/AV detections don’t work properly when evaluating burst EMI. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Digital communication / ADSL / Electromagnetic interference / Peak / Quasi-peak / Average / Duration / |
Reference Info. |
IEICE Tech. Rep., vol. 115, no. 131, EMCJ2015-31, pp. 1-5, July 2015. |
Paper # |
EMCJ2015-31 |
Date of Issue |
2015-07-02 (EMCJ) |
ISSN |
Print edition: ISSN 0913-5685 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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EMCJ2015-31 |
Conference Information |
Committee |
EMCJ |
Conference Date |
2015-07-09 - 2015-07-09 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Young Scientist Meeting |
Paper Information |
Registration To |
EMCJ |
Conference Code |
2015-07-EMCJ |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Study of Evaluation Method for Electromagnetic Interference Affecting Digital Communication Systems |
Sub Title (in English) |
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Keyword(1) |
Digital communication |
Keyword(2) |
ADSL |
Keyword(3) |
Electromagnetic interference |
Keyword(4) |
Peak |
Keyword(5) |
Quasi-peak |
Keyword(6) |
Average |
Keyword(7) |
Duration |
Keyword(8) |
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1st Author's Name |
Kotaro Ono |
1st Author's Affiliation |
Nippon Telegraph and Telephone Corporation (NTT) |
2nd Author's Name |
Ken Okamoto |
2nd Author's Affiliation |
Nippon Telegraph and Telephone Corporation (NTT) |
3rd Author's Name |
Hidetoshi Tatemichi |
3rd Author's Affiliation |
Nippon Telegraph and Telephone Corporation (NTT) |
4th Author's Name |
Kazuhiro Takaya |
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Nippon Telegraph and Telephone Corporation (NTT) |
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Speaker |
Author-1 |
Date Time |
2015-07-09 10:05:00 |
Presentation Time |
25 minutes |
Registration for |
EMCJ |
Paper # |
EMCJ2015-31 |
Volume (vol) |
vol.115 |
Number (no) |
no.131 |
Page |
pp.1-5 |
#Pages |
5 |
Date of Issue |
2015-07-02 (EMCJ) |
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