| IEICE Technical Committee Submission System Conference Paper's Information |
Online Proceedings [Sign in] Tech. Rep. Archives |
| Go Top Page | Go Previous | [Japanese] / [English] |
| Paper Abstract and Keywords | ||
| Presentation | 2010-01-21 15:05 Leaked Emissions due to the In-House Broadband Powerline Communications (2) -- Measurements by HF Radio Astronomy Antennas -- Masatoshi Ohishi (National Astronomical Observatory of Japan), Masahiro Kitagawa (Osaka Univ.), Hiroaki Misawa, Fuminori Tsuchiya (Tohoku Univ.)  EMCJ2009-108 |
|
| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | There have been the concerns that the Japanese broadband Power Line Communications (PLC) may cause harmful interference to a variety of radio services. It is thought that the interference would be maximal for the radio astronomy observations where extremely weak signals are observed by very sensitive receiving systems. We carried out measurements of the leaked emissions caused by PLC modems by using HF radio astronomy antennas that are actually used. The measurements were conducted at the Iitate observatory of the Tohoku university, and it was found that the leaked emissions from the house were detected even at the distance of about 130m, and that the intensities are stronger than the threshold levels of interference harmful to the radio astronomy observations by more than a factor of about 50,000. This result would indicate that the radio astronomy observations in the HF band could be strongly disturbed by the PLC modems. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | broadband power line communications / leaked electric field / radio astronomy / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 370, EMCJ2009-108, pp. 57-62, Jan. 2010. | |
| Paper # | EMCJ2009-108 | |
| Date of Issue | 2010-01-14 (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) | |
| Download PDF | EMCJ2009-108 |
|
| Conference Information | |
| Committee | EMCJ |
| Conference Date | 2010-01-21 - 2010-01-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | University of the Ryukyus |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EMCJ |
| Conference Code | 2010-01-EMCJ |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Leaked Emissions due to the In-House Broadband Powerline Communications (2) |
| Sub Title (in English) | Measurements by HF Radio Astronomy Antennas |
| Keyword(1) | broadband power line communications |
| Keyword(2) | leaked electric field |
| Keyword(3) | radio astronomy |
| Keyword(4) | |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Masatoshi Ohishi |
| 1st Author's Affiliation | National Astronomical Observatory of Japan (National Astronomical Observatory of Japan) |
| 2nd Author's Name | Masahiro Kitagawa |
| 2nd Author's Affiliation | Osaka University (Osaka Univ.) |
| 3rd Author's Name | Hiroaki Misawa |
| 3rd Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 4th Author's Name | Fuminori Tsuchiya |
| 4th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 5th Author's Name | |
| 5th Author's Affiliation | () |
| 6th Author's Name | |
| 6th Author's Affiliation | () |
| 7th Author's Name | |
| 7th Author's Affiliation | () |
| 8th Author's Name | |
| 8th Author's Affiliation | () |
| 9th Author's Name | |
| 9th Author's Affiliation | () |
| 10th Author's Name | |
| 10th Author's Affiliation | () |
| 11th Author's Name | |
| 11th Author's Affiliation | () |
| 12th Author's Name | |
| 12th Author's Affiliation | () |
| 13th Author's Name | |
| 13th Author's Affiliation | () |
| 14th Author's Name | |
| 14th Author's Affiliation | () |
| 15th Author's Name | |
| 15th Author's Affiliation | () |
| 16th Author's Name | |
| 16th Author's Affiliation | () |
| 17th Author's Name | |
| 17th Author's Affiliation | () |
| 18th Author's Name | |
| 18th Author's Affiliation | () |
| Speaker | Author-1 |
| Date Time | 2010-01-21 15:05:00 |
| Presentation Time | 25 minutes |
| Registration for | EMCJ |
| Paper # | EMCJ2009-108 |
| Volume (vol) | vol.109 |
| Number (no) | no.370 |
| Page | pp.57-62 |
| #Pages | 6 |
| Date of Issue | 2010-01-14 (EMCJ) |
[Return to Top Page]