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| Presentation | 2014-01-24 09:30 A study on the effects of rain area motion and ground wind velocity on rain attenuation characteristics in Ku-band satellite communications links Yasuyuki Maekawa, Yutaka Inamori, Takashi Harada, Yoshiaki Shibagaki (Osaka Electro-Comm. Univ.)  AP2013-159 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Speeds and directions of the motion of rain areas that cause the attenuation of Ku-band satellite communications links are estimated from the broadcast satellite (BS) signal levels simultaneously obtained at Osaka Electro-Communication University (OECU; Neyagawa, Osaka), the Research Institute for Sustainable Humanosphere (RISH; Uji, Kyoto) and the Shigaraki MU radar observatory (Koga, Shiga) of Kyoto University. The speeds and directions of rain area motion are compared with the ground wind velocities observed by nearby AMeDAS stations at 4 locations from 2008 to 2011. As a result, a considerable relationship is found between them, and the ground wind directions show correlation coefficients of around 0.6 with the directions of the rain area motion although the directions tend to be rotated slightly anti-clockwise on the ground. Thus, the AMeDAS data seems to be important to determine the direction of satellite stations when the site diversity techniques are conducted. The L-band boundary layer radar simultaneously observed the wind velocities at the heights of 0.5-5 km, and indicated that the wind speeds rapidly decrease below 2km and approach those observed by the AMeDAS. Also, the rain area motions are shown to be similar to wind velocities at 2-3 km height, as well as the MU radar observations. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Satellite Communications / Rain attenuation / Ku band / Rain area motion / Wind velocity / AMeDAS / / | |
| Reference Info. | IEICE Tech. Rep., vol. 113, no. 384, AP2013-159, pp. 147-150, Jan. 2014. | |
| Paper # | AP2013-159 | |
| Date of Issue | 2014-01-15 (AP) | |
| 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 | AP2013-159 |
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| Conference Information | |
| Committee | AP |
| Conference Date | 2014-01-22 - 2014-01-24 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hozan Hall (Kagoshima Prefectural Culture Center) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antennas and Propagation |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2014-01-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study on the effects of rain area motion and ground wind velocity on rain attenuation characteristics in Ku-band satellite communications links |
| Sub Title (in English) | |
| Keyword(1) | Satellite Communications |
| Keyword(2) | Rain attenuation |
| Keyword(3) | Ku band |
| Keyword(4) | Rain area motion |
| Keyword(5) | Wind velocity |
| Keyword(6) | AMeDAS |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yasuyuki Maekawa |
| 1st Author's Affiliation | Osaka Electro-Communication University (Osaka Electro-Comm. Univ.) |
| 2nd Author's Name | Yutaka Inamori |
| 2nd Author's Affiliation | Osaka Electro-Communication University (Osaka Electro-Comm. Univ.) |
| 3rd Author's Name | Takashi Harada |
| 3rd Author's Affiliation | Osaka Electro-Communication University (Osaka Electro-Comm. Univ.) |
| 4th Author's Name | Yoshiaki Shibagaki |
| 4th Author's Affiliation | Osaka Electro-Communication University (Osaka Electro-Comm. Univ.) |
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| Speaker | Author-1 |
| Date Time | 2014-01-24 09:30:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2013-159 |
| Volume (vol) | vol.113 |
| Number (no) | no.384 |
| Page | pp.147-150 |
| #Pages | 4 |
| Date of Issue | 2014-01-15 (AP) |
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