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| Presentation | 2021-10-08 11:00 Relationship between rain attenuation characteristics and rain area distribution on the propagation path of satellite communications links Yasuyuki Maekawa,, Yoshiaki Shibagaki (Osaka Electro-Commun. Univ.)  SAT2021-49 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Rain attenuation characteristics due to the passage of rain areas are discussed using the Ku-band BS satellite signal observations (11.84 GHz, elevation:41.3°, right-hand circular) conducted in Neyagawa, Osaka, from 1988 to 2019. The equivalent path lengths averaged over each rainfall event are not so much correlated with the ground wind velocity obtained from nearby AMeDAS. However, they show a considerable correlation with the wind velocity, similarly to the typhoon passage, when the wind is averaged between AMeDAS and the upper air wind inferred from the rain area motion. That is, the equivalent path lengths are increased as the average wind velocity is toward the azimuth direction of the satellite, while they are decreased as the average wind velocity is against the azimuth direction. The rain height corrected by the increase and decrease of the equivalent path lengths due to the wind velocity indicates that the rain area is almost contained within the 0℃ isotherm height, in the range of about 70% before the year of 2006 and about 90% after that year, respectively. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Satellite communications / Rain attenuation / Rainfall rate / Ku-band / Rain area passage / Equivalent path length / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 189, SAT2021-49, pp. 32-35, Oct. 2021. | |
| Paper # | SAT2021-49 | |
| Date of Issue | 2021-09-30 (SAT) | |
| 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) | |
| Download PDF | SAT2021-49 |
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| Conference Information | |
| Committee | SAT |
| Conference Date | 2021-10-07 - 2021-10-08 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SAT |
| Conference Code | 2021-10-SAT |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Relationship between rain attenuation characteristics and rain area distribution on the propagation path of satellite communications links |
| Sub Title (in English) | |
| Keyword(1) | Satellite communications |
| Keyword(2) | Rain attenuation |
| Keyword(3) | Rainfall rate |
| Keyword(4) | Ku-band |
| Keyword(5) | Rain area passage |
| Keyword(6) | Equivalent path length |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yasuyuki Maekawa, |
| 1st Author's Affiliation | Osaka Electro-Communication University (Osaka Electro-Commun. Univ.) |
| 2nd Author's Name | Yoshiaki Shibagaki |
| 2nd Author's Affiliation | Osaka Electro-Communication University (Osaka Electro-Commun. Univ.) |
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| Speaker | Author-1 |
| Date Time | 2021-10-08 11:00:00 |
| Presentation Time | 25 minutes |
| Registration for | SAT |
| Paper # | SAT2021-49 |
| Volume (vol) | vol.121 |
| Number (no) | no.189 |
| Page | pp.32-35 |
| #Pages | 4 |
| Date of Issue | 2021-09-30 (SAT) |
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