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| Presentation | 2022-10-06 16:05 Recent increase in rain attenuation statistics of Ku-band satellite communications links and its relation to the climate change Shoya Funo, Yoshiaki Shibagaki, Yasuyuki Maekawa (Osaka Electro-Commun. Univ.)  SAT2022-47 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Rain attenuation statistics of the Ku-band BS radio wave (11.84 GHz) measured over 30 years at Osaka Electro-Communication University (OECU, Neyagawa City, Osaka Prefecture) show a remarkable increase in the occurrence time percentages since 2006. In particular, we will focus on the increasing tendency of the attenuation value corresponding to the time rate of 0.01%, and describe the results of a detailed comparison with the ITU-R recommended value. In addition, it is pointed out that the annual average rain area equivalent path length calculated from the specific attenuation α [dB/km] has significantly increased since 2006 compared to the ITU-R recommendations. Also, it is found that the equivalent path length is related to the increase in sea surface temperature in the waters near Japan, as well as that of the Pacific Ocean or the Indian Ocean. Especially after 2006, the correlation with the sea surface temperature of the Indian Ocean is shown to become higher. Therefore, it is confirmed that the rainfall attenuation statistics are strongly affected by global climate change such as the Indian Ocean, similarly to the recent weather conditions in Japan. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Satellite communications / Rain attenuation / Rainfall rate / Ku-band / Climate change / Sea surface temperature / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 199, SAT2022-47, pp. 16-19, Oct. 2022. | |
| Paper # | SAT2022-47 | |
| Date of Issue | 2022-09-29 (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 | SAT2022-47 |
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| Conference Information | |
| Committee | SAT KOSST |
| Conference Date | 2022-10-06 - 2022-10-07 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SAT |
| Conference Code | 2022-10-SAT |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Recent increase in rain attenuation statistics of Ku-band satellite communications links and its relation to the climate change |
| Sub Title (in English) | |
| Keyword(1) | Satellite communications |
| Keyword(2) | Rain attenuation |
| Keyword(3) | Rainfall rate |
| Keyword(4) | Ku-band |
| Keyword(5) | Climate change |
| Keyword(6) | Sea surface temperature |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Shoya Funo |
| 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.) |
| 3rd Author's Name | Yasuyuki Maekawa |
| 3rd Author's Affiliation | Osaka Electro-Communication University (Osaka Electro-Commun. Univ.) |
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| Speaker | Author-1 |
| Date Time | 2022-10-06 16:05:00 |
| Presentation Time | 25 minutes |
| Registration for | SAT |
| Paper # | SAT2022-47 |
| Volume (vol) | vol.122 |
| Number (no) | no.199 |
| Page | pp.16-19 |
| #Pages | 4 |
| Date of Issue | 2022-09-29 (SAT) |
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