| Presentation | 2021-10-07 [Tutorial Lecture] A Study on the Measurement and Estimation Methods of Rain Attenuation Characteristics in Satellite Communications Links Yasuyuki Maekawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Rain attenuation characteristics of Ka and Ku band satellite communication links are presented using the domestic CS (19.45 GHz) and BS (11.84 GHz) signal levels observed at Osaka Electro-Communication University from 1986 to 2006 at Neyagawa, Osaka. Specifically, statistical calculation methods are introduced for yearly cumulative time percentages, worst month time percentages, and frequency scaling. Also, the prediction methods of ITU-R recommendations are explained for these statistics. The long-term cumulative time percentages of both frequency bands are in good agreement with ITU-R predictions. However, the yearly time percentages show fairly large variations, which seem to be caused by dominant rainfall types such as convective precipitation in addition to yearly rainfall. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Satellite communications / Rain attenuation statistics / Rainfall rate / Worst month statistics / Frequency scaling / ITU-R recommendation |
| Paper # | AP2021-68 |
| Date of Issue | 2021-09-30 (AP) |
| Conference Information | |
| Committee | AP |
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| Conference Date | 2021/10/7(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Student Session, Antennas and Propagation |
| Chair | Hiroshi Yamada(Niigata Univ.) |
| Vice Chair | Mitoshi Fujimoto(Fukui Univ) |
| Secretary | Mitoshi Fujimoto(NTT DOCOMO) |
| Assistant | Dr. Kim(Niigata Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Tutorial Lecture] A Study on the Measurement and Estimation Methods of Rain Attenuation Characteristics in Satellite Communications Links |
| Sub Title (in English) | |
| Keyword(1) | Satellite communications |
| Keyword(2) | Rain attenuation statistics |
| Keyword(3) | Rainfall rate |
| Keyword(4) | Worst month statistics |
| Keyword(5) | Frequency scaling |
| Keyword(6) | ITU-R recommendation |
| 1st Author's Name | Yasuyuki Maekawa |
| 1st Author's Affiliation | Osaka Electro-Communication University(Osaka Electro-Commun. Univ.) |
| Date | 2021-10-07 |
| Paper # | AP2021-68 |
| Volume (vol) | vol.121 |
| Number (no) | AP-191 |
| Page | pp.pp.1-6(AP), |
| #Pages | 6 |
| Date of Issue | 2021-09-30 (AP) |