| Presentation | 2015-10-08 Characteristics of Rain Attenuation Time Durations of Ku-Band Satellite Communications Links in Tropical Region Akihiro Tama, Yoshiaki Shibagaki, Yasuyuki Maekawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Rain attenuation statistics are obtained for both up and down links of Ku-band Superbird C, which connects the earth stations at Equatorial Atmosphere Radar (EAR) in West Sumatra, Indonesia and Research Institute of Sustainable Humanosphere (RISH) of Kyoto University in Uji, Kyoto during four years from Sept.2002 to Sept.2006. The rain attenuation and its annual statistics are simultaneously calculated from the precipitation cloud echoes measured by the X-band meteorological radar, being in good agreement with the direct measurements by the satellite signals. The radar observations also indicate the core of the precipitating clouds passes over EAR at the speed of about 5 m/s, on an average. This value is much slower than that of the precipitating clouds in Japan, which is usually 10-30 m/s, and seems to give rise to considerably longer duration time of the rain attention in both wet and dry seasons. The slower moving speed is also confirmed by the atmospheric motions directly measured by EAR in the higher altitude. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Ku band / Satellite communications / Rain attenuation / Duration time / Rain area motion speed / Wet and dry Season |
| Paper # | SAT2015-46 |
| Date of Issue | 2015-09-30 (SAT) |
| Conference Information | |
| Committee | SAT |
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| Conference Date | 2015/10/7(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka University Nakanoshima Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Satellite Communications, etc. (JC-SAT 2015) |
| Chair | Morio Toyoshima(NICT) |
| Vice Chair | Takatoshi Sugiyama(Kogakuin Univ.) / Toshinori Susuki(Tohoku Gakuin Univ.) |
| Secretary | Takatoshi Sugiyama(NICT) / Toshinori Susuki(NTT) |
| Assistant | |
| Paper Information | |
| Registration To | Technical Committee on Satellite Telecommunications |
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| Language | ENG-JTITLE |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Characteristics of Rain Attenuation Time Durations of Ku-Band Satellite Communications Links in Tropical Region |
| Sub Title (in English) | |
| Keyword(1) | Ku band |
| Keyword(2) | Satellite communications |
| Keyword(3) | Rain attenuation |
| Keyword(4) | Duration time |
| Keyword(5) | Rain area motion speed |
| Keyword(6) | Wet and dry Season |
| 1st Author's Name | Akihiro Tama |
| 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.) |
| Date | 2015-10-08 |
| Paper # | SAT2015-46 |
| Volume (vol) | vol.115 |
| Number (no) | SAT-241 |
| Page | pp.pp.171-174(SAT), |
| #Pages | 4 |
| Date of Issue | 2015-09-30 (SAT) |