| Presentation | 2017-07-27 A Study on Rain Attenuation Characteristics of Ku-Band Up- and Down-Link Satellite Communications in the Tropical Region Yu Nishimura, Yoshiaki Shibagaki, Yasuyuki Maekawa, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Four-year rain attenuation statistics from January 2003 to September 2006 are obtained for both up and down links of Ku-band Superbird C, which connects the earth stations in Equatorial Atmosphere Radar (EAR) in West Sumatra, Indonesia and Research Institute of Sustainable Humanosphere (RISH) of Kyoto University in Uji, Kyoto. Yearly variation of the attenuation ratio of up link to down link is discussed in light of dominant rain cloud types in each year. The attenuation ratio at the earth station in EAR, on an average, shows fairy large variation from around 1.1 to 1.5 according to each rainfall event, yielding comparatively large values for the events with a single peak of attenuation and small values for those with the multiple peaks. This seems to be related to a tendency that the clouds passing through the propagation path may include larger raindrop size distribution as their scales become larger. The relationship between these rain cloud types and characteristics of equatorial climate should be further investigated, such as their yearly variation or difference between wet and dry seasons in the tropical region. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Satellite communications / Radio wave propagation / Ku band / Rain attenuation / Up and down link / Tropical region |
| Paper # | AP2017-54,SAT2017-10 |
| Date of Issue | 2017-07-19 (AP), 2017-07-20 (SAT) |
| Conference Information | |
| Committee | AP / SAT / SANE |
|---|---|
| Conference Date | 2017/7/26(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagoya Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Remote sensing, Radio propagation, Antennas and Propagation, Sattelite Communication |
| Chair | Jiro Hirokawa(Tokyo Tech.) / Toshinori Susuki(Tohoku Gakuin Univ.) / Sonosuke Fukushima(ENRI) |
| Vice Chair | Ryo Yamaguchi(SoftBank) / Hiroyuki Tsuji(NICT) / Fumihiro Yamashita(NTT) / Toshifumi Moriyama(Nagasaki Univ.) / Akitsugu Nadai(NICT) |
| Secretary | Ryo Yamaguchi(NTT DoCoMo) / Hiroyuki Tsuji(Saitama Univ.) / Fumihiro Yamashita(KDDI Research) / Toshifumi Moriyama(NICT) / Akitsugu Nadai(Mitsubishi Electric) |
| Assistant | Nobuyasu Takemura(Nippon Inst. of Tech.) / Satoshi Yamaguchi(Mitsubishi Electric) / / Manabu Akita(Univ. of Electro-Comm.) / Ryo Natsuaki(Univ. of Tokyo) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation / Technical Committee on Satellite Telecommunications / Technical Committee on Space, Aeronautical and Navigational Electronics |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Rain Attenuation Characteristics of Ku-Band Up- and Down-Link Satellite Communications in the Tropical Region |
| Sub Title (in English) | |
| Keyword(1) | Satellite communications |
| Keyword(2) | Radio wave propagation |
| Keyword(3) | Ku band |
| Keyword(4) | Rain attenuation |
| Keyword(5) | Up and down link |
| Keyword(6) | Tropical region |
| 1st Author's Name | Yu Nishimura |
| 1st Author's Affiliation | Osaka Electro-Communication University(Osaka Electro-Commun. Univ.-Commun. Univ.) |
| 2nd Author's Name | Yoshiaki Shibagaki |
| 2nd Author's Affiliation | Osaka Electro-Communication University(Osaka Electro-Commun. Univ.-Commun. Univ.) |
| 3rd Author's Name | Yasuyuki Maekawa |
| 3rd Author's Affiliation | Osaka Electro-Communication University(Osaka Electro-Commun. Univ.-Commun. Univ.) |
| Date | 2017-07-27 |
| Paper # | AP2017-54,SAT2017-10 |
| Volume (vol) | vol.117 |
| Number (no) | AP-150,SAT-152 |
| Page | pp.pp.51-54(AP), pp.23-26(SAT), |
| #Pages | 4 |
| Date of Issue | 2017-07-19 (AP), 2017-07-20 (SAT) |