| Presentation | 2016-07-22 Long-term Statistics of Rain Attenuation and Their Recent Trend in Ku-Band Satellite Communications Links Hidemi Miura, Yasuyuki Maekawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The long-term rain attenuation statistics of cumulative time percentages are obtained from Ku band satellite signal observations conducted in Osaka Electro-Communication University, Neyagawa, Osaka, from 1988 to 2016, and compared with the prediction models based on the ITU-R Recommendations . Although the long-term statistics reported earlier for about 20 years up to 2006 were in very good agreement with the recent ITU-R predictions obtained from the 0.01% rainfall rate, those calculated newly for 28 years including the last ten years are found to be slightly larger than the ITU-R predictions. The increases of the cumulative time percentages may result from recent tendencies that the occurrence of rain attenuation due to tropical-type rainfall such as shower and typhoon increases in summer time, and that the average ground temperature at rain time becomes higher by 1-2°primarily in summer time. New prediction models which take into account recent climate change and meteorological conditions will be expected in the near future. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Satellite communications / Ku-band / Rain attenuation / Rainfall rate / Long-term statistics / Prediction methods |
| Paper # | AP2016-58,SAT2016-24 |
| Date of Issue | 2016-07-13 (AP), 2016-07-14 (SAT) |
| Conference Information | |
| Committee | AP / SAT / SANE |
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| Conference Date | 2016/7/20(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Otaru port marina |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Remote sensing, Radio propagation, Antennas and Propagation, Sattelite Communication |
| Chair | Keizo Cho(Chiba Inst. of Tech.) / Takatoshi Sugiyama(Kogakuin Univ.) / Hirokazu Kobayashi(Osaka Inst. of Tech.) |
| Vice Chair | Hisato Iwai(Doshisha Univ.) / Toshinori Susuki(Tohoku Gakuin Univ.) / Hiroyuki Tsuji(NICT) / Takahide Mizuno(JAXA) / Toshifumi Moriyama(Nagasaki Univ.) |
| Secretary | Hisato Iwai(Niigata Univ.) / Toshinori Susuki(NTT DoCoMo) / Hiroyuki Tsuji(NTT) / Takahide Mizuno(KDDI R&D Labs.) / Toshifumi Moriyama(JAXA) |
| Assistant | Nobuyasu Takemura(Nippon Inst. of Tech.) / / Atsushi Kezuka(ENRI) / Manabu Akita(Univ. of Electro-Comm.) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation / Technical Committee on Satellite Telecommunications / Technical Committee on Space, Aeronautical and Navigational Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Long-term Statistics of Rain Attenuation and Their Recent Trend in Ku-Band Satellite Communications Links |
| Sub Title (in English) | |
| Keyword(1) | Satellite communications |
| Keyword(2) | Ku-band |
| Keyword(3) | Rain attenuation |
| Keyword(4) | Rainfall rate |
| Keyword(5) | Long-term statistics |
| Keyword(6) | Prediction methods |
| 1st Author's Name | Hidemi Miura |
| 1st Author's Affiliation | Osaka Electro-Communication University(Osaka Electro-Com. Univ.) |
| 2nd Author's Name | Yasuyuki Maekawa |
| 2nd Author's Affiliation | Osaka Electro-Communication University(Osaka Electro-Com. Univ.) |
| Date | 2016-07-22 |
| Paper # | AP2016-58,SAT2016-24 |
| Volume (vol) | vol.116 |
| Number (no) | AP-142,SAT-144 |
| Page | pp.pp.119-122(AP), pp.73-76(SAT), |
| #Pages | 4 |
| Date of Issue | 2016-07-13 (AP), 2016-07-14 (SAT) |