| Presentation | 2015-07-30 Relationship between Rain Cloud Motion along the Propagation Path and Ground Wind Velocity around the Earth Station in Ku-Band Satellite Communications Links Yasuyuki Maekawa, Yoshiaki Shibagaki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Speeds and directions of the motion of rain areas that cause the attenuation of Ku-band satellite communications links are estimated from the broadcast satellite (BS) signal levels simultaneously obtained at Neyagawa campus of Osaka Electro-Communication University (Neyagawa, Osaka), its Shijonawate campus (Shijonawate, Osaka), and its high school (Moriguchi, Osaka). The speeds and directions of rain area motion are compared with the ground wind velocities observed by nearby AMeDAS stations at 3 locations from 2008 to 2011. As a result, a considerable relationship is found between them, and the ground wind directions still show correlation coefficients of around 0.5 with the directions of the rain area motion, although the directions tend to be aligned in the northeast-southwest direction along the area of Osaka plains. Thus, the AMeDAS data seems to be hopeful to determine the direction of satellite stations when the site diversity techniques are conducted. Also, the ground winds from southwest and northeast are shown to be primarily detected in day and night time periods, respectively, indicating that land and sea winds are superimposed on the winds associated with the rain front motions. So, some kind of corrections may be needed for the ground wind to be applied to the operation of the site diversity techniques. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Satellite communications / Rain attenuation / Ku band / Rain area motion / Ground wind velocity / AMeDAS |
| Paper # | AP2015-41 |
| Date of Issue | 2015-07-23 (AP) |
| Conference Information | |
| Committee | AP |
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| Conference Date | 2015/7/30(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Wakkanai Sougou Bunka Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Propagation Special, Antenna and Propagation |
| Chair | Keizo Cho(Chiba Inst. of Tech.) |
| Vice Chair | Hisato Iwai(Doshisha Univ.) |
| Secretary | Hisato Iwai(KDDI R&D Labs.) |
| Assistant | Yuichi Kimura(Saitama 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) | Relationship between Rain Cloud Motion along the Propagation Path and Ground Wind Velocity around the Earth Station in Ku-Band Satellite Communications Links |
| Sub Title (in English) | |
| Keyword(1) | Satellite communications |
| Keyword(2) | Rain attenuation |
| Keyword(3) | Ku band |
| Keyword(4) | Rain area motion |
| Keyword(5) | Ground wind velocity |
| Keyword(6) | AMeDAS |
| 1st Author's Name | Yasuyuki Maekawa |
| 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.) |
| Date | 2015-07-30 |
| Paper # | AP2015-41 |
| Volume (vol) | vol.115 |
| Number (no) | AP-164 |
| Page | pp.pp.11-14(AP), |
| #Pages | 4 |
| Date of Issue | 2015-07-23 (AP) |