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Paper Abstract and Keywords
Presentation 2014-05-30 09:45
Relationship between Rain Attenuation Duration Time of Ku-Band Satellite Communications Links and Speeds of Rain Area Motion in Equatorial Region
Yasuyuki Maekawa, Keigo Takemoto, Akihiro Tama, Yoshiaki Shibagaki (Osaka Electro-Comm. Univ.)
Abstract (in Japanese) (See Japanese page) 
(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 decrease of time percentages in high attenuation range due to localized structure of the clouds. The duration time of rain attenuation is estimated from the horizontal distribution and moving speed of the X-band radar echoes. It is found that some of the duration time can be much longer than in Japan even for extremely large rainfall rate exceeding 70 mm/h.
Keyword (in Japanese) (See Japanese page) 
(in English) Satellite communications / Rain attenuation duration time / Ku-band / Equatorial region / Rain area motion / X-band radar / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 62, AP2014-29, pp. 59-62, May 2014.
Paper # AP2014-29 
Date of Issue 2014-05-22 (AP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee AP  
Conference Date 2014-05-29 - 2014-05-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Industory Support Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2014-05-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Relationship between Rain Attenuation Duration Time of Ku-Band Satellite Communications Links and Speeds of Rain Area Motion in Equatorial Region 
Sub Title (in English)  
Keyword(1) Satellite communications  
Keyword(2) Rain attenuation duration time  
Keyword(3) Ku-band  
Keyword(4) Equatorial region  
Keyword(5) Rain area motion  
Keyword(6) X-band radar  
Keyword(7)  
Keyword(8)  
1st Author's Name Yasuyuki Maekawa  
1st Author's Affiliation Osaka Electro-Communication University (Osaka Electro-Comm. Univ.)
2nd Author's Name Keigo Takemoto  
2nd Author's Affiliation Osaka Electro-Communication University (Osaka Electro-Comm. Univ.)
3rd Author's Name Akihiro Tama  
3rd Author's Affiliation Osaka Electro-Communication University (Osaka Electro-Comm. Univ.)
4th Author's Name Yoshiaki Shibagaki  
4th Author's Affiliation Osaka Electro-Communication University (Osaka Electro-Comm. Univ.)
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Speaker
Date Time 2014-05-30 09:45:00 
Presentation Time 25 
Registration for AP 
Paper # IEICE-AP2014-29 
Volume (vol) IEICE-114 
Number (no) no.62 
Page pp.59-62 
#Pages IEICE-4 
Date of Issue IEICE-AP-2014-05-22 


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