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Paper Abstract and Keywords
Presentation 2015-10-08 16:35
Characteristics of Rain Attenuation Time Durations of Ku-Band Satellite Communications Links in Tropical Region
Akihiro Tama, Yoshiaki Shibagaki, Yasuyuki Maekawa (Osaka Electro-Commun. Univ.) SAT2015-46
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 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) 
(in English) Ku band / Satellite communications / Rain attenuation / Duration time / Rain area motion speed / Wet and dry Season / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 241, SAT2015-46, pp. 171-174, Oct. 2015.
Paper # SAT2015-46 
Date of Issue 2015-09-30 (SAT) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF SAT2015-46

Conference Information
Committee SAT  
Conference Date 2015-10-07 - 2015-10-08 
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) 
Paper Information
Registration To SAT 
Conference Code 2015-10-SAT 
Language English (Japanese title is available) 
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.)
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Date Time 2015-10-08 16:35:00 
Presentation Time 25 
Registration for SAT 
Paper # IEICE-SAT2015-46 
Volume (vol) IEICE-115 
Number (no) no.241 
Page pp.171-174 
#Pages IEICE-4 
Date of Issue IEICE-SAT-2015-09-30 

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