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Paper Abstract and Keywords
Presentation 2017-07-27 11:00
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 (Osaka Electro-Commun. Univ.-Commun. Univ.) AP2017-54 SAT2017-10
Abstract (in Japanese) (See Japanese page) 
(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) 
(in English) Satellite communications / Radio wave propagation / Ku band / Rain attenuation / Up and down link / Tropical region / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 152, SAT2017-10, pp. 23-26, July 2017.
Paper # SAT2017-10 
Date of Issue 2017-07-19 (AP), 2017-07-20 (SAT) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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 AP2017-54 SAT2017-10

Conference Information
Committee AP SAT SANE  
Conference Date 2017-07-26 - 2017-07-28 
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 
Paper Information
Registration To SAT 
Conference Code 2017-07-AP-SAT-SANE 
Language Japanese 
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  
Keyword(7)  
Keyword(8)  
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.)
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Speaker Author-1 
Date Time 2017-07-27 11:00:00 
Presentation Time 25 minutes 
Registration for SAT 
Paper # AP2017-54, SAT2017-10 
Volume (vol) vol.117 
Number (no) no.150(AP), no.152(SAT) 
Page pp.51-54(AP), pp.23-26(SAT) 
#Pages 4 
Date of Issue 2017-07-19 (AP), 2017-07-20 (SAT) 

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