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Paper Abstract and Keywords
Presentation 2014-01-24 09:30
A study on the effects of rain area motion and ground wind velocity on rain attenuation characteristics in Ku-band satellite communications links
Yasuyuki Maekawa, Yutaka Inamori, Takashi Harada, Yoshiaki Shibagaki (Osaka Electro-Comm. Univ.) AP2013-159
Abstract (in Japanese) (See Japanese page) 
(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 Osaka Electro-Communication University (OECU; Neyagawa, Osaka), the Research Institute for Sustainable Humanosphere (RISH; Uji, Kyoto) and the Shigaraki MU radar observatory (Koga, Shiga) of Kyoto University. The speeds and directions of rain area motion are compared with the ground wind velocities observed by nearby AMeDAS stations at 4 locations from 2008 to 2011. As a result, a considerable relationship is found between them, and the ground wind directions show correlation coefficients of around 0.6 with the directions of the rain area motion although the directions tend to be rotated slightly anti-clockwise on the ground. Thus, the AMeDAS data seems to be important to determine the direction of satellite stations when the site diversity techniques are conducted. The L-band boundary layer radar simultaneously observed the wind velocities at the heights of 0.5-5 km, and indicated that the wind speeds rapidly decrease below 2km and approach those observed by the AMeDAS. Also, the rain area motions are shown to be similar to wind velocities at 2-3 km height, as well as the MU radar observations.
Keyword (in Japanese) (See Japanese page) 
(in English) Satellite Communications / Rain attenuation / Ku band / Rain area motion / Wind velocity / AMeDAS / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 384, AP2013-159, pp. 147-150, Jan. 2014.
Paper # AP2013-159 
Date of Issue 2014-01-15 (AP) 
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 AP2013-159

Conference Information
Committee AP  
Conference Date 2014-01-22 - 2014-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Hozan Hall (Kagoshima Prefectural Culture Center) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2014-01-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on the effects of rain area motion and ground wind velocity on rain attenuation characteristics 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) Wind velocity  
Keyword(6) AMeDAS  
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 Yutaka Inamori  
2nd Author's Affiliation Osaka Electro-Communication University (Osaka Electro-Comm. Univ.)
3rd Author's Name Takashi Harada  
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 Author-1 
Date Time 2014-01-24 09:30:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2013-159 
Volume (vol) vol.113 
Number (no) no.384 
Page pp.147-150 
#Pages 4 
Date of Issue 2014-01-15 (AP) 

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