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Paper Abstract and Keywords
Presentation 2015-07-30 11:00
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 (Osaka Electro-Commun. Univ.) AP2015-41
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 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) 
(in English) Satellite communications / Rain attenuation / Ku band / Rain area motion / Ground wind velocity / AMeDAS / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 164, AP2015-41, pp. 11-14, July 2015.
Paper # AP2015-41 
Date of Issue 2015-07-23 (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 AP2015-41

Conference Information
Committee AP  
Conference Date 2015-07-30 - 2015-07-31 
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 
Paper Information
Registration To AP 
Conference Code 2015-07-AP 
Language Japanese 
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  
Keyword(7)  
Keyword(8)  
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.)
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Speaker Author-1 
Date Time 2015-07-30 11:00:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2015-41 
Volume (vol) vol.115 
Number (no) no.164 
Page pp.11-14 
#Pages 4 
Date of Issue 2015-07-23 (AP) 

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