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Paper Abstract and Keywords
Presentation 2021-10-07 09:00
[Tutorial Lecture] A Study on the Measurement and Estimation Methods of Rain Attenuation Characteristics in Satellite Communications Links
Yasuyuki Maekawa (Osaka Electro-Commun. Univ.) AP2021-68
Abstract (in Japanese) (See Japanese page) 
(in English) Rain attenuation characteristics of Ka and Ku band satellite communication links are presented using the domestic CS (19.45 GHz) and BS (11.84 GHz) signal levels observed at Osaka Electro-Communication University from 1986 to 2006 at Neyagawa, Osaka. Specifically, statistical calculation methods are introduced for yearly cumulative time percentages, worst month time percentages, and frequency scaling. Also, the prediction methods of ITU-R recommendations are explained for these statistics. The long-term cumulative time percentages of both frequency bands are in good agreement with ITU-R predictions. However, the yearly time percentages show fairly large variations, which seem to be caused by dominant rainfall types such as convective precipitation in addition to yearly rainfall.
Keyword (in Japanese) (See Japanese page) 
(in English) Satellite communications / Rain attenuation statistics / Rainfall rate / Worst month statistics / Frequency scaling / ITU-R recommendation / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 191, AP2021-68, pp. 1-6, Oct. 2021.
Paper # AP2021-68 
Date of Issue 2021-09-30 (AP) 
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 AP2021-68

Conference Information
Committee AP  
Conference Date 2021-10-07 - 2021-10-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Student Session, Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2021-10-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on the Measurement and Estimation Methods of Rain Attenuation Characteristics in Satellite Communications Links 
Sub Title (in English)  
Keyword(1) Satellite communications  
Keyword(2) Rain attenuation statistics  
Keyword(3) Rainfall rate  
Keyword(4) Worst month statistics  
Keyword(5) Frequency scaling  
Keyword(6) ITU-R recommendation  
1st Author's Name Yasuyuki Maekawa  
1st Author's Affiliation Osaka Electro-Communication University (Osaka Electro-Commun. Univ.)
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Date Time 2021-10-07 09:00:00 
Presentation Time 50 
Registration for AP 
Paper # IEICE-AP2021-68 
Volume (vol) IEICE-121 
Number (no) no.191 
Page pp.1-6 
#Pages IEICE-6 
Date of Issue IEICE-AP-2021-09-30 

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