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Paper Abstract and Keywords
Presentation 2020-12-11 09:00
Study of Doppler-shift estimation method for user position detection system using unmanned aerial vehicles in a multipath environment
Naoya Kezuka, Hiroyasu Ishikawa (Nihon Univ.) SAT2020-23
Abstract (in Japanese) (See Japanese page) 
(in English) A typical Unmanned aircraft system (UAS) is composed of several unmanned aerial vehicles (UAVs) and a ground station. It is possible to detect a user position by observing Doppler shift which is contained in reception signals at UAV. We previously conducted computer simulations based on ray-tracing method under multipath environments and evaluated Doppler shift distributions. In this research, Doppler shift estimation methods and their performance evaluations are presented for user position detection system based on Doppler shift distributions under 2 types of multipath environmental models such as “city model” and “mountain area model”. From the results of computer simulation, weighted average method of observed Doppler shift shows the best estimation performance but simple averaging method shows better position detection performance compared to other methods. Further investigations should be needed to achieve better positioning performance in sever multipath condition.
Keyword (in Japanese) (See Japanese page) 
(in English) unmanned aerial vehicle / multipath / Doppler shift estimation method / user position detection method / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 287, SAT2020-23, pp. 1-6, Dec. 2020.
Paper # SAT2020-23 
Date of Issue 2020-12-04 (SAT) 
ISSN 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 SAT2020-23

Conference Information
Committee SAT  
Conference Date 2020-12-11 - 2020-12-11 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Satellite Communication, etc. 
Paper Information
Registration To SAT 
Conference Code 2020-12-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study of Doppler-shift estimation method for user position detection system using unmanned aerial vehicles in a multipath environment 
Sub Title (in English)  
Keyword(1) unmanned aerial vehicle  
Keyword(2) multipath  
Keyword(3) Doppler shift estimation method  
Keyword(4) user position detection method  
1st Author's Name Naoya Kezuka  
1st Author's Affiliation Nihon University (Nihon Univ.)
2nd Author's Name Hiroyasu Ishikawa  
2nd Author's Affiliation Nihon University (Nihon Univ.)
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Speaker Author-1 
Date Time 2020-12-11 09:00:00 
Presentation Time 25 minutes 
Registration for SAT 
Paper # SAT2020-23 
Volume (vol) vol.120 
Number (no) no.287 
Page pp.1-6 
Date of Issue 2020-12-04 (SAT) 

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