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Paper Abstract and Keywords
Presentation 0000-00-00 00:00
Position Estimation Accuracy of Mobile User based on Multiple Observation of Doppler-shifts in Positioning System using Unmanned Aerial Vehicle
Hideaki Ito, Hiroyasu Ishikawa (Nihon Uniuv.) IT2023-85 ISEC2023-84 WBS2023-73 RCC2023-67
Abstract (in Japanese) (See Japanese page) 
(in English) In the typical unmanned aircraft system (UAS) which provides temporal communication services under emergency and rescue situations, several numbers of unmanned aerial vehicle (UAV) with the velocity of 40 to 100 km/h and the altitude of 150 to 1,000 meters shall be applied to the provision of wide service coverage. Therefore, Doppler shifts are occurred in the carrier frequency of the transmitted and received signals by a change in line-of-sight velocity between the UAV and the terrestrial terminal．By observing multiple Doppler shift values for different UAVs, it is possible to detect the position of the user．We have been conducted performance evaluations of positioning accuracy for user position detection method using two UAVs with figure-8 flight model when the user is located at a fixed position. However, the position detection accuracy would degraded when the user position is changing with the time proceeds. In order to clear this problem, we proposed simple user position estimation method considering the movement of the user based on the least-square method.
In this study, multiple observations method of Doppler shift is applied so as to improve the positioning accuracy of the proposed position detection method which consider the user movement using two UAVs with figure-8 flight model. From the simulation results based on least mean square method which adopts multiple observations of Doppler shift up to six, we confirmed that the enhanced method shows better performance compared to the double observation methods.
Keyword (in Japanese) (See Japanese page) 
(in English) unmanned aerial vehicle / multiple observations of Doppler shift / position detection accuracy / least-square method / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 425, WBS2023-73, pp. 66-71, March 2024.
Paper # WBS2023-73 
Date of Issue 2024-03-06 (IT, ISEC, WBS, RCC) 
ISSN Online edition: ISSN 2432-6380
Copyright
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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 IT2023-85 ISEC2023-84 WBS2023-73 RCC2023-67

Conference Information
Committee RCC ISEC IT WBS  
Conference Date 2024-03-13 - 2024-03-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka Univ. (Suita Campus) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) RCC, ISEC, IT, WBS 
Paper Information
Registration To WBS 
Conference Code 2024-03-RCC-ISEC-IT-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Position Estimation Accuracy of Mobile User based on Multiple Observation of Doppler-shifts in Positioning System using Unmanned Aerial Vehicle 
Sub Title (in English)  
Keyword(1) unmanned aerial vehicle  
Keyword(2) multiple observations of Doppler shift  
Keyword(3) position detection accuracy  
Keyword(4) least-square method  
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1st Author's Name Hideaki Ito  
1st Author's Affiliation Nihon University (Nihon Uniuv.)
2nd Author's Name Hiroyasu Ishikawa  
2nd Author's Affiliation Nihon University (Nihon Uniuv.)
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Speaker Author-2 
Date Time 0000-00-00 00:00:00 
Presentation Time minutes 
Registration for WBS 
Paper # IT2023-85, ISEC2023-84, WBS2023-73, RCC2023-67 
Volume (vol) vol.123 
Number (no) no.423(IT), no.424(ISEC), no.425(WBS), no.426(RCC) 
Page pp.66-71 
#Pages 6 
Date of Issue 2024-03-06 (IT, ISEC, WBS, RCC) 

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