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Paper Abstract and Keywords
Presentation 2022-02-24 16:15
Performance Evaluation of Frequency Offset Compensation Method for Doppler Shift Multiple Observations in User Position Detection System using Unmanned Aerial Vehicles
Akira Yamanaka, Hiroyasu Ishikawa (Nihon Univ.) SAT2021-59
Abstract (in Japanese) (See Japanese page) 
(in English) A typical Unmanned aircraft system (UAS) employs the unmanned aerial vehicles (UAV) with the velocity 40 to 100km/h and the attitude of 150 to1000 meters. Thereby, Doppler shift occurs at carrier frequency of the transmitted and received signals between the UAV with relay function and terrestrial terminal. By observing this Doppler shift for multiple UAVs at the same time or for one UAV at multiple times and using the UAV’s position information, it is possible to detect the user position on the ground. Further, we reported that frequency offset caused by an oscillator embedded in the user terminal can be estimated and compensated concurrently with the position detection of the user terminal by using multiple observed Doppler-shifts. In this study, a frequency offset compensation method concurrently operated with the position detection of the user terminal using multiple observation values of Doppler shift at independent time is newly proposed. In the simulation evaluations, we confirmed that the proposed method can provide the higher accuracy of the estimations of the frequency offset and the user position simultaneously by the least squares method. Further, we investigated an optimal observation period of the multiple Doppler shifts that providing both of sufficient positioning accuracy and frequency offset estimation accuracy at the same time.
Keyword (in Japanese) (See Japanese page) 
(in English) unmanned aerial vehicle / Doppler shift / least-square method / position detection method / frequency offset compensation method / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 379, SAT2021-59, pp. 39-44, Feb. 2022.
Paper # SAT2021-59 
Date of Issue 2022-02-17 (SAT) 
ISSN 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 SAT2021-59

Conference Information
Committee SAT SANE  
Conference Date 2022-02-24 - 2022-02-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Satellite technology, etc. 
Paper Information
Registration To SAT 
Conference Code 2022-02-SAT-SANE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performance Evaluation of Frequency Offset Compensation Method for Doppler Shift Multiple Observations in User Position Detection System using Unmanned Aerial Vehicles 
Sub Title (in English)  
Keyword(1) unmanned aerial vehicle  
Keyword(2) Doppler shift  
Keyword(3) least-square method  
Keyword(4) position detection method  
Keyword(5) frequency offset compensation method  
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1st Author's Name Akira Yamanaka  
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 2022-02-24 16:15:00 
Presentation Time 25 minutes 
Registration for SAT 
Paper # SAT2021-59 
Volume (vol) vol.121 
Number (no) no.379 
Page pp.39-44 
#Pages 6 
Date of Issue 2022-02-17 (SAT) 

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