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Paper Abstract and Keywords
Presentation 2026-02-18 16:25
Measurement of underwater echo AOA by autocorrelation of ultrasonic double pulses using AFM sensitivity compensated signal
Hidetoshi Someya, Ryo Toh (Chiba Tech) US2025-64
Abstract (in Japanese) (See Japanese page) 
(in English) In order to improve the accuracy of underwater ranging and reduce the effects of multipath fading, we have proposed a time-reversal sensitivity correction signal (AFM-SC). On the other hand, we demonstrated the efficiency of angle of arrival (AOA) measurement of airborne objects by cross-correlation processing for multiple receiving signals with a reference signal using the sensitivity compensation signal. In this paper, we study the possible effect of the directivity of ultrasonic transducers on the underwater AOA measurement method using AFM-SC signals and autocorrelation processing for ultrasonic double pulses transmitted by multiple transmitters.
Keyword (in Japanese) (See Japanese page) 
(in English) Angle of arrival / underwater ranging / sensitivity compensation / autocorrelation / directivity / time difference of arrival / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 354, US2025-64, pp. 33-37, Feb. 2026.
Paper # US2025-64 
Date of Issue 2026-02-11 (US) 
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 US2025-64

Conference Information
Committee US  
Conference Date 2026-02-18 - 2026-02-18 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) Acoustic imaging, NDT, Ultrasound in medicine, Ultrasonics, etc. 
Paper Information
Registration To US 
Conference Code 2026-02-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Measurement of underwater echo AOA by autocorrelation of ultrasonic double pulses using AFM sensitivity compensated signal 
Sub Title (in English)  
Keyword(1) Angle of arrival  
Keyword(2) underwater ranging  
Keyword(3) sensitivity compensation  
Keyword(4) autocorrelation  
Keyword(5) directivity  
Keyword(6) time difference of arrival  
Keyword(7)  
Keyword(8)  
1st Author's Name Hidetoshi Someya  
1st Author's Affiliation Chiba Institute of Technology (Chiba Tech)
2nd Author's Name Ryo Toh  
2nd Author's Affiliation Chiba Institute of Technology (Chiba Tech)
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Speaker Author-1 
Date Time 2026-02-18 16:25:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2025-64 
Volume (vol) vol.125 
Number (no) no.354 
Page pp.33-37 
#Pages 5 
Date of Issue 2026-02-11 (US) 

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