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Paper Abstract and Keywords
Presentation 2026-06-04 14:40
Tank Test Evaluation of Underwater Acoustic Communication System with Doppler Shift Tolerance
Shingo Yoshizawa (Chitose Inst. of Sci. and Tech.), Kazuhiro Shirokane (JMU Defense Systems), Takashi Saito (Tamagawa Electronics) SIS2026-3
Abstract (in Japanese) (See Japanese page) 
(in English) Although direct sequence spread spectrum (DSSS) is effective for long-distance underwater acoustic communications, it is susceptible to the effects of the Doppler shift. When the received signal is affected by both Doppler shift and multipath, it is difficult to fully correct the distortion. This study proposes a communication method, DSSS-PMF, that can handle both effects by performing correlation calculations in the passband region and demodulation timing correction. Through water tank tests, we evaluated the communication characteristics under conditions of high-speed movement and accelerating motion of the terminal and confirmed the effectiveness of the proposed method.
Keyword (in Japanese) (See Japanese page) 
(in English) Underwater acoustic communication / Direct sequence spread spectrum / Doppler shift / Multipath / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 54, SIS2026-3, pp. 12-15, June 2026.
Paper # SIS2026-3 
Date of Issue 2026-05-28 (SIS) 
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 SIS2026-3

Conference Information
Committee SIS  
Conference Date 2026-06-04 - 2026-06-05 
Place (in Japanese) (See Japanese page) 
Place (in English) Iwaki Business Innovation Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Intelligent Multimedia Systems, Applied Embedded Systems, Three-Dimensional Image Technology (3DIT), etc. 
Paper Information
Registration To SIS 
Conference Code 2026-06-SIS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Tank Test Evaluation of Underwater Acoustic Communication System with Doppler Shift Tolerance 
Sub Title (in English)  
Keyword(1) Underwater acoustic communication  
Keyword(2) Direct sequence spread spectrum  
Keyword(3) Doppler shift  
Keyword(4) Multipath  
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1st Author's Name Shingo Yoshizawa  
1st Author's Affiliation Chitose Institute of Science and Technology (Chitose Inst. of Sci. and Tech.)
2nd Author's Name Kazuhiro Shirokane  
2nd Author's Affiliation JMU Defense Systems Co.,Ltd (JMU Defense Systems)
3rd Author's Name Takashi Saito  
3rd Author's Affiliation Tamagawa Electronics Corporation (Tamagawa Electronics)
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Speaker Author-1 
Date Time 2026-06-04 14:40:00 
Presentation Time 20 minutes 
Registration for SIS 
Paper # SIS2026-3 
Volume (vol) vol.126 
Number (no) no.54 
Page pp.12-15 
#Pages 4 
Date of Issue 2026-05-28 (SIS) 

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