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Paper Abstract and Keywords
Presentation 2026-03-17 17:20
A Study on Human Localization Using Millimeter-Wave Radar Based on Adjacent Peak Interval Distribution in Respiratory Cycles
Hiroto Fujii (NIT, Anan College), Shintaro Arai, Ryohei Yoshitake (Okayama Univ. of Sci.), Suguru Kameda (Hiroshima Univ.), Ataru Yamaoka (S-TAKAYA) CCS2025-73
Abstract (in Japanese) (See Japanese page) 
(in English) In noncontact vital signs sensing using millimeter-wave radar, accurately estimating a subject’s position is important to precisely detect vital signals. Conventional methods have performed localization based on the signal-to-noise ratio (SNR), where the respiratory frequency band is treated as the effective signal.
However, this approach is easily affected by noise components due to individual differences, such as variations in breathing depth.
In this study, we focus on the periodicity and stability of the respiratory component and propose a localization method based on an evaluation index derived from the distribution of instantaneous respiratory rate.
Keyword (in Japanese) (See Japanese page) 
(in English) mmWave / mmWave radar / vital signs sensing / Noncontact vital signs sensing / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 416, CCS2025-73, pp. 109-113, March 2026.
Paper # CCS2025-73 
Date of Issue 2026-03-10 (CCS) 
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 CCS2025-73

Conference Information
Committee CCS  
Conference Date 2026-03-17 - 2026-03-18 
Place (in Japanese) (See Japanese page) 
Place (in English) RUSUTSU RESORT 
Topics (in Japanese) (See Japanese page) 
Topics (in English) CCS, etc. 
Paper Information
Registration To CCS 
Conference Code 2026-03-CCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Human Localization Using Millimeter-Wave Radar Based on Adjacent Peak Interval Distribution in Respiratory Cycles 
Sub Title (in English)  
Keyword(1) mmWave  
Keyword(2) mmWave radar  
Keyword(3) vital signs sensing  
Keyword(4) Noncontact vital signs sensing  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Hiroto Fujii  
1st Author's Affiliation National Institute of Technology, Anan College (NIT, Anan College)
2nd Author's Name Shintaro Arai  
2nd Author's Affiliation Okayama University of Science (Okayama Univ. of Sci.)
3rd Author's Name Ryohei Yoshitake  
3rd Author's Affiliation Okayama University of Science (Okayama Univ. of Sci.)
4th Author's Name Suguru Kameda  
4th Author's Affiliation Hiroshima University (Hiroshima Univ.)
5th Author's Name Ataru Yamaoka  
5th Author's Affiliation S-TAKAYA ELECTRONICS INDUSTRY CO., LTD. (S-TAKAYA)
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Speaker Author-1 
Date Time 2026-03-17 17:20:00 
Presentation Time 20 minutes 
Registration for CCS 
Paper # CCS2025-73 
Volume (vol) vol.125 
Number (no) no.416 
Page pp.109-113 
#Pages 5 
Date of Issue 2026-03-10 (CCS) 

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