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Paper Abstract and Keywords
Presentation 2017-01-26 11:20
Airborne ultrasonic position and velocity measurement by using two types of LPM signals and multiple moving objects tracking
Haruki Chiba, Ko Sakai, Shinnosuke Hirata (Tokyo Tech), Yuichiro Orino (The University of Shiga Prefecture), Minoru K Kurosawa (Tokyo Tech) US2016-112 EA2016-80
Abstract (in Japanese) (See Japanese page) 
(in English) Ultrasonic distance measurement with pulse-echo is based on determination of the time of flight of ultrasonic pulses. In addition, a measuring method of moving object by transmitting a pair of LPM (Linear-period-modulated) signal has been proposed. Two-dimensional and three-dimensional position and velocity can be measured by using multiple microphones.
However, when multiple objects are measured at the same time, sometimes ambiguity occurs in the localization due to appearance of the artifacts. Interference of the echoes causes ambiguity of the one-dimensional distance and velocity measurement by each microphone, and certain of positional relationships of the objects generates the artifacts in the two-dimensional position and velocity measurement.
As the countermeasure for ambiguity of measurement, a measurement method using two types of LPM signals (ex. up chirp and down chirp) and tracking method of multiple moving objects have been proposed.
In this paper, the effects of these two methods on localization are evaluated by simulation and experiment of ultrasonic position and velocity measurement.
Keyword (in Japanese) (See Japanese page) 
(in English) ultrasonic position and velocity measurement / Linear-Period-Modulated signal / artifact / object tracking / / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 419, US2016-112, pp. 197-202, Jan. 2017.
Paper # US2016-112 
Date of Issue 2017-01-18 (US, EA) 
ISSN Print edition: ISSN 0913-5685    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 US2016-112 EA2016-80

Conference Information
Committee EA US  
Conference Date 2017-01-25 - 2017-01-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Doshisha Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics, and Related Topics 
Paper Information
Registration To US 
Conference Code 2017-01-EA-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Airborne ultrasonic position and velocity measurement by using two types of LPM signals and multiple moving objects tracking 
Sub Title (in English)  
Keyword(1) ultrasonic position and velocity measurement  
Keyword(2) Linear-Period-Modulated signal  
Keyword(3) artifact  
Keyword(4) object tracking  
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1st Author's Name Haruki Chiba  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
2nd Author's Name Ko Sakai  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
3rd Author's Name Shinnosuke Hirata  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
4th Author's Name Yuichiro Orino  
4th Author's Affiliation The University of Shiga Prefecture (The University of Shiga Prefecture)
5th Author's Name Minoru K Kurosawa  
5th Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
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Speaker Author-1 
Date Time 2017-01-26 11:20:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2016-112, EA2016-80 
Volume (vol) vol.116 
Number (no) no.419(US), no.420(EA) 
Page pp.197-202(US), pp.73-78(EA) 
#Pages 6 
Date of Issue 2017-01-18 (US, EA) 

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