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Paper Abstract and Keywords
Presentation 2008-02-26 10:30
Estimation of target detectability for aerial sonar in indoor environments
Hiroshi Matsuo, Tadashi Yamaguchi (Chiba Univ.), Hiroyuki Hachiya (Tokyo Tech) US2007-111
Abstract (in Japanese) (See Japanese page) 
(in English) An acoustic sensing that can be used in air has the potential to allow for a fast and accurate characterization of objects. Nevertheless, it is difficult to identify acoustic signals from small objects clearly because of environmental noises, sound attenuation and scattering on the object surface. In this paper, we present the performance of object detection using the M-sequence signal in an indoor environment. By using M-sequence signal, it was able to improve SN ratio and to measure the reflected waves from small objects that can not be detected by using a conventional impulse. When the noise component is getting low with higher order M-sequence, the reverberation component is relatively increased which limits the detection performance. In the reverberation limited case, after eliminating the reverberation component we estimated the target strength of metal cylinders as a function of radium of the cylinder.
Keyword (in Japanese) (See Japanese page) 
(in English) Acoustic sensing / M-sequence signal / Detection performance / Reverberation / Target Strength / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 494, US2007-111, pp. 13-18, Feb. 2008.
Paper # US2007-111 
Date of Issue 2008-02-19 (US) 
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 US2007-111

Conference Information
Committee US  
Conference Date 2008-02-26 - 2008-02-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Elm Hall, Ichigaya Bldg., Sharp Corp. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Acoustic Imaging 
Paper Information
Registration To US 
Conference Code 2008-02-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Estimation of target detectability for aerial sonar in indoor environments 
Sub Title (in English)  
Keyword(1) Acoustic sensing  
Keyword(2) M-sequence signal  
Keyword(3) Detection performance  
Keyword(4) Reverberation  
Keyword(5) Target Strength  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Hiroshi Matsuo  
1st Author's Affiliation Chiba University (Chiba Univ.)
2nd Author's Name Tadashi Yamaguchi  
2nd Author's Affiliation Chiba University (Chiba Univ.)
3rd Author's Name Hiroyuki Hachiya  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
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Speaker Author-1 
Date Time 2008-02-26 10:30:00 
Presentation Time 30 minutes 
Registration for US 
Paper # US2007-111 
Volume (vol) vol.107 
Number (no) no.494 
Page pp.13-18 
#Pages 6 
Date of Issue 2008-02-19 (US) 

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