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Paper Abstract and Keywords
Presentation 2008-01-29 16:30
Contribution of bat's pinna movement for extracting advanced target information in echolocation
Tatsuro Hosokawa, Yu Shiori, Shizuko Hiryu, Hiroshi Riquimaroux, Yoshiaki Watanabe (Doshisha Univ.) US2007-107
Abstract (in Japanese) (See Japanese page) 
(in English) Some CF-FM bat species are known to move their pinnae rapidly and alternately back and forth while they are paying attention to a target.This pinna movement is predicted to create Doppler-shifts in echoes that bats are receiving, which play an important role in echolocation.However, the actual moving speed of pinna and the Doppler-shift of echo caused by alternating pinna are not investigated, and the effects in receiving echoes are not entirely revealed yet.
In this report, pinna movement of Rhinolophus ferrumequinum nippon was measured by using high speed video camera.In addition, the amount of Doppler-shift in echoes caused by pinna movement was obtained from the moving speed of pinna and the timing of echo reception.From these results, we discussed the possibility of contribution to the echolocation of pinna movement.
Keyword (in Japanese) (See Japanese page) 
(in English) CF-FM bat / pinna movement / Doppler-shift / echolocation / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 468, US2007-107, pp. 59-64, Jan. 2008.
Paper # US2007-107 
Date of Issue 2008-01-22 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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)
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Conference Information
Committee EA US  
Conference Date 2008-01-28 - 2008-01-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Kansai University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To US 
Conference Code 2008-01-EA-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Contribution of bat's pinna movement for extracting advanced target information in echolocation 
Sub Title (in English)  
Keyword(1) CF-FM bat  
Keyword(2) pinna movement  
Keyword(3) Doppler-shift  
Keyword(4) echolocation  
1st Author's Name Tatsuro Hosokawa  
1st Author's Affiliation Doshisha University (Doshisha Univ.)
2nd Author's Name Yu Shiori  
2nd Author's Affiliation Doshisha University (Doshisha Univ.)
3rd Author's Name Shizuko Hiryu  
3rd Author's Affiliation Doshisha University (Doshisha Univ.)
4th Author's Name Hiroshi Riquimaroux  
4th Author's Affiliation Doshisha University (Doshisha Univ.)
5th Author's Name Yoshiaki Watanabe  
5th Author's Affiliation Doshisha University (Doshisha Univ.)
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Speaker Author-1 
Date Time 2008-01-29 16:30:00 
Presentation Time 30 minutes 
Registration for US 
Paper # US2007-107 
Volume (vol) vol.107 
Number (no) no.468 
Page pp.59-64 
Date of Issue 2008-01-22 (US) 

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