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| Presentation | 2011-01-21 09:45 An experimental and theoretical investigation of pulse production for effective target search -- Analysis of ultrasonic sonar emission of echolocating bats during foraging -- Emyo Fujioka (Doshisha Univ.), Ikkyu Aihara (Kyoto Univ.), Shizuko Hiryu, Hiroshi Riquimaroux, Yoshiaki Watanabe (Doshisha Univ.)  US2010-103 EA2010-116 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Ultrasonic sonar emissions and 3-D flight paths of free-ranging wild Pipistrellus abramus were measured by using a custom made microphone-array system during foraging insect preys. Interpulse interval (IPI) was relatively constant at around 100 ms in search phase (normal IPI). Interestingly, the bats occasionally prolonged IPI approximately twice as long as the normal search IPI (long IPI), which occurred with increased frequency in case of low insect density. These findings suggest that the foraging bats expand the search range by prolonging IPI for the effective search when the insect density is low. We then build a mathematical model of this behavior in terms of pulse production during target search. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Bio-sonar / Echolocation / Pipistrellus abramus / FM bat / Microphone array / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 366, US2010-103, pp. 65-70, Jan. 2011. | |
| Paper # | US2010-103 | |
| Date of Issue | 2011-01-13 (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 | US2010-103 EA2010-116 |
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| Conference Information | |
| Committee | EA US |
| Conference Date | 2011-01-20 - 2011-01-21 |
| 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 | 2011-01-EA-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An experimental and theoretical investigation of pulse production for effective target search |
| Sub Title (in English) | Analysis of ultrasonic sonar emission of echolocating bats during foraging |
| Keyword(1) | Bio-sonar |
| Keyword(2) | Echolocation |
| Keyword(3) | Pipistrellus abramus |
| Keyword(4) | FM bat |
| Keyword(5) | Microphone array |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Emyo Fujioka |
| 1st Author's Affiliation | Doshisha University (Doshisha Univ.) |
| 2nd Author's Name | Ikkyu Aihara |
| 2nd Author's Affiliation | Kyoto University (Kyoto 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 | 2011-01-21 09:45:00 |
| Presentation Time | 30 minutes |
| Registration for | US |
| Paper # | US2010-103, EA2010-116 |
| Volume (vol) | vol.110 |
| Number (no) | no.366(US), no.367(EA) |
| Page | pp.65-70 |
| #Pages | 6 |
| Date of Issue | 2011-01-13 (US, EA) |
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