| Presentation | 2011/1/13 An experimental and theoretical investigation of pulse production for effective target search : Analysis of ultrasonic sonar emission of echolocating bats during foraging Emyo FUJIOKA, Ikkyu AIHARA, Shizuko HIRYU, Hiroshi RIQUIMAROUX, Yoshiaki WATANABE, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Ultrasonic sonar emissions and 3-D flight paths of free-ranging wild Pzistrellus 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 WI), 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) |
| Keyword(in English) | Bio-sonar / Echolocation / Pipistrellus abramus / FM bat / Microphone array |
| Paper # | US2010-103 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 2011/1/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| 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 : Analysis of ultrasonic sonar emission of echolocating bats during foraging |
| Sub Title (in English) | |
| Keyword(1) | Bio-sonar |
| Keyword(2) | Echolocation |
| Keyword(3) | Pipistrellus abramus |
| Keyword(4) | FM bat |
| Keyword(5) | Microphone array |
| 1st Author's Name | Emyo FUJIOKA |
| 1st Author's Affiliation | Graduate School of Life and Medical Sciences, Doshisha University() |
| 2nd Author's Name | Ikkyu AIHARA |
| 2nd Author's Affiliation | Department of Physics, Graduate School of Sciences, Kyoto University |
| 3rd Author's Name | Shizuko HIRYU |
| 3rd Author's Affiliation | Faculty of Life and Medical Sciences, Doshisha University:Bio-navigation Research Center, Doshisha University |
| 4th Author's Name | Hiroshi RIQUIMAROUX |
| 4th Author's Affiliation | Graduate School of Life and Medical Sciences, Doshisha University:Faculty of Life and Medical Sciences, Doshisha University:Bio-navigation Research Center, Doshisha University |
| 5th Author's Name | Yoshiaki WATANABE |
| 5th Author's Affiliation | Graduate School of Life and Medical Sciences, Doshisha University:Faculty of Life and Medical Sciences, Doshisha University:Bio-navigation Research Center, Doshisha University |
| Date | 2011/1/13 |
| Paper # | US2010-103 |
| Volume (vol) | vol.110 |
| Number (no) | 366 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |