Paper Abstract and Keywords |
Presentation |
2008-01-29 17:00
Measurements of pulse and echo for flying CF-FM bats by telemetry sound recording
-- Characteristics of pulse-echo overlap during flight -- Yu Shiori, Tatsuro Hosokawa, Shizuko Hiryu, Hiroshi Riquimaroux, Yoshiaki Watanabe (Doshisha Univ.) US2007-108 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Onboard telemetry sound recording allowed us to examine pulse-echo interference which the horseshoe bats actually experienced during flight. In the results, the frequency of beat arising in the echolocation signal was changed according to the frequency difference between the pulse and the echo. The bats were found to adjust their pulse duration to keep the overlap duration between pulse and echo from the target wall at constant. Based on the results, comparing with the interaural time difference of the echo, the time difference between the peaks in the envelope of the beat signal at two ears was enlarged. These results suggest that the overlap signals may carry important information for echolocation. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Beat frequency / Overlap duration / Telemike / Rhinolophus ferrumequinum nippon / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 107, no. 468, US2007-108, pp. 65-70, Jan. 2008. |
Paper # |
US2007-108 |
Date of Issue |
2008-01-22 (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) |
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US2007-108 |
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) |
Measurements of pulse and echo for flying CF-FM bats by telemetry sound recording |
Sub Title (in English) |
Characteristics of pulse-echo overlap during flight |
Keyword(1) |
Beat frequency |
Keyword(2) |
Overlap duration |
Keyword(3) |
Telemike |
Keyword(4) |
Rhinolophus ferrumequinum nippon |
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1st Author's Name |
Yu Shiori |
1st Author's Affiliation |
Doshisha University (Doshisha Univ.) |
2nd Author's Name |
Tatsuro Hosokawa |
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 |
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Doshisha University (Doshisha Univ.) |
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Speaker |
Author-1 |
Date Time |
2008-01-29 17:00:00 |
Presentation Time |
30 minutes |
Registration for |
US |
Paper # |
US2007-108 |
Volume (vol) |
vol.107 |
Number (no) |
no.468 |
Page |
pp.65-70 |
#Pages |
6 |
Date of Issue |
2008-01-22 (US) |