Abstract
It is known that big brown bats can distinguish echo of a prey at various angles. In this paper, we suggest a new object localization strategy using ultrasonic echolocation. We calculate the relative energy ratio between a high frequency component of ultrasound signal and a low frequency component of ultrasound signal for a target object. We found the measure depends on bearing angle of the object in space. We also tested energy ratio of echoed FM ultrasound signals depending on frequency, based on cross-correlation. It can determine the relative angular position of objects even though the reflected signals are congested form each object.
| Original language | English |
|---|---|
| Pages (from-to) | 161-167 |
| Number of pages | 7 |
| Journal | Journal of Institute of Control, Robotics and Systems |
| Volume | 18 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2012 Mar 1 |
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All Science Journal Classification (ASJC) codes
- Software
- Control and Systems Engineering
- Applied Mathematics
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Ultrasound echolocation inspired by a prey detection strategy of big brown bats. / Park, Sangwook; Kim, DaeEun.
In: Journal of Institute of Control, Robotics and Systems, Vol. 18, No. 3, 01.03.2012, p. 161-167.Research output: Contribution to journal › Article
TY - JOUR
T1 - Ultrasound echolocation inspired by a prey detection strategy of big brown bats
AU - Park, Sangwook
AU - Kim, DaeEun
PY - 2012/3/1
Y1 - 2012/3/1
N2 - It is known that big brown bats can distinguish echo of a prey at various angles. In this paper, we suggest a new object localization strategy using ultrasonic echolocation. We calculate the relative energy ratio between a high frequency component of ultrasound signal and a low frequency component of ultrasound signal for a target object. We found the measure depends on bearing angle of the object in space. We also tested energy ratio of echoed FM ultrasound signals depending on frequency, based on cross-correlation. It can determine the relative angular position of objects even though the reflected signals are congested form each object.
AB - It is known that big brown bats can distinguish echo of a prey at various angles. In this paper, we suggest a new object localization strategy using ultrasonic echolocation. We calculate the relative energy ratio between a high frequency component of ultrasound signal and a low frequency component of ultrasound signal for a target object. We found the measure depends on bearing angle of the object in space. We also tested energy ratio of echoed FM ultrasound signals depending on frequency, based on cross-correlation. It can determine the relative angular position of objects even though the reflected signals are congested form each object.
UR - http://www.scopus.com/inward/record.url?scp=84860255607&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84860255607&partnerID=8YFLogxK
U2 - 10.5302/J.ICROS.2012.18.3.161
DO - 10.5302/J.ICROS.2012.18.3.161
M3 - Article
AN - SCOPUS:84860255607
VL - 18
SP - 161
EP - 167
JO - Journal of Institute of Control, Robotics and Systems
JF - Journal of Institute of Control, Robotics and Systems
SN - 1976-5622
IS - 3
ER -