박쥐의 먹이 탐지 전략을 모방한 초음파 센서의 물체 위치 추정

다국어 초록 (Multilingual 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.

목차 (Table of Contents)

• Abstract
• Ⅰ. 서론
• Ⅱ. 실험 방법
• Ⅲ. 실험 결과
• Ⅳ. 토의
• Ⅴ. 결론
• 참고문헌

참고문헌 (Reference)

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2 한혜민, "초음파 데이터의 신뢰도 모델 기반 지도 작성" 제어·로봇·시스템학회 17 (17): 1219-1226, 2011

3 김성복, "고분해능 장애물 탐지를 위한 중첩 초음파 센서 링의 최적 설계" 제어·로봇·시스템학회 17 (17): 79-87, 2011

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6 R. Dawkins, "The Blind Watchmaker" Penguin Harmondsworth 1991

7 S. Haykin, "Signals and Systems"

8 S. Stamper, "Role of broadcast harmonics in echo delay perception by big brown bats" 195 : 79-89, 2009

9 C. Moss, "Probing the natural scene by echolocation in bats" 4 (4): 2010

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11 M. Bates, "Bats use echo harmonic structure to distinguish their targets from background clutter" 333 (333): 627-630, 2011

12 C. Moss, "Auditory scene analysis by echolocation in bats" 110 (110): 2207-2226, 2001

13 J. Simmons, "Acoustic imaging in bat sonar: echolocation signals and the evolution of echolocation" 135 (135): 61-84, 1980