로봇학회논문지 (The Journal of Korea Robotics Society)

  • 제9권4호
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  • Pages.206-215
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  • 2014
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  • 1975-6291(pISSN)
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  • 2287-3961(eISSN)
한국로봇학회 (Korea Robotics Society)
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확률적 방향각 추정에 기반한 수중 음원의 위치 인식 기법

Underwater Acoustic Source Localization based on the Probabilistic Estimation of Direction Angle

  • Choi, Jinwoo (Ocean System Engineering Research Division, Korea Research Institute of Ships & Ocean Engineering) ;
  • Choi, Hyun-Taek (Ocean System Engineering Research Division, Korea Research Institute of Ships & Ocean Engineering)
  • 투고 : 2014.08.15
  • 심사 : 2014.10.02
  • 발행 : 2014.11.28
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초록

Acoustic signal is crucial for the autonomous navigation of underwater vehicles. For this purpose, this paper presents a method of acoustic source localization. The proposed method is based on the probabilistic estimation of time delay of acoustic signals received by two hydrophones. Using Bayesian update process, the proposed method can provide reliable estimation of direction angle of the acoustic source. The acquired direction information is used to estimate the location of the acoustic source. By accumulating direction information from various vehicle locations, the acoustic source localization is achieved using extended Kalman filter. The proposed method can provide a reliable estimation of the direction and location of the acoustic source, even under for a noisy acoustic signal. Experimental results demonstrate the performance of the proposed acoustic source localization method in a real sea environment.

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참고문헌

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피인용 문헌

  1. Acoustic based Two Dimensional Underwater Localization Considering Directional Ambiguity vol.12, pp.4, 2017, https://doi.org/10.7746/jkros.2017.12.4.402
  2. 수중 영상 소나의 번들 조정과 3차원 복원을 위한 운동 추정의 모호성에 관한 연구 vol.11, pp.2, 2016, https://doi.org/10.7746/jkros.2016.11.2.051
  3. 두 개의 하이드로폰을 이용한 수중 음원 방향각 기반의 2차원 위치 인식 기법 vol.11, pp.3, 2014, https://doi.org/10.7746/jkros.2016.11.3.146