근접 센서쌍을 이용한 수중음원 위치 추정 실험 및 분석

Title
근접 센서쌍을 이용한 수중음원 위치 추정 실험 및 분석
Alternative Title
Experimental analysis of underwater acoustic source localization using closely spaced hydrophone pairs
Author(s)
심민섭; 김병남; 김응; 최복경; 이균경
KIOST Author(s)
Kim, Byoung Nam(김병남)Kim, Eung(김응)Choi, Bok Kyoung(최복경)
Publication Year
2016-11-16
Abstract
Underwater sound source position is determined using a line array like the TASS, frank array using the beamforming and band analysis. However, performance degradation occurs owing to a multipath environment, which generates incoherent signals. In this paper, a hydrophone array is proposed for underwater source position estimation robust to a multipath environment. For verification of the proposed array, we perform experimental analysis with the conventional array. The proposed system is not affected by a multipath time delay because of the close distance between closely spaced sensors. The array is composed of three pairs of sensors that are a coupled of closely-spaced hydrophone placed on the same line. The source position is estimated by performing generalized cross-correlation (GCC) and wavefront curvature analysis. The validity of the array is confirmed by experiment.ls. In this paper, a hydrophone array is proposed for underwater source position estimation robust to a multipath environment. For verification of the proposed array, we perform experimental analysis with the conventional array. The proposed system is not affected by a multipath time delay because of the close distance between closely spaced sensors. The array is composed of three pairs of sensors that are a coupled of closely-spaced hydrophone placed on the same line. The source position is estimated by performing generalized cross-correlation (GCC) and wavefront curvature analysis. The validity of the array is confirmed by experiment.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/24326
Bibliographic Citation
The 37th Symposium on Ultrasonic Eletronics(USE) 2016, pp.1 - 2, 2016
Publisher
The Japan Society of Applied Physics
Type
Conference
Language
English
Publisher
The Japan Society of Applied Physics
Related Researcher
Research Interests

Underwater Acoustics,Bubble Acoustics,Marine Defense & Safety,수중음향,기포음향,해양방위·안전

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