Passive Source Localization Using Acoustic Intensity in Multipath-Dominant Shallow-Water Waveguide SCIE SCOPUS

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Title
Passive Source Localization Using Acoustic Intensity in Multipath-Dominant Shallow-Water Waveguide
Author(s)
Kim, Sunhyo; Cho, Sungho; Jung, Seom Kyu; Choi, Jee Woong
KIOST Author(s)
KIM, Sunhyo(김선효)Cho, Sungho(조성호)
Alternative Author(s)
김선효; 조성호; 정섬규
Publication Year
2021-03
Abstract
The array invariant technique has been recently proposed for passive source localization in the ocean. It has successfully estimated the source-receiver horizontal range in multipath-dominant shallow-water waveguides. However, it requires a relatively large-scale hydrophone array. This study proposes an array invariant method that uses acoustic intensity, which is a vector quantity that has the same direction as the sound wave propagating through a water medium. This method can be used to estimate not only the source-receiver horizontal range, but also the azimuth to an acoustic source. The feasibility of using a vector quantity for the array invariant method is examined through a simulation and an acoustic experiment in which particle velocity signals are obtained using a finite difference approximation of the pressure signals at two adjacent points. The source localization results estimated using acoustic intensity are compared with those obtained from beamforming of the acoustic signals acquired by the vertical line array.
ISSN
1424-8220
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/41341
DOI
10.3390/s21062198
Bibliographic Citation
SENSORS, v.21, no.6, 2021
Publisher
MDPI
Subject
PARTICLE MOTION; INVARIANT; ARRAY; RANGE; FIELD
Keywords
particle velocity; array invariant; passive source localization
Type
Article
Language
English
Document Type
Article
Publisher
MDPI
Related Researcher
Research Interests

Underwater acoustics signal processing,SONAR detection performance analysis,Underwater acoustic sensor networks,수중 음향 신호 처리,소나 탐지 성능 분석,수중 음향 센서 네트워크

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