Study on improving passive sonar detection using acoustic vibration matching method for front and rear signal of complex sensor

Dongwan Seo; Woosuk Chang; Donghyeon Kim; Eunghwy Noh; Jeongeun Yang

doi:10.7776/ASK.2024.43.2.145

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2024 Vol.43, Issue 2 Next Page

Research Article

Study on improving passive sonar detection using acoustic vibration matching method for front and rear signal of complex sensor 복합센서의 전후방 신호에 대한 음향진동 정합기법을 이용한 수동소나 탐지성능 향상에 대한 연구

31 March 2024. pp. 145-151

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Abstract

Recently, ship hull-mounted passive sonar system solution is needed in the perspective of improving target detection and elimination of vibration-induced noise. Our research team suggests acoustic-vibration matching method using front and rear signal of a sensor as the improvement of the problem above. Thus in this paper, theoretical background about matching method and its application on finite element method based multi-physics simulation are described. Furthermore, it is shown that target detection and hull vibration performance are improved by using matching method under the condition of our sensor system. Finally, practicality and future research are discussed.

Keywords

Passive sonar

Target detection

Vibration-induced noise

Acoustic-vibration matching method

함정 선체부착형 수동소나체계는 최근 표적탐지성능을 향상시키고자 함내 진동유기 소음을 제거하려는 연구가 활발히 진행중이다. 본 연구진은 신호처리의 관점에서 음향센서와 진동센서가 설치된 복합센서를 이용한 음향-진동 정합기법을 개선책으로 제시한다. 본 논문에서는 정합기법의 이론적 배경에 대해 기술한 후, 그것이 다중물리 유한요소해석 상에서 실현됨을 보였다. 나아가 정합기법을 센서 시스템에 적용할 시의 표적신호 수신감도 상승 및 진동유기 소음 제거 성능을 산출하였으며, 정합기법의 실용성과 향후 연구방향에 대해 논하였다.

키워드

수동소나

표적탐지

진동유기 소음

음향-진동 정합기법

References

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Information

Publisher :The Acoustical Society of Korea
Publisher(Ko) :한국음향학회
Journal Title :The Journal of the Acoustical Society of Korea
Journal Title(Ko) :한국음향학회지
Volume : 43
No :2
Pages :145-151
Received Date : 2023-11-07
Revised Date : 2023-12-26
Accepted Date : 2024-01-03
DOI :https://doi.org/10.7776/ASK.2024.43.2.145

The Journal of the Acoustical Society of KoreaISSN:1225-4428(Print) 2287-3775(Online)한국음향학회

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