Detection of tonal frequency of underwater radiated noise via atomic norm minimization

Junhan Kim; Jinhong Kim; Byonghyo Shim; Jungpyo Hong; Seongil Kim; Wooyoung Hong

doi:10.7776/ASK.2019.38.5.543

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2019 Vol.38, Issue 5 Preview Page Next Page

Research Article

Detection of tonal frequency of underwater radiated noise via atomic norm minimization Atomic norm minimization을 통한 수중 방사 소음 신호의 토널 주파수 탐지

30 September 2019. pp. 543-548

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Abstract

The tonal signal caused by the machinery component of a vessel such as an engine, gearbox, and support elements, can be modeled as a sparse signal in the frequency domain. Recently, compressive sensing based techniques that recover an original signal using a small number of measurements in a short period of time, have been applied for the tonal frequency detection. These techniques, however, cannot avoid a basis mismatch error caused by the discretization of the frequency domain. In this paper, we propose a method to detect the tonal frequency with a small number of measurements in the continuous domain by using the atomic norm minimization technique. From the simulation results, we demonstrate that the proposed technique outperforms conventional methods in terms of the exact recovery ratio and mean square error.

Keywords

Passive sonar

Tonal frequency detection

Compressed sensing

Atomic norm minimization

수중 표적의 기어박스 및 보조 장치 등으로부터 방사되는 토널 신호의 주파수 성분은 처리하고자 하는 주파수 대역에 비해 상대적으로 적어 희소신호로 모델링될 수 있다. 근래에 토널 신호의 주파수 희소성을 이용하여 빠른 시간 내에 적은 수의 관측치로 토널 주파수를 복원하는 압축센싱 기반의 연구가 활발히 진행되고 있다. 기존의 방법들은 이산(discrete) 주파수 영역에서 주파수를 검출하기 때문에 이산화로 인한 basis mismatch error가 불가피하다. 본 논문에서는 atomic norm minimization을 이용하여 적은 수의 관측치로 연속(continuous) 주파수 영역에서 토널 주파수를 검출하는 기법을 제안한다. 모의실험을 통해 기존의 기법들에 비해 제안하는 기법의 성능이 정확성과 평균제곱오차 측면에서 우수함을 확인하였다.

키워드

수동소나

토널 주파수 검출

압축센싱

Atomic norm minimization

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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 : 38
No :5
Pages :543-548
Received Date : 2018-11-06
Accepted Date : 2019-06-24
DOI :https://doi.org/10.7776/ASK.2019.38.5.543

The Journal of the Acoustical Society of Korea ISSN:1225-4428(Print) 2287-3775(Online) 한국음향학회지

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