Tonal signal detection in passive sonar systems using atomic norm minimization

EURASIP Journal on Advances in Signal Processing

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[1] 0000 0001 0727 6358, grid.263333.4, Dept. of Defense Systems Engineering, Sejong Univ., 209 Neungdong-ro, Gunja-dong, Gwangjin-gu, 05006, Seoul, South Korea;0000 0004 0470 5905, grid.31501.36, Dept. of Electrical and Computer Engineering, Seoul National Univ., 1 Gwanak-ro, Gwanak-gu, 08826, Seoul, South Korea;

关键词: Passive sonar;    Tonal signal detection;    Atomic norm minimization;   

DOI  :  10.1186/s13634-019-0641-5

来源: publisher

【 摘 要 】

Frequency estimation of a tonal signal in passive sonar systems is crucial to the identification of the marine object. In the conventional techniques, a basis mismatch error caused by the discretization of the frequency domain is unavoidable, resulting in a severe degradation of the object detection quality. To overcome the basis mismatch error, we propose a tonal frequency estimation technique in the continuous frequency domain. Towards this end, we formulate the frequency estimation problem as an atomic norm minimization problem. From the numerical experiments, we show that the proposed technique is effective in identifying the tonal frequency components of marine objects.

【 授权许可】

CC BY