基于交叉定位和Hough变换检测前跟踪的水下目标检测方法

doi:10.12305/j.issn.1001-506X.2023.07.05

Abstract

Abstract:

Aiming at the low detectability and concealment detection requirements of modern submarines, an underwater weak target detection algorithm based on cross positioning of airborne passive sonar buoy array and Hough transform track-before-detect is proposed. Firstly, a passive detection model of underwater targets based on linear buoy interception array is constructed, and the cross-positioning method of adaptive correlation is used to obtain the target position information and realize data preprocessing before detection. Secondly, the initial detection track is obtained by adopting the double-threshold Hough transform method of point accumulation and energy accumulation. Finally, using target motion constraints and the track merging method, false tracks are eliminated and the duplicate tracks are merged to improve the detection probability of underwater targets. Simulation results show that compared with the time-frequency detection method, this method can still maintain a higher detection probability under the condition of low signal-to-noise ratio, and the error range of detection probability is smaller.

Key words: underwater target, passive sonar, track-before-detect, Hough transform, double-threshold

CLC Number:

TB566

Xuemin WANG, Xiangyu ZHANG, Minghui WU, Wenhai LI. Underwater target track-before-detect detection method based on cross location and Hough transform[J]. Systems Engineering and Electronics, 2023, 45(7): 1957-1964.

Figures/Tables 11

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References 28

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信噪比/dB	检测概率/%			平均运行时间/s
信噪比/dB	WVD	WHT	本文方法	WVD	WHT	本文方法
5	67	77	80	25.7	35.1	37.2
10	72	83	83	23.6	23.6	23.8
15	78	86	85	23.3	23.4	23.3
20	80	88	89	22.1	22.1	22.2

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Underwater target track-before-detect detection method based on cross location and Hough transform

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指标	信噪比/dB
指标	0	2	4	6	8	10	12	14
检测概率/%	2	15	77	81	83	83.5	84	85