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一种基于垂直合成孔径的水声目标被动定位方法
A passive localization method of underwater acoustic target based on vertical synthetic aperture
- DOI:
- 作者:
- 杨刚1, 徐仲恩1, 屈瀚文2
YANG Gang1, XU Zhong-en1, QU Han-wen2
- 作者单位:
- 1. 海军潜艇学院，山东 青岛 2660421;
2. 中国人民解放军92697部队，海南 陵水 572400
1. Navy Submarine Academy, Qingdao 2660421, China;
2. The 92697 Unit of PLA, Lingshui 572400, China
- 关键词:
- 垂直阵;合成孔径;目标定位
vertical array; synthetic aperture; target location
- 摘要:
- 针对潜航器空间尺度有限，无法装配大孔径基阵的问题，提出一种基于等效单阵元垂直合成孔径的水声目标被动定位方法，为水下潜航器被动探测能力提升提供一种新思路。利用潜航器装配的小孔径基阵，对目标产生的辐射噪声进行空间上的非时间同步采样，结合距离、深度、频率的三维搜索算法，对不同空间采样点数据进行相位补偿，合成大孔径垂直阵，实现水下目标被动定位，水池试验和海上试验均验证了算法的有效性。
Aiming at the problem that the space scale of underwater vehicle is limited and can not be equipped with large aperture array, a passive localization method of underwater acoustic target based on equivalent single array element vertical synthetic aperture is proposed, which provides a new idea for improving the passive detection ability of underwater vehicle. Using the small aperture array assembled by the submarine, the radiated noise generated by the target is sampled spatially in non time synchronization. Combined with the three-dimensional search algorithm of distance, depth and frequency, the data of different spatial sampling points are phase compensated, and the large aperture vertical array is synthesized to realize the passive positioning of underwater targets. The effectiveness of the algorithm is verified by pool test and sea test.
2023,45(3): 117-121 收稿日期：2022-03-25
DOI：10.3404/j.issn.1672-7649.2023.03.021
分类号：TB566
作者简介：杨刚(1988-),男,博士,讲师,研究方向为水声装备及军事应用
