| 许高凤,安妍妍,杨丰茂,张乔,靳仕源.基于组合线阵的近程运动小目标被动定位跟踪[J].,2020,39(1):149-157 |
| 基于组合线阵的近程运动小目标被动定位跟踪 |
| Passive location and tracking method of short range moving target based on combined linear array |
| 投稿时间：2019-03-26 修订日期：2020-01-02 |
| 中文摘要: |
| 针对水下运动小目标被动探测与定位问题，提出了分段组合子阵联合处理探测方法，各探测子阵采用相互垂直结构布局，克服了单阵方位模糊及无法定位等问题。研究了分段组合子阵的宽带最小方差无畸变失真响应近场聚焦目标定位方法，实现了近程蛙人等水下小目标被动高精度定位。在此基础上，采用卡尔曼滤波算法对目标运动轨迹进行预测估计，将目标定位信息与跟踪轨迹信息进行匹配，实现高背景噪音下的运动小目标的跟踪处理。理论分析及仿真结果表明，分段子阵联合处理能有效对水下运动小目标进行定位和跟踪，海试试验进一步验证了该方法的有效性。 |
| 英文摘要: |
| Aiming at the problem of passive detection and positioning of underwater moving small targets, a method of joint processing and detection of subsection combined subarrays is proposed. In order to solve the problem of ambiguity of a single linear array, a special-shaped array composed of multiple vertical linear arrays is designed. Based on the broadband minimum variance distortionless response focused beam-forming method, the covariance matrix is modified. Combined with the advantages of the combined linear array, the passive and high-precision positioning methods for underwater small targets such as frogman are studied. The combined linear array used in this paper effectively avoids ambiguity in positioning. On this basis, Kalman filter algorithm is used to make a reasonable inference of the position of moving target, to ensure that the target is not missed detection due to environment interference, and then the tracking and location of moving target is realized by matching algorithm. The theoretical analysis and simulation results show that the combined linear array can effectively locate and track underwater moving targets in short range. The data processing results of sea trial further verify the effectiveness of this method. |
| DOI：10.11684/j.issn.1000-310X.2020.01.019 |
| 中文关键词: 组合线阵 小目标 被动定位 定位跟踪 左右舷模糊 |
| 英文关键词: combined linear array small targets passive location target location and tracking ambiguity of a single linear array |
| 基金项目: |
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