基于三角稳定的海上目标航迹抗差关联算法

针对现有航迹抗差关联算法缺乏对海上目标航迹特点和规律的考虑、实际应用效果差的问题，根据典型的实测数据对比分析结果，结合海上目标位置变化慢、空间拓扑关联稳定的特点，以三角形稳定结构为基础，设计了适用于海上目标航迹的抗差关联算法。首先，构建拓扑三角形，通过三角形匹配系数和航迹图匹配系数进行阈值判断，得到航迹对的关联系数。其次，保留其中最大关联系数，构建航迹对关联系数矩阵。最后，采用最大关联系数和阈值判别原则，输出关联航迹。实测数据验证结果表明，所提算法成功实现了所有航迹的有效关联，明显优于对比算法，具有较强的稳定性和鲁棒性，可有效解决实际中海上目标航迹关联问题，实用性强。

Anti-bias association algorithm for marine target track based on triangular stability

Aiming at the problems of the existing track anti-bias association algorithms lack the consideration of the characteristics and principal of the marine target track and the poor practical application effect, according to the comparative analysis results of typical measured data, combined with the characteristics of slow change of marine target position and stable spatial topology association, and based on the triangle stable structure, the anti-bias association algorithm for marine target track is designed. Firstly, the topological triangle is constructed, and the threshold is determined by the triangle matching coefficient and the track map matching coefficient, and the correlation coefficient of the track pair is obtained. Secondly, the maximum correlation coefficient is retained and the track pair correlation coefficient matrix is constructed. Finally, the maximum correlation coefficient and threshold discrimination principle are used to output the associated track. The experimental results show that the proposed algorithm achieves the effective correlation of all tracks, which is obviously better than the comparison algorithms, and has strong stability and robustness. It can effectively solve the problem of track association of maritime targets in practice, and has strong practicability.