基于多维分配的多普勒盲区目标点迹-航迹关联方法

doi:10.12305/j.issn.1001-506X.2023.10.12

摘要/Abstract

摘要：

机载预警雷达固有的多普勒盲区(Doppler blind zone, DBZ)会造成目标航迹的中断, 而多目标杂波环境使航迹中断更为严重。在引入多普勒盲区信息的二维分配算法基础上, 提出了一种基于多维分配算法的多目标点迹-航迹关联方法。该方法充分利用目标航迹演变信息, 对雷达的连续多帧量测数据进行滑窗处理, 构建出多维分配的代价函数, 最后求得最小代价条件下函数的解, 该解即为目标点迹-航迹的分配结果。仿真结果表明, 在多目标杂波环境且存在多普勒盲区的条件下, 该方法的航迹中断率较二维分配算法有了进一步的降低。

关键词: 机载预警雷达, 多普勒盲区, 点迹-航迹关联, 多维分配, 代价函数, 航迹中断率

Abstract:

The inherent Doppler blind zone (DBZ) of airborne early warning radar can bring out target track termination with the worse effect in multi-target and clutter environment. Based on two-dimension assignment algorithm with DBZ information, a new plot-to-track association method based on multi-dimension assignment algorithm is proposed. Firstly, the evolution information of target track is used enough, and the radar's continuous multi-frame measurement data are used to perform sliding window processing. Secondly, the cost function of multi-dimension assignment is constructed. Finally, the solution of function on the condition of minimal cost is used as the targets plot-to-track assignment solution. The simulation results show that this method has further descent of track termination rate compared with two-dimension assignment algorithm in multi-target and clutter environment with DBZ.

Key words: airborne early-warning radar, Doppler blind zone (DBZ), plot-to-track association, multi-dimension assignment, cost function, track termination rate

中图分类号:

TN957

韩伟, 王国师, 晏凯, 宋亚伟. 基于多维分配的多普勒盲区目标点迹-航迹关联方法[J]. 系统工程与电子技术, 2023, 45(10): 3091-3097.

Wei HAN, Guoshi WANG, Kai YAN, Yawei SONG. Target plot-to-track association method in Doppler blind zone based on multi-dimension assignment[J]. Systems Engineering and Electronics, 2023, 45(10): 3091-3097.

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算法	平均位置估计均方根误差
算法	P_fa=0.01	P_fa=0.001
单类空量测法(二维分配)	1 063.4	983.6
两类空量测法(二维分配)	723.4	642.8
两类空量测法(三维分配)	642.3	512.3

算法	N_b次中断出现的频数											R_TBR	时间/s
算法	10	9	8	7	6	5	4	3	2	1	0	R_TBR	时间/s
单类空量测二维分配法	210	393	923	1 415	1 527	2 126	1 393	842	576	283	312	0.522 5	1.050
两类空量测二维分配法	0	0	0	0	38	108	216	634	2 065	3 102	3 837	0.106 3	5.850
两类空量测三维分配法	0	0	0	0	0	28	115	241	765	1 154	7 697	0.040 1	8.540

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