基于航迹关联的抗角闪烁跟踪算法研究  

Research on anti-angular scintillation algorithm based on track correlation

作　　者：闫晶一 于勇 张彬 韩伟 张剑琦 YAN Jingyi;YU Yong;ZHANG Bin;HAN Wei;ZHANG Jianqi(Beijing Research Institute of Telemetry,Beijing 100076,China)

机构地区：[1]北京遥测技术研究所,北京100076

出　　处：《遥测遥控》2022年第3期94-102,共9页Journal of Telemetry,Tracking and Command

摘　　要：角闪烁背景下,高分辨雷达在近距离跟踪阶段存在不能精确跟踪的问题。针对此问题,分析了基于距离高分辨的单脉冲测角方法,并在此基础上,结合距离向强散射点的幅度特征,提出了一种基于航迹关联的抗角闪烁跟踪算法。算法首先对和通道、方位差通道、俯仰差通道的回波信号分别进行脉压和相参积累;然后在和通道的高分辨一维距离向上实现目标强散射点的检测,依据幅度进行排序并输出各点的距离信息和角度信息;最后利用联合集成概率数据互联算法作为目标跟踪滤波算法进行跟踪。本文通过对ku波段实测数据中入射余角为60°~69°的近距离跟踪部分进行分析,将所提算法与卡尔曼滤波跟踪算法进行了对比,仿真结果表明,本文算法使多目标跟踪的精度得到了提高,具有更好的角闪烁抑制性能。In angular scintillation background,high resolution radar can not track accurately in the close range tracking stage.To solve this problem,the monopulse angle measurement method based on range high resolution is analyzed in this paper,and an anti-angle scintillation tracking algorithm based on track correlation is proposed based on the amplitude characteristics of strong scattering points in range.Firstly,pulse pressure and phase-coherent accumulation are carried out for echo signals of sum channel,azimuth channel and pitch channel respectively.Then the strong scattering points are detected at the high resolution one-dimensional distance of the channel and sorted according to the amplitude,and the distance information and angle information of each point are output.Finally,the joint ensemble probabilistic data interconnection algorithm is used as the target tracking filtering algorithm.By analyzing the short-range tracking part of Ku band measured data with incident residual angle of 60°~69°,this paper compares the proposed algorithm with Kalman filter tracking algorithm.Simulation results show that the proposed algorithm improves the accuracy of multi-target tracking and has better angle scintillation suppression performance.

关 键 词：分布式目标 角闪烁问题 单脉冲测角 航迹关联 

分 类 号：TN958.4[电子电信—信号与信息处理]