基于改进概率假设密度滤波器的非合作双基地雷达目标跟踪

doi:10.12305/j.issn.1001-506X.2023.07.10

摘要/Abstract

摘要：

为解决非合作双基地雷达目标跟踪面临的低检测概率和高杂波率问题, 提出了改进的概率假设密度滤波器。首先, 提出一种新的航迹标识与状态估计方法, 并将存活概率定义为与目标状态相关的变量; 随后, 记录每个候选目标在每一时刻是否有量测的情况, 采用序贯概率比检验区分真实目标和由杂波引起的假目标; 最后, 离线估计目标状态。仿真实验结果表明, 所提算法明显提高了非合作双基地雷达目标跟踪的性能, 可以有效解决低检测概率和高杂波率问题。

关键词: 非合作双基地雷达, 目标跟踪, 改进概率假设密度滤波器, 序贯概率比检验

Abstract:

To solve the problem of low detection probability and high clutter rate in target tracking for noncooperative bistatic radar, an improved probability hypothesis density filter is proposed in this paper. Firstly, a new method of track identification and state estimation is proposed. Secondly, the survival probability is defined as a variable related to the target state. Thirdly, whether each candidate target is measured at each time is recorded, and real target and false target caused by clutter are distinguished using sequential probability ratio test. Finally, the target state is estimated offline. Simulation experiment results indicate that the proposed algorithm significantly improves the performance of target tracking for noncooperative bistatic radar, and can deal with the problem of low detection probability and high clutter rate effectively.

Key words: noncooperative bistatic radar, target tracking, improved probability hypothesis density filter, sequential probability ratio test

中图分类号:

TN953

王森, 鲍庆龙, 潘嘉蒙, 祝茜. 基于改进概率假设密度滤波器的非合作双基地雷达目标跟踪[J]. 系统工程与电子技术, 2023, 45(7): 2002-2009.

Sen WANG, Qinglong BAO, Jiameng PAN, Qian ZHU. Target tracking for noncooperative bistatic radar based on improved probability hypothesis density filter[J]. Systems Engineering and Electronics, 2023, 45(7): 2002-2009.

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