基于SDE模型的雷达组目标角度跟踪方法  

A Radar DOA Tracking Method for Multiple Targets Based on SDE Model

作　　者：侯煜冠[1] 韩远鹏 谢金月 毛兴鹏[1] HOU Yuguan;HAN Yuanpeng;XIE Jinyue;MAO Xingpeng(School of Electronics and Information Engineering,Harbin Institute of Technology,Harbin 150001,Heilongjiang,China)

机构地区：[1]哈尔滨工业大学电子与信息工程学院,黑龙江哈尔滨150001

出　　处：《空天防御》2021年第1期41-46,共6页Air & Space Defense

基　　金：国家自然科学基金项目(61831009,61301209)。

摘　　要：针对低信噪比下的组目标实时跟踪精度低的问题,提出一种基于随机微分方程(stochastic differential equation,SDE)模型的多输入多输出雷达目标角度跟踪方法。应用随机微分方程进行建模描述,利用马尔可夫链蒙特卡罗粒子滤波算法来进行连续推理。仿真结果验证了该方法的有效性,并显示低信噪比情况下的组目标跟踪精度可提高20%以上。To solve the problem of low accuracy for multiple targets tracking in case of low SNR(signal noise ratio),a MIMO radar DOA(direction of arrival)tracking method based on SDE model is proposed in this paper to correct error of tracking model.The stochastic differential equation and the particle filter based on Markov Chain Monte Carlo(MCMC)are used for modeling and continuous reasoning for the multiple targets.The effectiveness of this method is verified by the simulation results,the tracking accuracy of motion multiple targets can be improved by more than 20%in case of low SNR.

关 键 词：组目标跟踪 随机微分方程 斥力模型 粒子滤波 

分 类 号：TN713[电子电信—电路与系统]