基于最近邻算法的FMCW雷达多目标跟踪研究  

Research on multi target tracking of FMCW radar based on nearest neighbor algorithm

作　　者：扆泽江 曲毅[1] 刘明飞 YI Zejiang, QU Yi, LIU Mingfei(College of Information Engineering, Engineering University of PAP, Xi＇ an 710086, China)

机构地区：[1]武警工程大学信息工程学院

出　　处：《激光杂志》2018年第11期102-106,共5页Laser Journal

摘　　要：针对在目标跟踪过程中虚假目标过多的问题,利用雷达测得的径向速度对目标的真实速度进行了重构,增加了速度大小和方向两个特征,并利用模糊函数对最近邻算法进行改进;而后将其作为状态向量的一部分,采用交互式多模型算法对关联后的航迹进行更新,完成目标跟踪过程,解决了多航迹竞争观测值的问题。最后从速度的方向估计、单目标跟踪、多目标跟踪三个方面进行了仿真实验,结果表明,算法改进后,雷达的多目标跟踪能力明显提高。Aiming at the problem of too many false targets in the process of target tracking,the real velocity of the target was reconstructed by the radial velocity measured by radar,the two characteristics of the speed and direction were added,and the nearest neighbor algorithm was improved by using the fuzzy function. Then,as a part of the state vector,the interactive multi model algorithm was used to update the track after the correlation,and the target tracking process was completed,and the problem of the multi track competition observation value was solved. Finally,the simulation experiments are carried out from three aspects,the direction estimation of the speed vector,the single target tracking,and the multi target tracking. The results show that the radar＇s multi target tracking ability was obviously improved after the algorithm was improved.

关 键 词：目标跟踪 速度重构 最近邻算法 航迹更新 

分 类 号：TN957[电子电信—信号与信息处理]