基于PDA的群目标合并与分离方法研究

针对飞行编队形成的群目标航迹关联的特殊性,分析了照射质心的编队群目标成员合并与分离检验方法的优缺点,定义了群目标成员合并与分离检验涉及的3要素:位置、速度和航迹历史。在此基础上,提出了基于概率数据关联(PDA)的群目标成员合并与分离的检验方法。该方法利用群目标等效回波统计中心更新滤波器状态,将每一个雷达周期的量测与统计中心关联判别,从而减少了关联次数,提高了正确判别群目标成员合并与分离的概率。仿真结果证明了该方法的有效性。

A Study on Group Target Merging and Splitting Method Based on PDA

Group target track association is a special issue comparing with single target track association,because there are many echoes appearing in every scanning period,so three factors such as location,speed and track history are proposed dealing with group target merging and splitting method.A concept of group-target is proposed in order to solve this targets tracking problem in the view of maneuvering target tracking and data association using the three factors.A new group target merging and splitting method based on PDA is put forward using the equivalent echo of the group-target and its statistic centroid.By associating every echo to group target' statistic centroid,we can decrease computational mount,and improve the right probability of group target merging and splitting.The simulation results prove the efficiency of group target merging and splitting method.