航迹关联是航迹融合中的关键步骤。在对同一编队内多个目标进行多雷达航迹关联时,受系统误差残差的影响,航迹关联正确率无法满足使用要求。为了解决此问题,文中在多雷达航迹关联过程中引入JPDA 算法,通过选择合理的联合事件来计算航迹关联似然值,并构建系统仿真模型,针对工程实用的经验JPDA 和次最优JPDA 算法进行了分析,通过比较原始的航迹关联结果和分别加入两种JPDA 算法后的航迹关联结果,能够表明JPDA 算法对于编队多目标环境下的航迹关联正确率有较好的提升作用。

Track association is the key step of track fusion. While implementing multi-radar track association on multiple targets in the same formation, the accuracy of track association cannot meet the actual requirements due to the system error and residual error. In order to solve this problem, JPDA was introduced into the procedure of multi-radar track association. Properly chosen joint events were used to calculate the likelihood value of track association and the system simulation model was built. And then the empirical JPDA used in practice and the suboptimal JPDA were both analyzed. By comparing the results of the classic algorithm and the results of JPDA, specific to formation multi-target track association the improvement of accuracy brought by JPDA was proved.

TN958