针对航迹中断导致前后航迹不连贯的问题，提出一种基于模糊理论和证据组合的被动段弹道导弹中断航迹关联方法。首先，对新旧航迹分别进行航迹滤波和航迹预测处理，将获取的同一时段数据作为关联样本；通过对同时刻样本点之间各特征距离信息的模糊处理，获取关联隶属度，进而转化为证据理论中的基本概率指派；然后对各证据进行组合，得到各时刻的关联结果；最后根据连续时长内样本点的关联判定，得到最终的关联结果。仿真结果验证了所提方法的有效性。

To solve the problem that the new track can not be linked to the preceding track when the track breaks off in ballistic missile's unpowered phase, a method based on fuzzy theory and evidence combination is presented for interrupted track association.Firstly, the tracks before breaking are predicted according to missile prediction model, and those after breaking are filtered by missile filtering algorithm.The new tracks above are regarded as targets waited association, the tracks in the same time segment are regarded as association samples.Then, fuzzy processing is made to characteristic distances of sample points at the same moment from different tracks in order to obtain the association membership degrees, which can be transferred into Basic Probability Assignments (BPAs) in evidence theory, so the evidence combination result in each sample instant can be obtained.According to the combination results during a continuous time, the whole association result is obtained.The simulation results show the effectiveness of this approach.