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针对交互式多模型(Interactive Multiple Model,IMM)滤波算法在对反舰导弹的“蛇形”机动方式进行跟踪时收敛速度慢、滤波精度低的问题,在三维空间内,假定目标以匀速直线和蛇形机动两种方式进行运动,以相对距离和视线角为观测信息,对交互式多模型滤波算法的模型概率更新模块进行改进,提出了基于模糊逻辑的交互式多模型(Fuzzy Logic Interactive Multiple Model,FTIMM)滤波算法。通过仿真对比分析,改进后的算法能够有效地提高收敛速度,进而获得更高的跟踪精度。
In order to solve the problem of slow convergence speed and low filtering accuracy of the anti-ship missile’s “serpentine” maneuvering method, an interactive multiple model (IMM) filtering algorithm is proposed. In the three-dimensional space, Two kinds of movements of snake-like maneuver, the relative distance and line of sight for the observation information, the model of the interactive multi-model filtering algorithm to update the probability of the module is proposed based on the fuzzy logic of the interactive multi-model (Fuzzy Logic Interactive Multiple Model , FTIMM) filtering algorithm. Through the simulation comparative analysis, the improved algorithm can effectively improve the convergence rate, and then get a higher tracking accuracy.