In order to have a good performance for maneuvering target tracking

A fuzzy variable structure interacting multiple model (FVSIMM) algorithm based on

H

∞

filter is proposed in this paper. It introduces

H

∞

filter as model-conditional filter

which keeps its robustness by constantly adjusting parameter

to improve the performance and the precision. Meanwhile

the algorithm takes model probabilities of the IMM algorithm as the input of fuzzy inference system. By the fuzzy logic inference to update model probabilities

it adjusts the number of models and parameters in real-time

reduces excessive competition

and realizes variable structure function. The simulation results indicate that

the algorithm has higher tracking accuracy than standard IMM algorithm.