Based on the theory of the estimation and fuzzy logical system

this paper proposes a data association algorithm of the fuzzy logic-probability interacting

to solve the data association problems typically encountered in the applicationof multisensor in tracking a maneuvering target in a heavily-cluttered environment. The combination of fuzzy association degree and probabilistic association forms the weights that the ith received measurment is target originated. The proposed dataassociation algorithm counteracts the weaknesses of probabilistic data association filter （PDAF）

and improves the performances of tracking a maneuvering target in a heavily-cluttered enviroment.