Fast data association algorithm for passive multisensors

A data association algorithm for multiple passive sensors is presented in this paper. The algorithm is based on the intensity of space intersection made by measurements. Dividing the set of all possible targets into several subsets, starting with the subset which has the best probability under the restraint of data association rule, the real target can be found quickly. Numerical simulation with perfect detection probability and zero false alarm has been carried out and the results show that the algorithm has excellent performance in terms of computation time.