Data Association Algorithm for Three-Dimensional Heterogeneous Sensors

Fast and precise data association method plays an important role in the heterogeneous sensor information fusion system.In order to solve the typical problem of data association encountered in three-dimensional heterogeneous sensor system with 2D radar and IRST,a new method with two steps is presented.Firstly,the accurate azimuth and elevation of IRST and radial distance of 2D radar are used to obtain possible position in two-dimensional coordinate,and angle statistics is constructed to eliminate most false points.Finally,two-dimension assignment algorithm is used to achieve the optimum assignment solution.Simulation results show that the proposed method is an effective data association method,and accurate association probability is improved obviously.