The identity recognition of orbital cluster targets is the premise of fusing the detection information of each sensor.Normally,the detection information of cluster targets comes from radar,infrared and other heterogeneous sensors.Aiming at the problem of identity recognition of heterogeneous sensors in the case of target mismatch is analyzed,and the motion characteristics of the orbital target in the 2D angle plane of the infrared sensor,and proposes a method of multi frame identity recognition for heterogeneous sensors based on Hough transform is proposed.The simulation results show that the matching accuracy of heterogeneous sensor in target mismatch is improved effectively.

The kinematic models of the powered phase and the free flight phase of a ballistic missile are different. The accurate estimation of the shutdown state is of great significance to the handover of the tracking information processing mode. Based on radar tracking, the thrust acceleration is used as the eigenvalue to estimate the shutdown state. The observational equation is derived. In view of the nonlinear problem of the observation equation, the recursive least square (RLS) algorithm is used to obtain the recursive estimation of the thrust acceleration by the linearization of random variables. Through the error analysis, the method of calculating the threshold of shutdown state is given. The simulation shows that the estimation method can give the shutdown state results in time and accurately.