In allusion to the difficulty of recognizing IR small targets in sky background and the lowness of recognition reliabilities

a new improved method of small targets recognition is proposed based on the previous methods. The information of the targets’ velocity and gray is regarded as the major basis of recognition

while the information of track of the targets is regarded as the additional basis. When the targets can not be recognized by only using the information of targets’ velocity and the gray

the information of targets’ tracks is added to the evidences to fuse using the unfair D-S evidence information fusion method. Simulation results show that recognition reliabilities are raised to previous 125% without adding new sensor.