Discrimination of point targets in space with same motion characteristics

The detection, recognition and tracking of point targets are the critical technology to lengthen the action distance of detection system. To discriminate the targets in same space orbit with same coating but have different shell thickness, the characteristic in infrared band is discussed in this paper. The algorithm for the computation of the radiation characteristics is presented at first. And then, on the basis of a large amount of infrared radiation data, the features for discriminating the targets are recommended. Finally, an ANN method is put forward to implement the discrimination.