提出了基于结构特征的空间目标识别算法。卫星结构的对称性使得卫星的一维距离像具有对称性，碎片结构的不对称性使得碎片的一维距离像不具有对称性，文中首先应用RELAX算法提取出目标的强散射中心的位置和幅度，然后根据模式匹配和对称性测度两种方法来检测强散射中心是否具有对称性，进而对卫星和碎片进行识别。经过计算机仿真实验，该算法取得了比较好的识别效果。

A space target recognition algorithm based on structure feature is suggested in this paper. One-dimensional range profile of satellite is symmetrical due to symmetrical property of satellite structure, but one-dimensional range profile of debris is asymmetrical due to asymmetrical property of debris structure. Firstly location and amplitude of strong scatter centers of target are extracted using RELAX algorithm, then symmetrical property of strong scatter centers is tested according to two methods named pattern match and symmetricity measure and satellite and debris are recognized. Good recognition effect of this algorithm is shown by finally computer simulation experiment.

V474.2

“十五”国防科技预研项目