基于双向最近邻准则的编队预定目标选择方法

相比传统的预定目标选择方法，基于编队形状的反舰导弹预定目标选择方法是一类性能优越的新方法。其原理是利用导弹飞行期间舰艇编队形状的相对稳定性，并将发射前装订的编队形状和末制导雷达探测到的编队形状表示为2个点集，通过点集匹配实现预定目标选择。提高这类算法性能的关键在于研究合理的点集距离函数。文章提出一种基于共同点的距离函数，研究了其抗干扰的机理，并证明其计算过程可通过双向最近邻准则实现。仿真试验表明该方法性能优于以往的MHD方法。

Method to Select the Target in Ship Formation Based on Dual way Nearest Neighbor Rule

Target selection method based on shape of ship formation （SFF） is superior to those of tra- ditional. Generally, SSF changes little during the flying of anti-ship missile. Having made use of this phenomena, and described the SSF binded to missile before launching and that detected by ter- minal guidance radar as two different point sets, the target selection is realized by point set match- ing. The key to get excellent algorithm in SFF method is to study a resonable distance function be- tween two point sets. In this paper, distance function was presented based on common points of the two point sets.The principle of the distance function was studied, and it was proved that the dis- tance function could be implemented by bidirectional nearest neighbor rule （NNR）. Simulation re- salts showed that the target selection mehtod based on NNR ,~was superior to that based on mean hausdorff distance （MHD）.