摘要
超视距反舰导弹(Anti-ship missile,ASM)在选择预定目标时,目前普遍采用的瞄准点选择方法受自控终点散布和目标机动影响较大。为此提出了一种基于Hausdorff距离的预定目标选择方法,该方法不受自控终点散布和编队目标整体机动的影响。原理是将火控雷达探测到的编队和末制导雷达探测到的编队都用平面点集表示,然后对这两个点集进行匹配,从末制导雷达探测到点集中找到火控雷达装订点(即指定目标)的对应点(即预定目标)。实现该方法时首先利用部分Hausdorff距离(Partial Hausdorff distance,PHD)的二阶差分特性剔除远处干扰点,然后利用平均Hausdorff距离(Mean Hausdorff distance,MHD)在对抗近处干扰的同时获得最佳匹配位置,最后在最佳匹配位置下利用双向最近邻准则获取对应点。仿真实验表明,该方法选择预定目标的概率高于瞄准点选择方法。
The scheme using the aiming point is widely used at present to acquire the correct target ship for over-the-horizon anti-ship missile（ASM）.However,it is greatly influenced by the terminal dispersion of previous self-control phase and the target ship maneuver.There-fore,a target selection method is proposed based on Hausdorff distance,and the proposed method is independent of the terminal dispersion of self-control phase and the consistent maneuver of ship formation.The principle of the method is that two ship formations separately detected by fire-control radar and terminal guidance radar are described with point sets in a plane;then the target selection is realized by matching these two point sets,i.e.finding the correspondence of the designated ship in the point set detected by the fire-control radar from the point set detected by the terminal guidance radar;finally,the correspondence of the designated ship is the target ship.To implement the method,the merit of the second-order difference of the sequence of partial Hausdorff distance（PHD） is used to delete the distant interferences;then the mean Hausdorff distance（MHD） is applied to acquire the optimal matching position,and to confront the interferences in vicinity at the same time.Finally,the correspondences are acquired by bidirectional nearest neighbour rule at the optimal matching position.Simulation results show that the probabilities to select the target ships using the proposed method are higher than those using the aiming point scheme.
出处
《数据采集与处理》
CSCD
北大核心
2011年第2期146-151,共6页
Journal of Data Acquisition and Processing
