微波超视距条件下舰船目标RCS分层计算方法

摘要

As for the scattering characteristics of ship targets in the conditions of atmospheric duct, a layered calculation method of radar cross section (RCS) was proposed. First, the incoherent integration condition was studied for local scatters with random fluctuation. Then, a layered calculation chart was given which included geometry modeling, model partition, visual surface determinant and average RCS calculation. Finally, the calculated results show that the method is effective in dealing with the target's RCS with different height.%针对微波超视距条件下海面舰船目标的散射特性,提出了一种舰船目标雷达散射截面(RCS)的分层计算方法.首先,研究并给出了随机摆动状态下舰船目标各局部散射体的非相干叠加条件；在此基础上,提出了微波超视距条件下舰船目标RCS的计算流程,针对目标的几何建模、模型划分、遮挡面判定、平均RCS计算等进行了详细阐述；最后,以某型舰船目标为例进行了RCS的分层计算,给出了目标RCS随着高度的分层变化关系.