基于GRECO的军用复杂目标RCS数据库生成

为了更好地建立对空情报雷达装备仿真模型,通过图形电磁计算（GRECO）方法,利用Bezier曲面对军用复杂目标进行几何建模.分别运用物理光学（PO）、物理绕射理论（PTD）和等效电磁流法（MEC）,对理想导体曲面、棱边和涂覆吸波曲面实时计算高频区局部雷达散射截面（RCS）,并给出了军用复杂目标高频区RCS估算流程.通过实例求解出相应的目标RCS值,并生成了目标RCS数据库.仿真结果具有一定的工程实现价值.

Generation of Military Complex Target RCS Database Based on GRECO

In order to establish the simulation model of air intelligence radar equipment,this paper presents the modeling of military complex target using Bezier curve surface in terms of the graphical electromagnetic computing（GRECO） method.The local radar cross section（RCS） in high frequency range is computed in real time with respect to the ideal conductor curve surface,wedge and the curve surface coated with wave absorption material,respectively by applying the physical optics（PO）,physical theory of diffraction（PTD） and method of equivalent currents（MEC）,and the estimate process of RCS in the HF range given for military complex targets.Finally,through examples,the corresponding target RCS is solved and the target RCS database generated.The simulation results are of the value of engineering implementation.