加载龙伯透镜反射器的靶标RCS改型设计与仿真

摘要

针对武器装备试验、训练构建实战化空情模拟条件的要求，提出利用小型靶标加载龙伯透镜反射器模拟空袭武器雷达散射截面（Radar Cross Section，RCS）的方法。基于FEKO电磁仿真软件，分析了龙伯透镜反射器（Luneburg-Lens Reflectors）散射机理和散射特性影响因素，对不同形状、尺寸和位置反射板的龙伯透镜反射器RCS特性进行了数值仿真，总结了反射板对反射器RCS的影响规律，重点基于反射器对靶标RCS起伏特性进行了改型设计，对靶标加载单个和两个龙伯透镜反射器进行了联合仿真计算和分析。结果表明，利用靶标加载龙伯透镜反射器可以实现RCS改型的目的。%For the demand of weapon equipment test and air combat simulation, this paper proposes one method that small targets loaded with Luneburg-Lens reflectors can simulate the Radar Cross Section (RCS)of the assault aircrafts. Based on FEKO software,the electromagnetic scattering of Luneburg-Lens reflectors is calculated and analyzed in the term of different shape,size and position of reflector plates. The Luneburg-Lens reflectors are used to change and design the fluctuation characteristic of RCS of targets. The targets loaded with single and double reflectors are simulated and analyzed,which results indicate the feasibility of this method.