靶机挂载可变 RCS龙勃透镜时的 RCS起伏特性

训练用靶机尺寸远小于实战中的飞机,其 RCS数值大小和起伏特性与飞机存在较大的差别。为了以低廉的价格为部队训练提供高逼真度的模拟靶机,在靶机机头、翼下等位置放置一定样式的可变 RCS龙勃透镜,可以得到类似实战中飞机的 RCS特性。通过控制龙勃透镜的反射面位置可以改变其 RCS数值,实现模拟靶机 RCS的数值变化。采用靶机挂载可变 RCS龙勃透镜对 MQ-1无人机前向 RCS起伏特性进行了模拟,取得了较好的效果,可为采用靶机挂载可变 RCS龙勃透镜模拟作战飞机的全向 RCS特性提供借鉴。

RCS Fluctuation Characteristics of Drone Aircraft Mounted with Variable RCS Luneberg Lens

The size of the military training drone aircraft is much smaller than that of the aircraft in actual combat, at thesame time the RCS value and fluctuation characteristics of the drone aircraft are quite different from that of the aircraft. Inorder to provide high fidelity simulated target aircraft for training at a low price, Luneberg lens are arranged at specific posi.tions such as the nose and under the wing of the drone aircraft, and the fluctuation characteristics of the radar cross section(RCS) is similar to the real aircraft. Based on the mechanism that controlling the movement of the reflecting surface of theLuneberg lens can realize the change of the RCS, the forward RCS fluctuation characteristics of MQ-1 UAV is simulated byusing the drone mounted with variable RCS Luneberg lens, and good results are obtained, which can provide a reference forusing the drone to simulate the omni-directional RCS characteristics of the combat aircraft.