为了合理设计飞行器载GNSS接收机动态抗干扰试验布局,需要对目标航迹上的干扰信号辐射场分布特征和变化范围进行仿真。文中利用结合镜像原理和等效原理的角锥喇叭辐射场半解析计算方法,使得快速计算航迹上任一点的辐射场成为可能。在此基础上,结合抗干扰试验布局的一般性要求,对典型布局场景下的干扰信号辐射场分布特征进行了仿真和对比研究,给出了该类试验布局设计方法和规律,并提出验证了一种干扰瞄准偏离修正方法。

When an anti-jamming test of a GNSS receiver on moving aircraft is carried out, it's necessary to simulate the EM field's distribution characteristic on flight path to get the most rational layout. In order to do this, we involved a half-analytical method which combined image theory and the equivalence principle so that the calculation can be implemented fast and easily. Firstly, the general request for anti-jamming test layout is proposed. Then, By calculating the radiation fields under typical test layout scenarios, the general rules of anti-jamming test layout is drawn out, and an aiming correcting method is proposed and validated.