多星座卫星导航对抗测试系统设计与实现

对卫星导航设备进行导航对抗性能测试,实现测试场景的可重复和可控性,需要在暗室内实现对外场测试环境的仿真,模拟卫星星座信号和各个来向的干扰信号。针对测试需求,设计了一种基于导航暗室的多星座卫星导航对抗测试系统,能够模拟多星座卫星导航信号和干扰信号的空域特征,仿真卫星信号及干扰信号的分布场景,在时间上能覆盖导航卫星星座的整个信号周期,在空间上可模拟接收信号的来波方向及静态、动态空间特性。

Design and Implementation on Multi-constellation GNSS Countermeasure Test System

To test the performance of navigation countermeasure for satellite navigation equipment and realize the repeatability and controllability of test scene,it was necessary to setup the field testing environment in darkroom,so as to simulate the satellite constellation signal and interference signal from each direction of incoming wave.Aiming at the testing requirement,a multi-constellation satellite navigation countermeasure test system is designed based on navigation darkroom.The test system can be able to simulate the spatial characteristics of multi-constellation satellite navigation signals and interference signals,in the meantime,simulate the distribution of real satellite signal and interference signal.And the system can cover the whole signal cycle of navigation satellite constellation in time,and simulate the direction-of-arrival and static and dynamic spatial characteristics of received signals in space.