GNSS脆弱性环境仿真系统设计

Design on environment simulation system of GNSS vulnerability

设计了一种GNSS脆弱性环境仿真系统,该系统提供包括GNSS信号传输全链路干扰(GNSS电磁干扰、大气电磁环境、空间链路故障)的综合仿真。该系统主要由空间系统故障模拟器、欺骗/阻塞干扰器、信号模拟器、软件接收机及相应大气模型软件组成。该系统可实现GNSS系统不同脆弱性干扰场景下的仿真测试,产生干扰射频信号输出。介绍了系统主要模块的设计方案,并利用相应模块进行实验分析与效果显示,实验证明了各模块的有效性,系统方案的可行性。

A set of simulation system of GNSS vulnerability environment,which provides integrated simulation of interference in GNSS signal transmission link,which includes GNSS electromagnetic interferences,atmospheric electromagnetic environment,fault in space link is designed.The system mainly consists fault simulator of space system,deception/barrage jamming devices,signal simulators related software of atmospheric model.The system realizes simulation test under interference scenes of the GNSS system different vulnerability,and generates interference RF signal output.Designs scheme of main system modules is focused on,experimental analysis and effect display is carried out using corresponding modules,experiments show that each module is effective,and the system scheme is feasible.