【摘要】 设计并搭建了全球卫星导航系统(GNSS)脆弱性计算机仿真验证环境,并对GNSS信号传输环境的评估方法进行了计算机仿真实现;GNSS脆弱性仿真验证环境由空间信号环境子系统、空间段脆弱性仿真子系统、脆弱性评估验证子系统等组成,可提供包括GNSS信号传输全链路干扰的的仿真、验证与缓解;文章着重介绍了该仿真环境的系统构成及功能,对GNSS信号传输环境的评估方法进行了细分。并完成了脆弱性评估验证平台环境的软硬件实现,通过既定的评估方法及验证标准步骤及途径,完成了空间段脆弱性链路仿真,SAIM对星间链路的监测,GNSS脆弱性评估软件实现数据等结果分析,实验结果证明系统方案合理有效。更多还原

【Abstract】 I introduces the design and construction of global navigation satellite systems(GNSS) vulnerability simulation environment.The simulation environment contains simulation of the signal-in-space environment,simulation of the vulnerabilities in the space segment,vulnerability assessment and validation.It provides a set of integrated simulations of different types of interference in the GNSS signal propagation domain,including electromagnetic interference,atmospheric disturbances,multipath,and interference in the inter-satellite link.This paper focuses on the design of the main system modules and testing through an experimental analysis.Through the evaluation method established and verification procedures and approaches,Complete the space segment vulnerability link simulation,monitoring the inter satellite link SAIM,analysis of the GNSS vulnerability assessment software to realize data results.The experimental results show that the system scheme is reasonable and effective.更多还原