摘要
全球卫星导航系统(Global navigation satellite system,GNSS)抗干扰接收机的性能测试方法研究,对提高卫星导航系统在实际应用环境下的安全性与可靠性具有重要意义。本文提出了一种基于微波暗室改进的GNSS抗干扰接收机的测试方法,该方法通过扩大模拟信号的视场角范围,实现了卫星信号的多路输出、干扰信号的动态模拟。和传统的卫星信号单路输出、干扰信号静态模拟的测试方法相比,本文提出的测试方法能够逼近室外真实的测试环境,提高了抗干扰接收机性能测试的准确性。最后通过数字仿真,分析了干扰源与信号源的夹角关系及信号模拟误差对抗干扰接收机测试带来的影响。
Research on performance test method of GNSS anti-jamming receiver is vital to im- prove the safety and reliability of satellite navigation system under actual application environ- ment. Therefore, an improved test method of GNSS anti-jamming receiver is presented by ex- panding the viewing angle range of analog signal based on microwave chamber. The method re- alizes multiple output of satellite signal and dynamic simulation of interference signal. Compared with the traditional test methods, such as signal output of satellite signal and static sim- ulation of interference signal, the proposed method can approximate the external reality test environment, which improves the accuracy of anti-jamming receiver performance test. Finally, through digital simulations, the influence of the angle between interference source and signal source as well as the signal simulation error on anti-jamming receiver test is also analyzed.
出处
《数据采集与处理》
CSCD
北大核心
2013年第6期807-811,共5页
Journal of Data Acquisition and Processing
关键词
全球卫星导航系统
抗干扰接收机测试
多路输出
动态干扰
global navigation satellite system （GNSS）
anti-jamming receiver test
multiple output
dynamic interference
