基于微波暗室GNSS抗干扰接收机的测试方法

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。

Test method of GNSS anti-jamming receiver in microwave anechoic chamber

Research on performance test method of GNSS anti-jamming receiver is very important to improve the safety and reliability of satellite navigation system under actual application environment. This paper presents an improved test method of GNSS anti-jamming receiver by expanding the viewing angle range of analog signal based on microwave chamber, the method realizes multiple output of satellite signal and dynamic simulation of interference signal. Compared with the traditional test method, which are signal output of satellite signal and static simulation of interference signal, the method proposed in the paper can approximate the external reality test environment, which improves the accuracy of anti-jamming receiver performance test. Finally, through the digital simulations, the influence on anti-jamming receiver test brought by the angle of interference source and signal source and simulation error of signals is also analyzed.