电磁兼容试验中卫星信号覆盖技术研究与实现

Research and implementation of satellite signal coverage technique in electromagnetic compatibility testing

分析了卫星导航、电磁兼容试验和室内移动通信信号覆盖技术的基本原理,以及卫星信号模拟器的缺陷,排除其作为卫星信号覆盖方案的可能性。根据移动通信室内信号覆盖技术的设计思路,提出一套卫星信号覆盖系统的设计方案,并对整个系统的功率链路预算进行研究,实现了硬件系统的搭建。通过驻波比、输出特性、搜星数的测试,验证了系统良好的信号覆盖功能。

This paper analyzes the basic principles of satellite navigation, electromagnetic compatibility test and indoor mobile communication signal coverage technique, and discusses the defects of the satellite signal simulator, which is excluded as a satellite signal coverage scheme. According to the design idea of indoor mobile communication signal coverage technique, this paper proposes a design scheme of satellite signal coverage, and conductes the research to the link power budget for the whole system, meanwhile realizes the building of hardware system. The good signal coverage function of the system is verified by the test of standing-wave ratio, output characteristic and the number of searching stars.