卫星导航电离层闪烁环境保障方法研究

Study on the Mitigation Methods of Ionospheric Scintillation of Global Navigation Satellite System

电离层闪烁会导致卫星导航接收机的导航定位误差增大,严重时会使其导航定位中断。电离层闪烁严重影响了卫星导航系统正常应用和多种高端应用,如生命安全服务、高精度测量等。从提升卫星导航接收机抗电离层闪烁能力、研制基于国家PNT体系结构的集成导航定位装备、建立电离层闪烁预报预警保障机制三个方面探讨了电离层闪烁环境保障方法,以确保导航定位能力。

Ionospheric scintillation can result in larger position errors of GNSS receivers.Its worst effect is to cause a loss of lock on the signal and results in GNSS service interruption.The ionospheric scintillation has practical importance in general applications of global navigation satellite system and a few high precision applications,including service of life safety and geodesy measurement.The mitigation methods of ionospheric scintillation were analyzed from three aspects：improving the scintillation resistant capability of GNSS receivers,manufacturing the integrated navigation and positioning equipment based on national PNT architecture and developing the forecasting and alarm system of ionospheric scintillation.