卫星导航信号监测技术

Satellite Navigation Signal Measuring Technique

卫星导航信号监测技术是导航系统监测站的核心内容。文中介绍一种实时性强、处理精度高、可靠性好的导航信号监测技术,对监测接收机输出的实时观测数据和导航信号进行分析、处理,给出其合理性、完好性和定位精度分析,同时输出该原始数据。通过在卫通设备上实现伪距精密测量、设备时延精确校定,监测站能够配合导航系统进行站间时间同步,同步精度小于3ns。

The satellite navigation signal measuring technique is the core content of measuring stations of a navigation system.This paper introduces the navigation signal measuring technique which has a better real-time performance,a higher processing accuracy and a better reliability.Then the real-time observation data and navigation signals,which are exported from the measuring receiver,are analyzed and processed.The rationality,quality and positioning precision are analyzed.In the meantime the original data are exported.By means of the distance measuring and equipment delay measuring realization,the measuring station can achieve Two Way Satellite Transfer Time(TWSTT) along with the navigation system,and the error of TWSTT is less than 3ns.