一种基于地面组网的高精度定位系统设计与研究

Design and research of a high-precision positioning system based on ground-based networking

时间环(Time-Loop)技术是以一台基站作为主时间标准,其他的基站与主基站之间进行时间同步,时间同步采用的是纳秒级信号。其原理是安装在辅助基站内部的时间信号接收机同时接收来自主基站和本基站的时间信号,由此形成一个时间信号反馈环,使之与主基站逐渐同步。然后再来测量和调整自主基站的信号,等待辅助基站与主基站完全同步后,辅助基站发出一个“健康”信号就可以并入定位基站的星座系统。

Time-Loop technology uses one base station as the main time standard,and other base stations are synchronized with the main base station,using nanosecond signals for time synchronization.The principle is that the time signal receiver installed inside the auxiliary base station receives the time signals from both the autonomous base station and the home base station,thus forming a time signal feedback loop to gradually synchronize with the home base station.Then measure and adjust the signal of the autonomous base station,wait for the auxiliary base station and the main base station completely synchronized,the auxiliary base station sends a"healthy"signal can be integrated into the constellation system of the positioning base station.