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

作　　者：金戎轩 JIN Rongxuan(Department of Electronic Engineering,Xi’an Aeronautical Institute,Xi’an 710077,China)

机构地区：[1]西安航空学院电子工程学院,陕西西安710077

出　　处：《通信与信息技术》2024年第1期26-28,40,共4页Communication & Information Technology

基　　金：国家自然科学基金青年项目“基于雷达图像与电磁特征融合的地面环境中车辆目标高精度智能识别方法研究”(项目批准号:62201443)。

摘　　要：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.

关 键 词：时间环 反馈环 纳秒级 定位基站 

分 类 号：TN967.1[电子电信—信号与信息处理]