城市CORS网的基站稳定性分析研究

Analytical Research on the Stability of the Urban CORS Network Base Station

连续运行参考站系统(continuous operational reference system,CORS)为若干个固定的、连续运行的GPS参考站,利用现代通信技术,实时地向用户提供GPS观测值(载波相位、伪距)、各种改正数、状态信息以及其他有关GPS服务项目的系统。针对城市CORS网基站稳定性的问题,采用双差解算方法对香港CORS网基站数据进行处理,重点分析了该CORS网的静态解收敛性和基站坐标移动收敛性,得到了CORS网基站稳定性高的特点。并系统地阐述了CORS网的作用以及所具有的优势。

Continuously operating reference station system can be defined as one or more fixed,continuous operation of GPS reference stations whichuses modern communicationtechnology to provide users in real time with GPS observations(carrier phase,pseudo-distance),all kinds of corrections,state information,and other related GPS services.Aiming at the problem of base station stability of urban CORS network,this paper uses double difference resolution model to process the data of the base station of Hong Kong CORS network,analyzes mainly the convergence of static solution and base station coordinate movements of this CORS network,revealing the high stability of base station in CORS network.The functions and advantages of CORS network are also expounded systematically.