SBAS监测站构成及部署方法分析

Analysis of the composition and deployment methods of SBAS ground monitoring stations

星基增强系统(SBAS)可以增强全球卫星导航系统(GNSS)的定位精度和完好性服务等性能,满足以民航用户为主的服务需求.地面监测站是SBAS的重要组成部分,其构成、布局、数据质量等对星基增强系统的服务性能具有重要的影响.因此,本文以美国WAAS和欧洲EGNOS实测数据为基础,对地面监测站的构成及分布,监测站天线分布、监测站数据质量以及多路径相关性进行了详细的分析,总结出适用SBAS系统地面监测站构成及部署的通用方法,为SBAS监测站建设的实施途径提供参考.

The satellite Based Augmentation System(SBAS)can enhance the performance of GNSS positioning and integrity service to meet the needs of civil aviation users.The ground monitoring station is an important part of SBAS,and its composition,layout,and data quality have an important impact on the service performance of SBAS.Therefore,based on the actual observation data from the WAAS and EGNOS,the composition and distribution,the antenna distribution,the data quality,and the multipath correlation of the ground monitoring station are analyzed in detail in this article.And a general method for the composition and deployment of the SBAS ground monitoring station is summarized,which provides a reference for the implementation of SBAS monitoring station construction.