基于卫星导航基准站网的海量实时解算与服务算法

Massive real-time positioning and service algorithms based on satellite navigation reference station network

大地测量基准作为现代基础测绘的重要组成部分,其建立和维持的技术手段、工具及理论方法随着社会的发展及科学的进步发生了巨大的变化。上海市卫星导航定位基准服务系统(SHCORS)通过格网化VRS技术,采用“发布七参数”的作业模式,实现了面向海量用户服务,为上海地区提供了高精度、稳定的位置服务。本文对SHCORS系统构建中的关键技术进行了探讨与研究,并对其实时定位精度进行了测试。结果表明,SHCORS系统的精度满足实际应用需求。

As an important part of modern basic surveying and mapping,its technical means,tools and theoretical methods established and maintained by geodetic datum have changed greatly with the development of society and the progress of science.The Shanghai CORS system for satellite navigation positioning provides high-precision and stable location services for the Shanghai region through the use of grid-based virtual reference station(VRS)technology and the“seven-parameter release”operation mode serves a massive number of users.In this paper,the key technologies used in the construction of the SHCORS system are explored and studied,and its real-time positioning accuracy is tested.The results show that the SHCORS system s accuracy meets practical application requirements.