CORS实时正常高服务方法研究

Research on normal height service method of grid CORS

针对现有连续运行参考站(CORS)系统无法在保证数据安全的前提下为用户实时提供正常高服务的问题,提出了一种基于格网的CORS正常高服务方法.通过对传统虚拟参考站(VRS)技术的数据生成及播发模式进行了改造,采用格网划分的方式,生成格网虚拟观测数据,并对格网虚拟观测数据增加高程异常改正,从而实现实时正常高测量.该方法在不降低用户精度的前提下,为用户提供实时正常高测量成果,能够提升CORS系统的服务能力,可以为其他省市CORS系统的建设提供参考.

In this paper,a method of continuously operating reference station(CORS)normal height service based on grid is proposed.By modifying the data generation and broadcast mode of the traditional virtual reference station technology,the grid virtual observation data is generated through the way of grid division,and the elevation anomaly correction is added to the grid virtual observation data,so as to realize real-time normal height measurement.The method provides users with real-time normal height measurement results without reducing their accuracy,which can enhance the service capability of the CORS system and can provide reference for the construction of CORS systems in other provinces and municipalities.