SDCORS系统在布设D、E级GPS控制网中的应用

摘要

The high-precision coordinates of reference station can be proposed as the starting points in the lay-out of static GPS control network when the traditional observation model is difficult to achieve the expected accuracy in GPS controlling points observation.Taken the construction of D and E grade GPS control network in Linyi City, Shandong Province as an example,the authors introduce the method of setting up GPS control network based on SD-CORS point observation mode and discuss the accuracy of the control network.It is concluded that the application of point observation mode based on SDCORS in D and E grade GPS control network is completely feasible.%当使用传统的观测模式观测GPS控制点较难达到预期的精度要求时，可以利用参考站高精度的坐标作为静态GPS网的起算点进行控制网布设。以山东省临沂市D、E级GPS控制网建立工程为例，介绍了使用基于SDCORS点观测模式布设GPS平面控制网的方法，并对控制网的精度进行了分析。得出基于SDCORS的点观测模式在D、E级GPS控制网的布设中应用是完全可行的结论。