SDCORS系统在布设D、E级GPS控制网中的应用

Application of SDCORS system to layout of D and E grade GPS control network

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。

The high-precision coordinates of reference station can be proposed as the starting points in the layout 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 SDCORS 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.