几种不同GPS高程拟合方案的比较

Comparison of Several Different Methods on the Simulation of GPS Height

在GPS高程测量中,通过应用多面函数与二元多项式拟合模型的对比,说明仅用内、外符合精度来评估拟合高程的精度,仍存在一定的风险。结合实例指出,GPS水准点在项目区分布的重要性及应注意的事项。

Comparing with polyhedral function and bivariate polynomial multi-fitting models in GPS height measurement, the results illustrated that the accuracy of fitting height, which estimated only by according internal and external accuracy, still existed certain risks. This paper also pointed out the importance of GPS leveling points in the distribution of the project area, and the matters which need attention.