基于曲面拟合的GPS/水准实验研究

The Experimental Study on Surface Fitting on GPS/Leveling

在缺乏重力资料的情况下,应用几何方法进行高程异常拟合计算是一种常用方法。本文首先介绍了曲面拟合原理,总结精度评定方法;然后设计了两种实验方案,对模型的适应性进行研究。实验结果表明:根据测区地形、控制点分布情况选择合适的模型进行GPS/水准拟合可满足一般性工程需要。

In the case of the lack of gravity data,the application of geometric method to the calculation of height anomaly fitting is a common method.Firstly,the paper introduces the principle of surface fitting and precision evaluation.Then the paper designs two experimental programs to study the model adaptability.The results show that it could fulfill the general engineering requirements by choosing the appropriate model for GPS/leveling fitting based on the topography and the distribution of control points.