摘要
在工程实践中需要将GPS所测的大地高转换为工程上所采用的正常高。由于重力数据的缺乏,通用的转换方法为GPS高程拟合法。在实际应用中,一般通过最小二乘的方法进行拟合。然而,在某些情况下,最小二乘的方法并不是最简便的方法。该文介绍一种更为简便的线性内插法。试验证明,线性内插法符合工程上的需要。
In the engineering practice,the geodetic height measured by GPS should be converted to normal height which used in the project.Due to the lack of gravity data,the method of GPS height fitting method is usually be used.In the actual application,the least squares method is used to fitting.However,it is not the easiest method.This paper introduces a more simple linear interpolation method.The experiment proves that the linear interpolation method can meet the needs of the projects.
出处
《勘察科学技术》
2012年第5期52-53,57,共3页
Site Investigation Science and Technology
关键词
线性内插法
GPS高程拟合
最小二乘法
linear interpolation method
GPS height fitting
least squares method
