某测区GPS水准拟合算法的研究及程序实现

摘要

First introduce the principle of GPS leveling height fitting and methods, and the one curved surface fitting, incomplete quadric surface fitting and quadric surface fitting elevation model is introduced in detail, and the least squares principle to carry on the parameter estimation, the three kinds of model with accuracy assessment and write your own c + + program for reliability validation.This article selects the engineering of the contrast between the measurement data to evaluate accuracy and model, and will conduct the analysis of two schemes and draw the conclusion.%首先介绍了GPS水准高程的拟合原理及方法,并对其一次曲面拟合、不完全二次曲面拟合以及二次曲面拟合高程模型进行详细的介绍;然后用最小二乘原理进行参数估计,将其3种模型用自己编写的C语言程序进行精度评定及可靠性的验证;最后选取了工程中的测量数据进行精度评定和模型之间的对比,并将两种方案进行分析进而得出结论.