摘要
以目前高程转换中常用的GPS水准方法为研究对象,简述了GPS水准高程拟合的原理。并结合工程实例进行实验,分析比较了采用二次曲面模型、多面函数模型拟合高程异常所能达到的精度以及可能影响拟合精度的其它因素,得到一些有益的结论,同时也验证了采用GPS水准法进行高程转换在实际工程中的可行性。
This paper takes GPS leveling in elevation transforming as study object, introduces the principle of elevation translation. Combining a practical project,it analyses and compares the accuracy that the conicoid model,pelyhedral function model can attain and some other factors influenced the accuracy. Grounding on these, some useful conclusions are achieved, and also the results are presented to demonstrate the feasibility and validity of the GPS leveling method.
出处
《港口科技》
2008年第5期23-26,共4页
Port Science & Technology
关键词
GPS水准
高程拟合
高程异常
正常高
GPS leveling
height draughting
abnormal elevation
ordinary elevation
