GPS高程拟合替代三、四等水准测量的可行性研究  

Feasibility study of GPS height fitting instead of third and fourth leveling measurement

作　　者：郭杨 Guo Yang(Land Surveying,Planning and Design Institute of Shaanxi Provincial Land Engineering Construction Group,Xi'an 710075,China)

机构地区：[1]陕西地建土地勘测规划设计院有限责任公司,陕西西安710075

出　　处：《矿山测量》2018年第6期110-112,116,共4页Mine Surveying

摘　　要：为解决GPS大地高使用不便的问题,文中介绍了几种常用的GPS高程拟合模型,通过实例计算获得不同模型的解算精度,然后按照三、四等水准测量的限差要求分析拟合结果,研究替代的可行性。研究表明,在一定条件下,GPS高程拟合可以替代三、四等水准测量。In order to solve the problem of inconvenient use of GPS geodetic height,in this paper several kinds of commonly used GPS height fitting model were introduced,the accuracy of different models was obtained through the examples calculation,and then the fitting results were analyzed according to the limit requirement of third and fourth leveling measurement,and the feasibility of substitution was studied. The research showed that GPS height fitting could replace the third and fourth leveling measurement under certain conditions.

关 键 词：大地高 高程拟合 水准测量 可行性 

分 类 号：P258[天文地球—测绘科学与技术]