GNSS定位测量高程拟合方法的研究与实践  

Research and Practice of Elevation Fitting Method for GNSS Positioning Measurement

作　　者：赵飞燕[1] 杨文华[1] ZHAO Feiyan

机构地区：[1]杨凌职业技术学院,陕西杨凌712100

出　　处：《地理空间信息》2021年第8期113-114,117,I0007,共4页Geospatial Information

基　　金：杨凌职业技术学院2018年人文社科类(教改)研究基金资助项目(GJ1835);杨凌职业技术学院2018年自然科学研究基金资助项目(A2017020)。

摘　　要：通过介绍GNSS高程拟合的原理,介绍了固定差改正法、曲线拟合法、曲面拟合法3种高程拟合的方法,以具体的工程测量任务为实例,采用GNSS固定差改正高程拟合法与四等水准测量的两种方法,解算出测区内点的高程,并对点位高程坐标进行了精度分析,得到了可靠的结论,为测量工作提供参考依据。Through the introduction of the principle of GNSS elevation fitting,we introduced the fixed correction method,curve fitting and surface fitting three elevation fitting methods at first.Then,taking the measuring task to specific project for example,we used GNSS fixed correction elevation fitting and fourth level measurement method to calculate the elevations of points in measurement area.Finally,we analyzed the accuracy of the point elevation coordinate,and obtained a reliable conclusion,which could provide a reference basis for measurement work.

关 键 词：GNSS高程拟合 正常高 大地高 

分 类 号：P228[天文地球—大地测量学与测量工程]