利用GPS/水准资料建立区域似大地水准面及其精度分析  

Establishment and Precision Analysis of the Regional Quasi-Geoid based on GPS/Leveling Data

作　　者：李勇[1] 郑作亚[1] 

机构地区：[1]山东科技大学地球信息科学与工程学院,山东青岛266510

出　　处：《矿山测量》2007年第3期19-22,共4页Mine Surveying

摘　　要：文中利用某区域C、D级GPS混合网和该网的三等水准测量资料,建立区域似大地水准面,并利用部分已知实测点进行比较,由此表明:在比较平坦地区,利用GPS/水准资料建立的区域似大地水准面模型在一定范围内可以代替三等几何水准测量。Based on the C-and D-grade GPS hybrid network in a certain area and the 3-grade leveling survey data of this network,a regional quasi-geoid is established in the paper,compared to part of given actually-measured points,which could substitute the 3-grade geometry leveling survey to some degree in some relatively flat regions.

关 键 词：GPS/水准资料 GPS高程 几何水准测量 高程异常 似大地水准面 

分 类 号：P228.4[天文地球—大地测量学与测量工程]