基于数学曲面法的GPS水准拟合的研究与实现  

The Research and Realizes of GPS Level Height Fitting based on Mathematics Surface

作　　者：邢锐[1] 王猛 

机构地区：[1]辽宁工程技术大学研究生学院,辽宁阜新123000 [2]辽宁省阜新市发展改革委员会,辽宁阜新123000

出　　处：《中国西部科技》2009年第18期52-53,共2页Science and Technology of West China

摘　　要：GPS在测量领域的应用给传统测量带来了历史性变革,但GPS三维坐标中的Z坐标,即大地高未能在生产实际中发挥应有的作用,使得GPS测量在确定平面坐标之后还要在测站上进行几何水准测量。如何能有效利用GPS的高程信息,把大地高转换成正常高,直接为测绘生产服务,实现GPS观测时能同时获得实用的三维坐标,值得研究。针对目前GPS水准高程研究的现状,本文引入数学曲面拟合法,并结合实例分析,总结了该拟合模型的优缺点,并给出了一些合理建议。Application of GPS in survey area takes historic transformation,but the coordinates called Z of 3 dimension coordinates,this is geodetic elevation,can＇t take effect in practice,and must carry on geometry leveling at survey station after making certain plane coordinates.It is worth studying how to make effectively use of GPS elevation information to transform geodetic elevation into normal height,directly service production,realizes acquirement of applied GPS 3 dimension coordinates.According to current GPS level elevation study situation,the article mainly discusses the geometric model analysis of surface region,and combines theory with practice, and sums up disadvantage and advantage, then gives some reasonable suggestion.

关 键 词：大地高 正常高 GPS水准高程 曲面拟合 

分 类 号：P224[天文地球—大地测量学与测量工程] TU198.6[天文地球—测绘科学与技术]