几种常用似大地水准面插值方法精度分析  

Several Typical Interpolation Method and its Precision Analysis Based on Quasi-Geoid Model

作　　者：徐平 杜向锋[2] 

机构地区：[1]广东省核工业地质局测绘院,广东广州510800 [2]广东工贸职业技术学院,广东广州510510

出　　处：《全球定位系统》2014年第2期79-81,86,共4页Gnss World of China

摘　　要：详细介绍了几种常用的似大地水准面插值方法的数学模型,并根据这些模型编写了相应的模型内插软件,利用该内插软件提供的内插方法及某似大地水准面模型,对一些GPS/水准数据进行了高程内插计算,通过对内插结果的分析获得了一些有益的结论。This article details several typical mathematical models of the interpolation methods of quasi-geoid,and compiles the corresponding model interpolation software on the basis of these models.Meanwhile,by using the interpolation methods provided by the inter-polation software and a certain quasi-geoid model,some GPS/leveling data are calculated by using elevation interpolation.Through the analysis of the interpolation results,some useful conclusions are drawn.

关 键 词：GPS高程转换 高程异常内插 似大地水准面模型 

分 类 号：P228.4[天文地球—大地测量学与测量工程]