大气折射延迟映射函数的比较  

Comparison of Atmospheric Refraction Delay Mapping Function

作　　者：王纯[1] 张捍卫[1] 

机构地区：[1]河南理工大学测绘学院,河南焦作454003

出　　处：《地理空间信息》2009年第6期85-87,共3页Geospatial Information

基　　金：国家自然科学基金资助项目(40174002);国家杰出青年科学基金资助项目(40125013)

摘　　要：简要综述对流层大气折射延迟的基本概念,对几种常用的连分式的映射函数进行比较,结果表明映射函数模型在低高度角呈现较大的差异性,说明利用映射函数模型对大气折射进行改正有很多局限性。This paper briefly summaried the basic concept of troposphere atmospheric refraction delay, did a comparison to several commonly used continued fraction＇s mapping functions, the result indicates that the models of mapping function have great difference in low elevation angle, it has explanated that there are many limitations to the correction of the atmospheric refraction by using mapping function model.

关 键 词：空间大地测量 折射延迟 映射函数 改正模型 

分 类 号：P228[天文地球—大地测量学与测量工程]