GPS测量中天顶干延迟的计算方法的研究

Research on Method of Calculating Zenith Dry Delay in GPS Measurement

大气可降水份的估计是地基GPS气象学的一个主要研究方向。本文介绍了大气折射对GPS测量的影响,简介了两种常用的天顶干延迟分量模型——Saastamoinen模型和Hopfield模型和各种模型的特点。通过对北京、乌鲁木齐、拉萨3个IGS站的气象数据对这两个的天顶延迟干分量模型进行了分析总结。

Atmospheric precipitation were estimated to be the foundation of one of the main GPS meteorology research.This paper introduces the measurement of atmospheric refra-ction on the impact of GPS,outlined two kinds of commonly used dry zenith delay component model Saastamoinen model and the Hopfield model and the characteristics of various models and the scope of application.Of Beijing,Urumqi,Lhasa three IGS stations preliminary meteorological data processing and analysis,compared the more commonly used dry zenith delay component model.