摘要
介绍了对流层大气折射对GPS信号的影响及修正方法 ,着重讨论了各种天顶延迟计算方法和投影函数模型 ;通过试算 ,并分析比较这些模型的差异 ,得出了一些有益的结果。
The tropospheric propagation delay is one of the basic factors of positioning error in GPS surveying. In this paper, firstly, attribute of refraction of atmosphere in troposphere and its effects on radio waves and the formulas to modify it were introduced. Then some models of zenith delay and projection functions were discussed. Finally, some beneficial results were deduced by analyzing differences among these models.
出处
《测绘学院学报》
北大核心
2001年第3期182-185,共4页
Journal of Institute of Surveying and Mapping
