摘要
介绍了对流层延迟的性质及常用GPS随机软件中对该项误差的处理方式,讨论了常用的对流层延迟处理手段,通过对实例数据的分析比较,说明对于某些工程测量项目,采用GPS随机软件的默认设置,仅仅依靠差分仍不能消除残余对流层延迟对高程精度的影响,必须认真处理对流层延迟误差。
The property of troposphere refraction and the corresponding options in some GPS software are introduced. And then the methods to reduce the influence of troposphere refraction on short baseline are discussed. The result of a typical engineering survey example with GPS indicates that the residual troposphere delay corrupts the quality of baseline especially of station height, so it must be considered seriously.
出处
《全球定位系统》
2007年第6期18-20,25,共4页
Gnss World of China
基金
测绘学院院课题Y0704资助
关键词
GPS
对流层延迟
改正模型
参数估计
工程测量
GPS
troposphere delay
correction model
parameter estimation
engineering survey
