摘要
讨论了GPS单历元伪距单点定位中的电离层、对流层的改正模型,在此基础上,基于GPSTk库,首先利用随机选择的12个IGS站提供的观测和导航数据进行了只改正电离层模型、只改正对流层模型、两者均改正模型、两者均不改正模型4种模式的单历元解算,然后采用高频率(20 Hz)动态数据同样进行了4种模式的解算。最后实验数据解算结果表明:无论是静态单点定位还是动态单点定位,电离层改正模型和对流层模型对提高定位精度都起着重要的作用。
The Ionosphere and Troposphere corrected model has been discussed with the single -frequency data in one epoch. First using the observation and navigation data of twelve IGS stations randomly selected provided, there were four modes single - epoch calculation ： only to correct the ionosphere model, only to correct the troposphere model ＇ both to correct model and both of which are not corrected model, and then gave a calculation about the high -frequency kinemat- ic data（20Hz）and finally concluded that no matter it is static point positioning or kinematic point positioning, the correc- tion model of the ionosphere and troposphere model plays an important role to improve the positioning accuracy which provides some reference value to select the empirical model in real -time positioning.
出处
《城市勘测》
2013年第1期100-103,共4页
Urban Geotechnical Investigation & Surveying
