利用先验几何信息改善整周模糊度解算

The Improvement of GPS Ambiguity Resolution by Prior Geometry Information

提出利用先验信息改善载波相位整周模糊度计算的三种方法 :1 )几何约束法 ;2 )伪观测值法 ;3)贝叶斯方法。介绍了几何约束法原理及确定高程制约值的方法 ;伪观测值法的原理及计算方法 ;贝叶斯估计的原理及计算方法。

Three methods to improve the resolution of GPS ambiguity by using prior information are proposed:1)method of geometry constraints;2)method of quasi observation;3)method of Bayesian solution. After presenting the principle of the method one, this paper gives both the method to determine the threshold for geometry validation and the principles of the method of quasi observation and Bayesian solution.