GPS短基线整周模糊度的直接解法

Direct Calculation of Ambiguity Resolution in GPS Short Baseline

摘要: 提出了在位移值较大的情况下(0.7 m),通过多种载波相位组合,解算短基线GPS整周模糊度的方法。导出了在解算过程中保证L1和L2载波的整周模糊度N1和N2为整数的条件,从而将DC(direct calcu-lation)算法1不仅推广到大变形的情况,而且推广到短基线GPS整周模糊度的解算,解决了快速准确解算短基线GPS整周模糊度的问题。

Abstract: A new method that calculates ambiguities in GPS short-baseline through the combination with different carrier phase observations when the deformation is relatively large(0.7 m).A condition that should be satisfied to make sure that the ambiguities of L1 carrier phase and L2 carrier phase are integer,is also drived.The DC algorithm proposed in the reference \ can not only be used to large deformation,but also to the ambiguity resolution in GPS short baseline.Furthermore,the difficulty of the quickness and effectiveness of ambiguity resolution in GPS short baseline,is solved.