几种周跳探测和修复方法的比较研究

Comparative Study of Several Cycle-slip Detection and Repair Methods

高精度GPS定位中周跳的探测与修复的地位举足轻重,并且周跳与整周模糊度的解算及GPS观测精度有着直接而密切的关系。本文对国内外几种常用的GPS周跳探测与修复理论与算法进行介绍,并结合实例对其效果进行分析得出,M-W组合法可以探测出小周跳。采用何种探测与修复周跳的方法能够提高效率和可靠性需要根据具体情况而定,也可以采用上述几种方法联合处理周跳。

Cycle-slip detection and repair plays an important role in the high precision GPS positioning, and it has direct and close relationship with integer ambiguity resolution and GPS observation accuracy. In this paper, some theories and algorithms of GPS cycle-slip detection and repair at home and abroad are introduced and the effects are analyzed with examples. The results show that the M-W combination method can detect small cycle slip, the selection of cycle-slip detection and repair methods depends on the specific circumstances, and these methods can also be combined.