Detection and Repair of Cycle Slips Using Improved TurboEdit Algorithm and Chebyshev Polynomial Method

Based on the characteristics of TurboEdit algorithm for GPS observation data cycle slips detection,a fixed length sliding window fitting model which makes the improvement to Geometry-Free combination method has been designed.A cycle slip repair algorithm which uses least square Chebyshev polynomial fitting method to repair cycle slips is proposed.The experimental results show that the improved TurboEdit algorithm can detect equal-cycle such as one cycle of small cycle slips,big cycle slips and successive small and big cycle slips,The least square Chebyshev polynomial fitting can also repair cycle slips more precisely and thus lays the foundation for subsequent data processing.