Research on algorithm of cycle slips detection andrecovery for GPS carrier phase
GPS载波相位周跳探测与修复方法研究*

This paper analyzed the characteristics of cycle slips, and presented a novel method. Firstly, carried out the wavelet transform and then determined the location of the cycle slip by ascertaining could regarde the point of modulus maximal value of the wavelet coefficients, since regarded the cycle slip as the singular point of the signal. Then proposed a compound prediction model for carrier phase measurements based on time series analysis theory, and estimated the value of carrier phase at the cycle slip epoch by this model. Determine the number of cycle slip through comparing the difference between the predicted and actual value of carrier phase at the cycle slip epoch. Finally, presented test results to demonstrate the feasibility and validity of the method.