A New Method for Cycle-Slip Detection and Correction in GPS Carrier Phase
TENG Yun-long1,2,SHI Yi-bing1,GUO Cheng-jun2
1. School of Automation Engineering, University of Electronic Science and Technology of China,Chengdu,Sichuan 610504, China
2. Research Institute of Electronic Science and Technology, University of Electronic Science and Technology of China,Chengdu,Sichuan 610504, China
Abstract：Based on the characteristics of cycle-slip, it is regarded as the fault of GPS carrier phase observations, and then how to detect it is considered as the problem of fault feature extraction. According to these analyses, a new algorithm for detecting and correcting cycle-slip is presented. The fourth difference series of carrier phase observations are calculated. Then, the Huang-Hilbert transform is carried out to the difference series, and the location of cycle-slip can be detected by ascertaining the point of modulus maximal value of the high frequency coefficients. Finally, the forecasted model of carrier phase observations on the basis of RBF neural network is established. The number of cycle-slip can be determined by comparing the difference between the forecasted and actual values. Experimental results are presented to demonstrate the feasibility and validity of the method.
滕云龙,师奕兵,郭承军. 一种新的GPS载波相位周跳探测与修复方法[J]. 计量学报, 2011, 32(3): 279-284.
TENG Yun-long,SHI Yi-bing,GUO Cheng-jun. A New Method for Cycle-Slip Detection and Correction in GPS Carrier Phase. Acta Metrologica Sinica, 2011, 32(3): 279-284.
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2011, Vol. 32 
