The detection and correction of cycle-slip based on wavelet transform
HU Wu-sheng · Engineering of Surveying and Mapping · 2009
The detection and correction of cycle-slip is always the key issue in GPS positioning.Cycle-slip is detected by using wavelet transform based on the data of phase reducing false distance in this paper.Firstly,the general method of detection of cycle-slip by wavelet transform is introduced;then,an improved method based on the general one is proposed.It can detect the cycle-slip and correct it directly,even several cycle-slips;at the same time,it can effectively overcome the general method's shortcoming of incorrect cycle-slip detecting.