The application of wavelet to data pretreatment in GPS baseline solution
Xiong Ying · Engineering of Surveying and Mapping · 2008
The wavelet is used to dispose the GPS observation data.If the GPS phasic observation data can be regarded as time list to analyse,it shows a very lubricous curve.When the cycleslip takes place,the velvet of the curve will be damaged.From the beginning epoch of the cycleslip,the subsequent phasic observation data list takes place equal cycle-slip.According to the principle which wavelet transforms detect signal,it is very effective to detect the cycle slip.This method has obvious function to decrease the scope of searching ambiguity and to improve the validity of the ambiguity,which can improve the precision of the baseline solution.