Wavelet Solution of Multi-path Effect on GPS Precise Positioning

摘要

Post processing of GPS data is one efficient method to solve the multi-path effect on precise positioning with GPS technique. Wavelet analysis is been developing to be used to detect and remove the multi-path effect. A new method based on the adaptive threshold wavelet analysis is put forward to remove the high-frequency noises of multi-path effect in the paper. Then the high-frequency filtering and low-frequency extracting are integrated to eliminate the multi-path effect. Experimental cases indicate that the wavelet method to detect and remove the multi-path effect on GPS precise positioning is very efficient.