On GPS Observation Errors with ANC Principles and Wavelet Denoise Method

In order to derive a relatively noise-free time series from the GPS results,an integrated method based on adaptive noise cancelling principles and wavelet de-noise method is presented.To verify the effectiveness of the method,an experiment is carried out,the results indicate that the adaptive noise canceller is a powerful signal decomposer,which can significantly mitigate multipath effects since multipath tends to exhibit the same pattern between consecutive days;wavelet filter is a suitable tool to separate stochastic noise that cannot be filtered by ANC method form signal.This kind of combination is superior to single filtering method.