Resolving Static Offset from High-rate GPS Data by Wavelet Decomposition-Reconstruction Algorithm

This paper focuses on the research of resolving static offset from high-rate GPS data by wavelet decomposition-reconstruction algorithm. After processing and analyzing the high-rate GPS data of El Mayor-Cucapah earthquake and Tohuko-Oki earthquake in precise point positioning (PPP) mode, we find that the short-period waveforms captured by high-rate GPS data processed in PPP mode are comparable with the twiceintegrated strong-motion records and the former one also could retain the static offset signal. Static offset resolved by decomposition-reconstruction algorithm from the high-rate GPS data is helpful to separatethe static offset induced by main shock, strong aftershock and the post-seismic deformation.