Abstract:In this paper, we conduct analysis of signal amplitude-frequency characteristics of strong seismic waves. Based on this analysis, sinusoidal strong seismic waves are generated by a GNSS signal simulator. Moreover, the performance of high-rate (50 Hz) GNSS observations collected by two GNSS receivers (Trimble Net-R9 and NovAtel OEM628) are evaluated from the aspects of raw carrier phase observations and positioning results, respectively. The results show a significant error in both carrier phase and positioning results, in the case of high-frequency motion. Furthermore, the measuring accuracy of two GNSS receivers, especially the Trimble Net-R9, deteriorates with the increase of the frequency of sinusoidal seismic wave.