Detection and Analysis of Velocity and Amplitude Changes in GNSS Coordinate Series

Abstract:

A method, global navigation satellite system(GNSS), is proposed for detecting velocity and amplitude changes based on the principal of binary tree for searching the most possible change epochs and testing the velocity and amplitude changes. Then the change epochs are tested by F test statistics. The proposed method verified with simulation data is applied to the analysis of the vertical coordinate time series of 5 base stations in crustal movement observation network of China. The results show that the proposed method has the higher fitting accuracy and the better reflection of the observation data.