CORS stations have high stability,but they are affected by various factors such as crustal movement,which can lead to linear and nonlinear displacements in different directions.Mastering the motion law of the reference station is of great significance for the dynamic maintenance of the coordinate framework.This study used KMCORS data from 2019 to 2021 and data from 8 IGS stations.Through quality a-nalysis,data calculation,and network adjustment of the observation data,the coordinate time series of KMCORS was finally obtained.After re-moving gross errors from the time series,spectral analysis was conducted to determine the linear and periodic changes exhibited by each refer-ence station in the N,E,and U directions,and to obtain the displacement law of the Kunming Continuously Operating Reference Stations.
KMCORSGAMIT/GLOBKquality evaluationcoordinate time seriesfrequency analysis
万方数据
维普
