Abstract：We use the singular spectrum analysis method to spatial filter with GAMIT/GLOBK processing of high precision CZCORS coordinate time series. To exclude common mode errors of coordinate time series, a maximum likelihood estimation method is used for noise characteristic analysis. The optimal white noise model is “WH”, the optimal colored noise model of the N, U components is “WH+FN”, and the optimal colored noise model of the E component is “WH+FN+RWN”. Employing the optimal colored noise model to estimate the regional CORS sites velocity field, shows a southeast overall movement trend, and the overall displacement value and movement direction is similar to the surrounding IGS stations.
CAO Qi,ZHANG Yingyan,YUE Dongjie et al. Noise Model Establishment and Analysis of CORS Sites
Coordinates Time Series[J]. jgg, 2015, 35(6): 1001-1006.
