大地测量与地球动力学2018，Vol.38Issue(5)：510-515,6.DOI:10.14075/j.jgg.2018.05.014
顾及共模误差的四川连续GPS基准站坐标时间序列噪声分析
Noise Analysis of Coordinate Time Series of Sichuan GPS Reference Stations with Common Mode Error
摘要
Abstract
In this paper,GAMIT/GLOBK software is used to deal with the data of 23 consecutive GPS reference stations in Sichuan province during 2010-2015.The coordinate time series of each station is obtained.The stacking method is used for spatial filtering to eliminate the common mode error,and the noise of the filtered GPS station coordinate time series is analyzed by means of spectral index calculation and maximum likelihood estimation.The results show that the optimal noise model of N and U in the coordinate time series of Sichuan GPS fiducial station is WN+FN,and the optimal noise model in E direction is WN +FN+RWN;spatial filtering can reduce flicker noise,and at the same time,some stations show random walk noise;the effect of colored noise should be taken into account when the reference station speed is estimated according to the GPS coordinate time series.关键词
四川连续GPS基准站/时间序列/共模误差/速度场Key words
Sichuan continuous GPS reference station/time series/common mode error/velocity field分类
天文与地球科学引用本文复制引用
刘宗强,党亚民,杨强,张光茹,王健,韩德强..顾及共模误差的四川连续GPS基准站坐标时间序列噪声分析[J].大地测量与地球动力学,2018,38(5):510-515,6.基金项目
国家自然科学基金(41474011).National Natural Science Foundation of China,No.41474011. （41474011）
