中文摘要：

以某省9个CORS站点为例,采用区域叠加滤波法提取CORS站坐标时间序列中的共性误差;然后,计算剔除共性误差前后TEST站坐标时间序列的周期功率谱图,分析共性误差对坐标时间序列的影响;最后,利用最大似然法确定顾及共性误差的CORS站坐标时间序列噪声模型。结果表明,CORS站坐标时间序列的3个坐标分量具有不同的噪声性质。

英文摘要：

Common mode error has an important influence on the coordinate time series analysis of con- tinuous GPS tracking stations. A regional stacking method is used to extract common mode errors from coordinate time series of 9 CORS stations. The cycle power spectrum of coordinate time series in TEST is calculated before and after the deletion of common mode error, and the influences of common mode error in coordinate time series are analyzed. Finally, we use the maximum likelihood method to de- termine the coordinate time series noise models of CORS stations, taking common mode error into account. The results show that three components of coordinate time series have different noise models.