基于共性误差的CORS站坐标时间序列分析  

The Analysis of Coordinate Time Series of CORS Based on Common Mode Errors

作　　者：吕成亮[1] 张胜凯[2] 沈飞 鄂栋臣[2] 

机构地区：[1]天津市测绘院,天津市300381 [2]武汉大学中国南极测绘研究中心,武汉市430079 [3]江苏北斗卫星应用产业研究院有限公司,南京市210032

出　　处：《大地测量与地球动力学》2016年第1期16-20,共5页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(41176173);国家重大科学研究计划(2012CB957701,2013CBA01804)~~

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。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.

关 键 词：区域叠加滤波 时间序列 噪声模型 

分 类 号：P228.4[天文地球—大地测量学与测量工程]