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Title:: The Determination and Analysis of GPS Time Series Common Mode Error in the North China Region

作者:: 常金龙¹; 2; 甘卫军³; 梁诗明³; 张克亮³; (1.黑龙江省地震局,黑龙江哈尔滨 150090; 2.黑龙江省鹤岗地震台,黑龙江鹤岗 154101; 3.中国地震局地质研究所地震动力学国家重点实验室,北京 100029)

Author(s):: CHANG Jinlong¹; 2; GAN Weijun³; LIANG Shiming³; ZHANG Keliang³; (1.Heilongjiang Earthquake Agency,Harbin 150090,Heilongjiang,China)(2.Hegang Seismic Station of Heilongjiang Provice,Hegang 154101,Heilongjiang,China)(3.State Key Laboratory of Earthquake Dynamics,Institute of Geology,China Earthquake Administration,Beiji

摘要:: 通过计算GPS时间序列共模误差,对大华北地区(华北和东北)不同尺度的共模误差进行分析和讨论,结果表明:计算共模误差时可采用Stacking与 PCA方法相结合的方法,空间上需对测站进行细致挑选,区域面积在覆盖测站的条件下应尽可能小; 扣除随机噪声试验说明并非用任意噪声序列都能起到共模误差滤波的作用; 东北大尺度区域含有较多的框架误差成份,京津冀小尺度区域含有的共模误差成分比东北大尺度区域更多。

Abstract:: Through computing GPS time series Common Mode Error(CME),we analyze and discuss the CME of different scales in North China region.The results show that the station should be carefully selected when calculating the CME.The area should be as small as possible under the conditions of meeting the requirements of the full coverage of the stations.The method of Stacking and PCA can be used in the calculation method.Deducting the random noise test shows that it is not possible to use any noise sequence to play the role of CME.Large scale regions contain more frame error components.The small scale region of Jingjinji contains more CME components than the northeast large scale region.