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布尔莎模型在GPS时间序列融合中的应用
王紫燕1, 林树1, 武艳强2, 占伟3, 丁晓光4
1.福建省地震局,福州市华鸿路7号350003;2.中国地震局地震预测研究所,北京100036;3.中国地震局第一监测中心,天津300180;4.陕西省地震局,西安710068
摘要:
利用"中国地壳运动观测网络"基准网与全球IGS站的公共站点,采用布尔莎模型求取坐标转换7参数,将地壳观测网络工程基准站点位时间序列与全球解进行绑定。结果显示,转换得到的时间序列N、E向中误差约为2、3mm,与直接融合得到的时间序列的单天误差水平相当,转换得到的站间大地线误差大部分在6mm内,表明该转换方法是可行的。
关键词:  GPS时间序列  融合  布尔莎模型  
DOI:
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基金项目:2012年震情跟踪合同制任务(2012020205)资助
The application of the Bursa model in the method of integrate GPS time series
Wang Ziyan1, Lin Shu1, Wu Yanqiang2, Zhan Wei3, Ding Xiaoguang4
1.Earthquake Administration of Fujian Province, Fuzhou 350003, China;2.Institute of Earthquake Science, Beijing 100036, China;3.First Crustal Monitoring and Application Center, Tianjin 500180, China;4.Earthquake Administration of Shaanxi Province, Xi'an 710068, China
Abstract:
The paper first introduces in detail the combination method with the Brusa model to integrate several regional time series to derive a unified global time series. Then an example from CMONOC (Crustal Movement Observation Network of China) is taken to test if the combination method is feasible. The precision of the integrated time series with the combination method is below 2mm (North) , 3mm (East) , which is the same as the resuhs from the direct integration of the time series. The precision of the baseline is below 6mm; which proves that the combination method can be used to integrate several regional time series to derive a unified global time series.
Key words:  GPS time series  Integrate  Brusa model