| ITRF2000与ITRF2005的差异对GNSS数据处理的影响 |
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| 引用本文： | 占伟,杨博,武艳强,刘志广,孟宪纲.ITRF2000与ITRF2005的差异对GNSS数据处理的影响[J].大地测量与地球动力学,2011,31(6):109-112. |
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| 作者姓名： | 占伟 杨博 武艳强 刘志广 孟宪纲 |
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| 作者单位： | 1. 中国地震局第一监测中心,天津,300180
2. 中国地震局地震预测研究所,北京,100036 |
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| 基金项目： | 中国地震局地震行业科研专项 |
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| 摘 要： | 分析ITRF2000和ITRF2005下得到的测站坐标、基线长度、水平速度场的差异.结果表明:经过坐标转换后,测站坐标差异为毫米级,基线差异在1 mm以内；ITRF2000和ITRF2005下水平速度场的差异随研究范围的缩小而减小,大尺度区域的水平速度场差值在1 mm/a以内,方向上存在2°左右的系统差,而对于中等尺度...
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| 关 键 词： | ITRF2000 ITRF2005 GNSS 数据处理 差异 |
EFFECT OF DIFFERENCE BETWEEN ITRF2000 AND ITRF2005 ON GNSS DATA PROCESSING |
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| Zhan Wei,Yang Bo,Wu Yanqiang,Liu Zhiguang,Meng Xiangang.EFFECT OF DIFFERENCE BETWEEN ITRF2000 AND ITRF2005 ON GNSS DATA PROCESSING[J].Journal of Geodesy and Geodynamics,2011,31(6):109-112. |
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| Authors: | Zhan Wei Yang Bo Wu Yanqiang Liu Zhiguang Meng Xiangang |
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| Institution: | 1) 1)First Crust Monitoring and Application Center,CEA,Tianjin 300180 2)Institute of Earthquake Science,CEA,Beijing 100036 |
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| Abstract: | As comparing with the ITRF2000, the ITRF2005 make a lot of improvement on solution generation, datum definition and realization and so on, so there is a certain frame difference between the ITRF2000 and ITRF2005, furthermore, it would affect GNSS data processing. So in this work, the differences of the results including station coordinates, baseline length and horizontal velocity field were analyzed. After transformation, the differences of position are at millimeter level, the differences of baseline length are less than 1mm. The differences of horizontal velocity fields decreases with the reduction of studied area. For large regions, the differences are less than 1mm/a and a systematic difference of about 2 degrees in direction. For medium regions, the differences and direction are not significant. |
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| Keywords: | ITRF2000 ITRF2005 GNSS data processing difference |
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