| 不同约束对GPS观测网平差结果的影响 |
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| 引用本文： | 孟国杰,赵承坤,顾国华,郑贵明,牛红叶,许永江.不同约束对GPS观测网平差结果的影响[J].大地测量与地球动力学,2001,21(1):35-41. |
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| 作者姓名： | 孟国杰 赵承坤 顾国华 郑贵明 牛红叶 许永江 |
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| 作者单位： | 1. 中国地震局分析预报中心,
2. 中国地震局第一地形变监测中心, |
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| 基金项目： | 国家重大科技工程“中国地壳运动观测网络”所属项目 |
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| 摘 要： | 对卫星轨道和测站坐标的约束程度设计了 4种方案 ,对中国地壳运动观测网络10 18GPS周的基准站观测数据进行了试验研究。结果显示 :松驰轨道和紧约束 IGS站方案的结果与紧约束轨道和 IGS站方案的结果基本一致 ,认为这与先验坐标的精确度较高有关。其他方案之间存在较大的差别。最后讨论了大尺度 GPS监测网数据处理时参考基准的选择问题 ,认为一般情况下 ,应该使用全球解 H文件 ,把平差结果归算到全球参考框架中
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| 关 键 词： | GPS 数据处理 参考基准 |
| 修稿时间： | 2000年7月18日 |
EFFECT OF DIFFERENT CONSTRAINT TO ADJUSTMENT OF GPS MONITORING NETWORK |
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| Meng Guojie,Zhao Chengkun,Gu Guohua,Zheng Guiming,Niu Hongye,Xu Yongjiang.EFFECT OF DIFFERENT CONSTRAINT TO ADJUSTMENT OF GPS MONITORING NETWORK[J].Journal of Geodesy and Geodynamics,2001,21(1):35-41. |
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| Authors: | Meng Guojie Zhao Chengkun Gu Guohua Zheng Guiming Niu Hongye Xu Yongjiang |
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| Institution: | Meng Guojie 1),Zhao Chengkun 2),Gu Guohua 1),Zheng Guiming 2),Niu Hongye 1) and Xu Yongjiang 1) 1)Center for Analysis and Prediction,CSB,Beijing 100036 2)No.1 Crustal Deformation Monitoring Center,CSB,Tianjing 300180 |
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| Abstract: | On the basis of constraint of to satellite orbit and the coordinates of IGS stations,4 programs are designed to process the data of 1018 GPS week of fiducial stations of Crustal Movement Observation Monitoring Network of China(COMNOC).Three dimension similarity transformation is used to compare the results of 4 programs.It is shown that the program of loose constraint to satellite orbit and tight constraint to coordinates of IGS stations to some extent gets same result as the program of tight constraints to satellite orbit and coordinates of IGS stations and there exist apparent translation and rotation among the other programs.It is thought that this is related to the high precision of a priori coordinates of fiducial stations.In addition,how to select the reference frame in processing GPS data is discussed. |
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| Keywords: | GPS data processing reference frame |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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