| IGS基准站的选择对GPS定位精度的影响 |
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| 引用本文： | 翟万林,朱建华,陈春涛,闫龙浩.IGS基准站的选择对GPS定位精度的影响[J].海洋测绘,2014(4):17-19. |
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| 作者姓名： | 翟万林 朱建华 陈春涛 闫龙浩 |
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| 作者单位： | 国家海洋技术中心,天津300112 |
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| 基金项目： | 国家海洋局青年海洋科学基金（2013431）. |
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| 摘 要： | 使用GAMIT软件对天津于桥水库和威海石岛两次GPS试验数据进行处理,在处理过程中,分别选择了临近的4~30个IGS站的27种情况进行计算,并对各种情况得出的结果从基线向量、测站坐标和IGS站的南北半球分布等三个方面进行了比较,得出了以下结论:使用26个以上IGS基准站进行数据处理,可以达到卫星高度计现场定标检验精度。
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| 关 键 词： | 卫星高度计 GPS 基线 IGS站 |
Impact of IGS Station Selection on GPS Positioning Precision |
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| ZHAI Wanlin,ZHU Jianhu,CHEN Chuntao,YAN Longhao.Impact of IGS Station Selection on GPS Positioning Precision[J].Hydrographic Surveying and Charting,2014(4):17-19. |
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| Authors: | ZHAI Wanlin ZHU Jianhu CHEN Chuntao YAN Longhao |
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| Institution: | ( National Ocean Technology Center, Tianjin 300112, China) |
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| Abstract: | It was necessary to high precisionly process the GPS data in the process of calibration and validation of satellite altimeters, and the elevation precision was needed to reach mm level. But the main problem was the selection of IGS stations, which was related to the precision of calibration and validation. In this paper, we processed the test data in Tianjin and Weihai using GAMIT software. In the process, we calculated the data from the adjacent 4 - 30 IGS stations, compared the results in the aspects of baselines, coordination and the distribution of IGS stations in the south and north hemisphere. The results showed that we needed to choose more than 26 IGS stations in order to reach the precision of calibration and validation. |
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| Keywords: | Satellite altimeter GPS baseline IGS stations |
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