| 城市坐标系GPS点的恢复测量实践 |
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| 引用本文： | 刘枭华,姚正学,曹春晖,王健平.城市坐标系GPS点的恢复测量实践[J].甘肃科学学报,2009,21(3):120-122. |
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| 作者姓名： | 刘枭华 姚正学 曹春晖 王健平 |
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| 作者单位： | 1. 甘肃省科学院,地质自然灾害防治研究所,甘肃,兰州,730000
2. 黄河水利委员会,上游水文水资源局,甘肃,兰州,730000 |
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| 基金项目： | 全国第二次土地调查项目 |
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| 摘 要： | 介绍了城市坐标系统GPS点位遭到破坏后的恢复方法．首先将不同时期、不同品牌GPS接收机采集的数据纳入网中，然后进行数据检核、基线处理、平差解算，可获得被破坏GPS点的数据．通过对比1980西安坐标系、1954北京坐标系、城市坐标系统的成果，可以看出补测后的坐标与原坐标非常接近，有相同的精度，说明GPS点恢复方法是可行的．
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| 关 键 词： | 城市坐标系统 GPS点 RINEX数据 数据转换 |
Restoration of the GPS Point in City Grid |
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| LIU Xiao-hua,YAO Zheng-xue,CAO Chun-hui,Wang Jian-ping.Restoration of the GPS Point in City Grid[J].Journal of Gansu Sciences,2009,21(3):120-122. |
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| Authors: | LIU Xiao-hua YAO Zheng-xue CAO Chun-hui Wang Jian-ping |
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| Institution: | LIU Xiao-hua1,YAO Zheng-xue1,CAO Chun-hui2,Wang Jian-ping1(1.Geological Hazards Prevention,Gansu Academy of Sciences,Lanzhou 730000,China,2.Upper Hydrological and Water Resources Bureau,Yellow RiverConservancy Commission,China) |
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| Abstract: | Introduced to a method restore the damaged GPS point in city grid. First, the data of different period and different GPS receiver were inputted in one net system, and then by data checking, base line processing, and level difference calculating, we got the data of damaged GPS point. By contrasting with the result of 1980 xiran coordinate system and 1954 Beijing coordinate system, we found that restored coordi- nate has the same level precision with the source coordinate, the methad of restoration of GPS point that it is feasible. |
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| Keywords: | city grid GPS point RINEX data data transformation |
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