| 在小区域内利用EGM2008重力场模型进行GPS高程转换的应用分析 |
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| 引用本文： | 王建忠,蒋新华,张广兴.在小区域内利用EGM2008重力场模型进行GPS高程转换的应用分析[J].北京测绘,2013(1):79-82. |
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| 作者姓名： | 王建忠 蒋新华 张广兴 |
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| 作者单位： | 河北省地矿局秦皇岛矿产水文工程地质大队,河北秦皇岛,066001;河北省地矿局秦皇岛矿产水文工程地质大队,河北秦皇岛,066001;河北省地矿局秦皇岛矿产水文工程地质大队,河北秦皇岛,066001 |
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| 摘 要： | 简要介绍了EGM2008全球重力场模型,以及利用EGM2008模型计算地面点高程异常的原理,指出了在已知GPS控制网内一点正常高的情况下,如何应用该模型通过计算高程异常进而推算网内各点正常高的方法。结合在冀东某地山区和海滨的两个实验区数据,对使用上述GPS高程转换方法所能达到的精度进行了分析,结论认为在小区域内可以达到四等水准测量精度。
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| 关 键 词： | EGM2008全球重力场模型 高程异常 小区域 GPS高程转换 精度分析 |
Analysis on Application of EGM2008 on GPS Height Transformation in the Small Area |
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| WANG Jian-zhong
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JIANG Xin-hua
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ZHANG Guang-xing.Analysis on Application of EGM2008 on GPS Height Transformation in the Small Area[J].Beijing Surveying and Mapping,2013(1):79-82. |
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| Authors: | WANG Jian-zhong JIANG Xin-hua ZHANG Guang-xing |
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| Institution: | (Qinhuangdao Team of Mineral and Hydrogeology and Engineering Geology, Hebei Bureau of Geoexploration,Qinhuangdao Heibei 066001,China) |
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| Abstract: | Introduced to use EGM2008 model to calculate the elevation of the ground point exception principle.Pointed out that when an elevation known of GPS control network,How to apply EGM2008 through calculating height anomaly and prediction network the method of normal height.Use of jidong somewhere mountainous area and the beach two experimental plot data,to use the GPS height conversion method can achieve accuracy are analyzed,the conclusion is that in the small area can achieve fourth-order leveling precision. |
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| Keywords: | EGM2008 height anomaly small area GPS height transformation accuracy analysis |
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