| 基于EGM2008和Kriging的GPS高程拟合算法 |
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| 引用本文： | 冯艳顺,魏磊,张跃飞,康宗道.基于EGM2008和Kriging的GPS高程拟合算法[J].测绘与空间地理信息,2013(12):196-198. |
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| 作者姓名： | 冯艳顺 魏磊 张跃飞 康宗道 |
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| 作者单位： | 河南省地质测绘总院,河南郑州450006 |
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| 摘 要： | 简述了GPS高程拟合的原理，采用移去一恢复法，结合最新的高精度地球重力场模型EGM2008，运用地统计学中的泛克里格方法（Kriging），充分考虑先验统计信息以及各点的空间相关性，在无偏性和最小方差原则下，准确获取了未知点的高程异常。经实例验证：该方法具有模型严密、可靠性好、拟合精度高等优点，适用于地形复杂地区。
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| 关 键 词： | EGM2008 泛克里格 半变异函数 GPS高程 |
GPS Elevation Fitting Method Based on Kriging and EGM2008 |
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| Institution: | FENG Yan- shun, WEI Lei, ZHANG Yue - fei, KANG Zong - dao (Henan Provincial Geological Surveying and Mapping Institute, Zhengzhou 450006, China) |
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| Abstract: | Outlines the principles of GPS elevation fitting, using the remove - restore method, combined with the latest high - preci- sion models EGM2008 Earth gravity field, the use of universal Kriging methods in geo - statistical （Kriging） , fully taking into account a prior statistical information, as well as the spatial correlation, under the principles of unbiased and minimum varianee and accurately get the unknown points of height anomaly. Example： model method that has tight fitting, good reliability, high precision, suitable for complicated topography area. |
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| Keywords: | EGM2008 Kriging semi - variograms GPS |
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