| 插值和拟合方法在高程异常模型建立中的应用 |
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| 引用本文： | 周伟.插值和拟合方法在高程异常模型建立中的应用[J].地理空间信息,2021,19(3):99-101,104. |
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| 作者姓名： | 周伟 |
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| 作者单位： | 山东省临沂市水利勘测设计院,山东临沂 276002 |
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| 基金项目： | 国家自然科学基金资助项目;临沂城一期饮水上延工程资助项目;水利部淮委许可资助项目 |
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| 摘 要： | 不同的高程异常模型求解的正常高是有差异的,为了获取临沂市最优的高程异常模型,通过临沂市均匀分布的离散高程异常点,利用插值和拟合的方式生成高程异常曲面;并以临沂市的GPS精化高程作为检测点,分析了各种模型之间的差别。
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| 关 键 词： | 多项式插值曲面 样条函数插值曲面 多项式拟合 多元回归分析 |
Application of Interpolation and Fitting Method in the Establishment of Elevation Anomaly Model |
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| ZHOU Wei.Application of Interpolation and Fitting Method in the Establishment of Elevation Anomaly Model[J].Geospatial Information,2021,19(3):99-101,104. |
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| Authors: | ZHOU Wei |
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| Abstract: | Different elevation anomaly models have different solutions for normal heights.In order to obtain the optimal model,we generated elevation anomaly surfaces by means of interpolation and fitting method through the uniformly distributed discrete elevation anomaly points in Linyi City.Then,taking the GPS refinement elevation of Linyi City as the detection point,we analyzed the differences between various models. |
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| Keywords: | polynomial interpolation surface spline function interpolation surface polynomial fitting multi-variate regression analysis |
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