| 基于Helmert方差分量估计的Vondrak滤波方法 |
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| 引用本文： | 钟汉青,曾凡河,周晓卫,丁建勋.基于Helmert方差分量估计的Vondrak滤波方法[J].测绘工程,2008,17(3):31-33. |
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| 作者姓名： | 钟汉青 曾凡河 周晓卫 丁建勋 |
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| 作者单位： | 珠海市规划测绘大队,广东,珠海,519015;中南大学,测绘与国土信息工程系,湖南,长沙,410083 |
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| 摘 要： | 从基于Helmert方差分量估计的Vondrak滤波方法（简称HVF法）的基本假设入手，介绍HVF方法，该方法能够在未知拟合函数的情况下，通过自动选择合理的平滑因子控制数据平滑的程度，对时序数据序列进行合理平滑，最大限度地削弱数据序列中的随机误差，将信号与噪声合理分离。
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| 关 键 词： | Vondrak滤波 Helmert方差分量估计 平滑因子 |
A filtering method of vondrak based on the helmert type variance component estimation |
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| ZHONG Han-qing,ZENG Fan-he,ZHOU Xiao-wei,DING Jian-xun.A filtering method of vondrak based on the helmert type variance component estimation[J].Engineering of Surveying and Mapping,2008,17(3):31-33. |
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| Authors: | ZHONG Han-qing ZENG Fan-he ZHOU Xiao-wei DING Jian-xun |
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| Institution: | ZHONG Han-qing1,ZENG Fan-he2,ZHOU Xiao-wei2,DING Jian-xun1 |
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| Abstract: | From the principle of the Vondrak Filtering,based on the Helmert type variance component estimation(HVF),it describes the HVF in detailed.Numerical simulation experiments indicate that the method can select the smoothing factor reasonablly,and significantly mitigate the random error of measurement and separate signal and noise successfully. |
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| Keywords: | Vondrak filtering Helmert type variance component estimate smoothing factor |
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