| 用高斯-牛顿法确定给水度 |
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| 引用本文： | 张子贤. 用高斯-牛顿法确定给水度[J]. 南水北调与水利科技（中英文）, 2001, 0(1) |
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| 作者姓名： | 张子贤 |
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| 作者单位： | 河北工程技术高等专科学校 沧州 |
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| 摘 要： | 利用阿维里扬诺夫潜水蒸发经验公式确定给水度时,传统的方法是采用线性回归,这时需先确定极限埋深或蒸发指数,其确定方法具有一定的任意性,从而影响给水度的确定。用高斯-牛顿法拟合参数,实现了参数推求的一举寻优,算例表明,该方法实用可行,使拟合精度有所提高。
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| 关 键 词： | 给水度 高斯-牛顿法 拟合参数 |
Application of Gauss-Newton Method to Determining Specific Yield |
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| Zhang Zixian. Application of Gauss-Newton Method to Determining Specific Yield[J]. South-to-North Water Transfers and Water Science & Technology, 2001, 0(1) |
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| Authors: | Zhang Zixian |
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| Abstract: | To determine of the specific yield using phreatic water evaporation empirical formula of Averiyanov,the conventional method use linear regression. This method first must determine critical depth or evaporation exponent. It has definite randomness, so that determining for specific yield is affected. In this paper the best parameters are directly estimated with Gauss-Newton method. Calculation shows that this method is feasible and can increase the fit accuracy. |
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| Keywords: | specific yield Gauss-Newton method fit parameters |
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