| Nash模型参数估计的熵法 |
| |
| 引用本文： | 张明.Nash模型参数估计的熵法[J].水利学报,2002,33(1):0062-0066. |
| |
| 作者姓名： | 张明 |
| |
| 作者单位： | 云南省水利厅,云南,昆明,650021 |
| |
| 摘 要： | 本文提出了一种Nash模型参数估计方法——熵法。该法以Nash模型的数学表达形式同于Γ分布为基础，应用最大信息熵原理，构造参数估计方程；然后将对数均值展为泰勒级数，并略去高阶项，导出相应的计算公式。通过假想水文资料检验这一方法，并与矩法的估计值相比较，结果表明本文提出的方法优于矩法。
|
| 关 键 词： | Nash模型 参数估计 最大信息熵原理 熵法 |
| 文章编号： | 0559-9350(2002)01-0062-04 |
| 修稿时间： | 2000年11月14 |
Entropy method for estimating the parameters of Nash model |
| |
| ZHANG Ming.Entropy method for estimating the parameters of Nash model[J].Journal of Hydraulic Engineering,2002,33(1):0062-0066. |
| |
| Authors: | ZHANG Ming |
| |
| Affiliation: | Water Conservancy Department of Yunnan Province |
| |
| Abstract: | An entropy method for estimating the parameters of Nash model is proposed.Based on the mathematical expression of the relationship between Nash model and Gamma distribution and using the maximum information entropy principle,the equation for estimating the parameters is established.The formula for calculation can be deduced from the logarithmic expected value if it is expanded into Taylor's series and the terms higher than second order are neglected. The verification using ideal hydrographic data shows that the proposed method is better than the moment method. |
| |
| Keywords: | Nash model parameter estimation principle of maximum information entropy entropy method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《水利学报》浏览原始摘要信息 |
|
点击此处可从《水利学报》下载全文 |
