| 苏怀智,温志萍,吴中如,赖道平.大坝安全性态的非线性组合监控[J].水利学报,2005,36(2):0197-0202 |
| 大坝安全性态的非线性组合监控 |
| Nonlinear combined monitoring of dam safety |
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| DOI： |
| 中文关键词: 大坝 安全监控 非线性组合 小波网络 动力学特征 |
| 英文关键词: dam safety monitoring nonlinear combination wavelet network dynamic characteristics |
| 基金项目: |
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| 中文摘要: |
| 利用小波网络构造模型的优化组合函数，以实现对不同的大坝安全监控子模型的非线性组合。将非线性组合函数的拟合转化为小波网络参数的估计，采用遗忘因子法训练网络的权值，利用递推预报误差算法训练尺度因子和平移因子。最后，将该非线性组合模型用于对大坝安全性态的拟合和预测。实例表明，该方法具有很强的泛化能力与自适应数据和函数变化的能力，可以实现大坝安全监控多模型的优化组合，能够有效提高拟合和预测精度。 |
| 英文摘要: |
| The wavelet network method is applied to establish the optimal combination function for realizing the nonlinear combination of various submodel for dam safety monitoring. By this method, the fitting of the nonlinear combination function is transformed into parameters estimation of wavelet network The forgetting factor method is used to train the weights of wavelet network and scale factors, and displacement factors are trained by the predicting error method. The numerical example shows that the proposed combination model is feasible and is effective in promoting the accuracy of forecasting. |
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