| 小波变换与BP神经网络耦合的洪水预报方法 |
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| 引用本文： | 李致家,周轶,李志龙,马振坤.小波变换与BP神经网络耦合的洪水预报方法[J].水力发电学报,2009,28(2). |
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| 作者姓名： | 李致家 周轶 李志龙 马振坤 |
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| 作者单位： | 李致家,LI Zhijia(河海大学水文水资源学院,南京,210098;水文水资源与水利工程科学国家重点实验室,南京,210098);周轶,马振坤,ZHOU Yi,MA Zhenkun(河海大学水文水资源学院,南京,210098);李志龙,LI Zhilong(山东电力工程咨询院,济南,250013)
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| 基金项目： | 国家自然科学基金，教育部长江学者和创新团队发展计划 |
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| 摘 要： | 为了发掘小波变换与BP神经网络相耦合在洪水预报中的应用价值,提出了基于小波变换和BP神经网络耦合的洪水预报方法.根据小波变换与BP神经网络耦合方式的不同,分别构建了两种结构的网络模型:松散耦合与紧致耦合模型,并利用实测流量时间序列分别对这两种模型进行了训练与验证.计算结果表明,两种模型的预报效果与3层常规BP神经网络相比均得到了不同程度的提高,松散耦合模型的预报效果总体上最优.小波变换与BP神经网络相耦合在洪水预报方面有良好的应用前景.
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| 关 键 词： | 水文预报 耦合洪水预报方法 小波变换 BP神经网络 松散耦合 紧致耦合 |
Flood forecasting method of coupling wavelet transform with BP neural network |
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| LI Zhjia,ZHOU Yi,LI Zhilong,MA Zhenkun.Flood forecasting method of coupling wavelet transform with BP neural network[J].Journal of Hydroelectric Engineering,2009,28(2). |
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| Authors: | LI Zhjia ZHOU Yi LI Zhilong MA Zhenkun |
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| Affiliation: | 1.School of Hydrology and Water Resources;Hohai University;Nanjing\ 210098;2.Shandong Electric Power Engineering Consulting Institute;Ji'nan\ 250013;3.State Key Laboratory of Hydrology;Water Resources and Hydraulic Engineering;Hohai Univ.;Nanjing\ 210098 |
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| Abstract: | In order to explore the value of coupled wavelet transform with BP neural network in flood forecasting,a flood forecasting method is proposed based on the coupling.Two structures of the model are designed according to the different coupled mode.They are the loose coupled model and compact coupled model.The two models are trained and verified with measured runoff time series respectively.The calculated results indicate that the forecast effects of the two models are improved with different degrees compared w... |
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| Keywords: | hydrology forecasting coupled flood forecasting method wavelet transform BP neural network loose coupled compact coupled |
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