| Wavelet Analytical Forecasting Method of Water Consumption |
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| 作者姓名： | 刘洪波 张宏伟 |
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| 作者单位： | SchoolofEnvironmentScienceandTechnology,TianjinUniversity,Tianjin300072,China |
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| 基金项目： | 国家自然科学基金，天津市自然科学基金 |
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| 摘 要： | A new method of short-term forecasting for water consumption in municipal supply water networks based on wavelet transformation is introduced. By wavelet decomposing commonly used in the signal field, water consumption per hour is decomposed into many series. Trend item, cycle item and random item are separated from the original time series in this way. Then by analyzing, building a model, forecasting every series and composing the results, the forecasting value of the original consumption is received. Simulation results show that this forecasting method is faster and more accurate, of which the error is less than 2%, indicating that the wavelet analytical method is practicable.
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| 关 键 词： | 小波分析 短期预测 用水量 供水网 调度管理 |
Wavelet Analytical Forecasting Method of Water Consumption |
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| LIU Hong-bo,ZHANG Hong-wei.Wavelet Analytical Forecasting Method of Water Consumption[J].Transactions of Tianjin University,2004,10(3):206-208. |
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| Authors: | LIU Hong-bo ZHANG Hong-wei |
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| Abstract: | A new method of short-term forecasting for water consumption in municipal supply water networks based on wavelet transformation is introduced. By wavelet decomposing commonly used in the signal field, water consumption per hour is decomposed into many series. Trend item, cycle item and random item are separated from the original time series in this way.Then by analyzing, building a model, forecasting every series and composing the results, the forecasting value of the original consumption is received. Simulation results show that this forecasting method is faster and more accurate, of which the error is less than 20%,indicating that the wavelet analytical method is practicable. |
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| Keywords: | wavelet transformation water consumption per hour short-term forecasting |
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