| 经验模态分解和小波分析在小通道气液两相流流型辨识中的应用 |
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| 引用本文： | 龙军,冀海峰,王保良,黄志尧,李海青.经验模态分解和小波分析在小通道气液两相流流型辨识中的应用[J].高校化学工程学报,2011,25(5):759-764. |
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| 作者姓名： | 龙军 冀海峰 王保良 黄志尧 李海青 |
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| 作者单位： | 浙江大学工业控制技术国家重点实验室控制科学与工程学系,浙江杭州,310027 |
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| 基金项目： | 国家自然科学基金项目(61074173); 中央高校基本科研业务费专项资金资助 |
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| 摘 要： | 基于两电极电容传感器获得的小通道气液两相流电容波动信号,分别应用经验模态分解(Empirical Mode Decomposition,END)和小波分解将电容信号分解成不同特征尺度上分量的组合.对每层分量提取能量特征,将提取的流型特征参数作为最小二乘支持向量机(Least Squares Support Vector...
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| 关 键 词： | EMD 小波 小通道 气液两相流 流型辨识 |
Application of Empirical Mode Decomposition and Wavelet Analysis to Small Channel Gas-Liquid Two-Phase Flow Pattern Identification |
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| LONG Jun,JI Hai-feng,WANG Bao-liang,HUANG Zhi-yao,LI Hai-qing.Application of Empirical Mode Decomposition and Wavelet Analysis to Small Channel Gas-Liquid Two-Phase Flow Pattern Identification[J].Journal of Chemical Engineering of Chinese Universities,2011,25(5):759-764. |
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| Authors: | LONG Jun JI Hai-feng WANG Bao-liang HUANG Zhi-yao LI Hai-qing |
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| Affiliation: | LONG Jun,JI Hai-feng,WANG Bao-liang,HUANG Zhi-yao,LI Hai-qing(State key Laboratory of Industrial Control Technology,Department of Control Science and Engineering,Zhejiang University,Hangzhou 310027,China) |
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| Abstract: | Based on the capacitance signal of gas-liquid two-phase flow acquired from two-electrode capacitive sensor,Empirical Mode Decomposition(EMD) and wavelet decomposition were used,respectively,to decompose the signal into various characteristic scales.For each component,the energy features were extracted as the inputs of Least Squares Support Vector Machine(LS-SVM) classifier.After training,the classifier was applied to the flow pattern identification of gas-liquid two-phase flow in small channel.Experimental ... |
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| Keywords: | EMD wavelet small channel gas-liquid two-phase flow flow pattern identification |
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