| 模式分析的核函数设计方法及应用 |
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| 引用本文： | 柳桂国,柳贺,黄道.模式分析的核函数设计方法及应用[J].医学教育探索,2007(3):405-409. |
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| 作者姓名： | 柳桂国 柳贺 黄道 |
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| 作者单位： | 华东理工大学工业自动化国家工程中心分部;浙江工商职业技术学院;浙江宁波; |
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| 摘 要： | 利用卷积算子和H1(R)核函数给出了一种设计Hn(R)核函数的新方法,该方法简便易行。运用该方法设计的核函数,应用在轴承正常振动信号数据、轴承内圈、外圈以及滚动体故障振动信号数据进行核主成分分析(KPCA)中,仿真结果表明:该方法可以有效地识别轴承正常和内圈、外圈以及滚动体故障。
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| 关 键 词： | 核函数 模式分析 卷积算子 核主成分分析（KPCA） 故障诊断 |
Design Method and Application with Kernel Function for Pattern Analysis |
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| LIU Gui-guo,LIU He,HUANG Dao.Design Method and Application with Kernel Function for Pattern Analysis[J].Researches in Medical Education,2007(3):405-409. |
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| Authors: | LIU Gui-guo LIU He HUANG Dao |
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| Institution: | 1;2;1.State Engineering Research Center of Industrial Automation;East China University of Science and Technology;Shanghai 200237;China;2.Zhejiang Business Technology Institute;Ningbo 315020;Zhejiang;China |
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| Abstract: | We present a new method for designing kernel function of H~n(R) using kernel function of H~1(R) and convolution operator.It's possible to select the most suitable kernel function with the method,and its calculation becomes very easy.The method is applied successfully to design the kernel function for kernel principal component analysis using the vibration data of normal,outer race,inner race and ball bearings.The simulation results show the effectiveness of detecting bearings faults. |
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| Keywords: | kernel function pattern analysis convolution operator kernel principal component analysis(KPCA) fault diagnosis |
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