李宏坤   

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Language:English

Paper Publications

Title of Paper:基于分数阶Fourier变换的经验模式分解方法研究

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Date of Publication:2008-07-25

Journal:振动与冲击

Included Journals:EI、PKU、ISTIC、CSCD

Volume:27

Issue:7

Page Number:127-130

ISSN No.:1000-3835

Key Words:经验模式分解;Hilbert谱;分数阶Fourier变换

Abstract:在分析了经验模式分解(EMD)及分数阶Fourier变换的基础上,提出了一种基于分数阶Fourier变换的经验模式分解方法,并且深入探讨了该方法的分解特性.对仿真和实际振动信号的分析结果表明,对直接采用经验模式分解分析结果不够明确的信号,基于分数阶Fourier变换的经验模式分解方法对信号进行分析是比较有效的方法.

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