...变换；模态函数；瞬时幅值 [gap=1207]Key words: DFIG; inter-turn short fault; Hilbert-Huang transform; the Intrinsic Mode; instantaneous amplitude ...
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The EMD method and its adaptive filtering property in the process of obtaining the intrinsic mode function(IMF) were discussed.
讨论了经验模态分解方法及其在获取固有模态函数过程中的自适应滤波特性。
In the course of filtration, interpolation is the essential step to produce the intrinsic mode functions, and the basis of the Hilbert spectral analysis.
在筛选过程中，插值是产生本征模函数关键的一步，是希尔伯特谱分析的基础。
The main innovations embodied in this method are the introduction of the intrinsic mode functions based on local properties of signals, which make the instantaneous frequency meaningful.
局域波分析方法的重大突破在于用基于信号局部特征的多个基本模式分量来描述信号，并赋予每个基本模式分量具有实际物理意义的瞬时频率。
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