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HHT分解 功率谱绘制 波形分解及振动分析-HHT decomposition draw the waveform decomposition and power spectral analysis of vibration
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The Empirical Mode Decomposition has become very populars in ceits first introduc
tion.Its suitability and expected performance for specific signal processing task is
however some what openended. Addressed are basic questions concerning the decom
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A novel fault feature extraction method based on the local mean decomposition technology
and multi-scale entropy is proposed in this paper. When fault occurs in roller bearings, the
vibration signals picked up would exactly display non-stationary
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The HHT represents a time-dependent series in
a two-dimensional (2-D) time-frequency domain by extracting
instan eous frequency components within the signal through
an Empirical Mode Decomposition (EMD) process. The analytical
background of t
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This paper describes a method for detecting faults
in the tap selector by means of vibration measurements during tap
changer operation, using envelope analysis based on Hilbert transform
and wavelet decomposition. Different failures at the tap
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小波包分析提取振动信号中的分解小波包分析提取振动信号中的分解-Wavelet packet analysis vibration signal decomposition wavelet packet analysis vibration signal decomposition
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