Research Article
Instantaneous Amplitude-Frequency Feature Extraction for Rotor Fault Based on BEMD and Hilbert Transform
Figure 21
The instantaneous amplitude and frequency of c2, c3, and c4 obtained by the HT: (a) the instantaneous amplitude of the real part and imaginary part of c2; (b) the instantaneous frequency of the real part and imaginary part of c2; (c) the instantaneous amplitude of the real part and imaginary part of c3; (d) the instantaneous frequency of the real part and imaginary part of c3; (e) the instantaneous amplitude of the real part and imaginary part of c4; (f) the instantaneous frequency of the real part and imaginary part of c4.
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