Multisource Fault Signal Separation of Rotating Machinery Based on Wavelet Packet and Fast Independent Component Analysis

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/ijrm/volume-2021/9914724/figures/9914724.fig.002a.svgz" name="9914724.fig.002a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>The time domain signals</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/ijrm/volume-2021/9914724/figures/9914724.fig.002b.svgz" name="9914724.fig.002b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>The frequency domain signal</td></tr></table>

<div>The time–frequency waveform of mixed signal.</div>

International Journal of Rotating Machinery

fig2

Figure 2

Figure 2: Multisource Fault Signal Separation of Rotating Machinery Based on Wavelet Packet and Fast Independent Component Analysis 