Multiscale Permutation Entropy Based Rolling  Bearing Fault Diagnosis

<table>The outputs of BP-classifier with feature vector consisting of the PE when <svg height="11.125" id="M108" style="vertical-align:-0.0627pt" version="1.1" viewbox="0 0 35.912498 11.125" width="35.912498" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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Shock and Vibration

fig9

Figure 9

Figure 9: Multiscale Permutation Entropy Based Rolling  Bearing Fault Diagnosis 