Complexity Analysis of Time-Frequency Features for Vibration Signals of Rolling Bearings Based on Local Frequency

<div>The time-frequency distribution of the signal <i>x</i><sub>2</sub>(<i>t</i>) based on the instantaneous frequency and EMD.</div>

Shock and Vibration

Figure 11: Complexity Analysis of Time-Frequency Features for Vibration Signals of Rolling Bearings Based on Local Frequency 