Time-Frequency Analysis Based on Improved Variational Mode Decomposition and Teager Energy Operator for Rotor System Fault Diagnosis

Table 1

Correlation coefficient between IMFs and simulation signal.

IMF1	IMF2	IMF3	IMF4	IMF5	IMF6	IMF7
0.5018	0.4726	0.3971	0.4480	0.4336	0.5266	0.0308