Noise Source Identification of the Carpet Tufting Machine Based on the Single Channel Blind Source Separation and Time-Frequency Signal Analysis

Table 1

Calculation results of all IMF components.

IMF components	Correlation coefficient	Total energy/Pa^2
Original signal	1	16102
IMF 1	0.1864	457.1384
IMF 2	0.1732	197.4810
IMF 3	0.2222	266.4819
IMF 4	0.3987	1253.8
IMF 5	0.5535	1818.3
IMF 6	0.5746	1998.8
IMF 7	0.5046	1245.7
IMF 8	0.5067	2688.4
IMF 9	0.2580	424.8783
IMF 10	0.2096	299.5751
IMF 11	0.0948	55.4166
IMF 12	0.0378	10.5440
IMF 13	0.0004	15.8688
IMF 14	0.0047	3.6633
Residue	0.0052	65.1242