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

Table 1

Comparison of evaluation indexes of blind source separation at SNR 0 dB.

Algorithm			NMSE/dB	t/s
SOBI		0.531	–12.142
		0.611	–11.311	0.051
FastICA		0.911	–21.132
		0.835	–21.214	0.043
WPA-FastICA		0.998	–52.212
		0.997	–52.318	0.053