Intelligent Mechanical Fault Diagnosis Based on Multiwavelet Adaptive Threshold Denoising and MPSO

Table 1

SNR and MSE of different wavelet denoising techniques.

	Multiwavelet adaptive threshold denoising	Multiwavelet neighboring coefficient denoising	db2 wavelet threshold denoising
SNR	14.516	11.098	9.667
MSE	0.212	0.235	0.306