A smoothness index-guided approach to wavelet parameter selection in signal de-noising and fault detection

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Wavelets for fault diagnosis of rotary machines: A review with applications (2014, methodology): “arithmetic mean of the wavelet coefficient moduli was applied to adjust the shape of Gabor wavelet function [40].”
Prognostics and Health Management: A Review of Vibration Based Bearing and Gear Health Indicators (2018, background): “[54] Q. Miao, C. Tang, W. Liang, and M. Pecht, ‘‘Health assessment of cooling fan bearings using wavelet-based filtering,’’ Sensors, vol. 13, no. 1, pp. 274–291, 2013.”