Chinese Journal of Mechanical Engineering

Table 1 Comparison of noise reduction performances of various methods

From: Variational Wavelet Ensemble Empirical (VWEE) Denoising Method for Electromagnetic Ultrasonic Signal in High-Temperature Environment with Low-Voltage Excitation

Denoising method	Original signal	VMD	WT	EMD	VWEE
SNR(dB)	17.6612	18.2363	16.6888	21.3534	55.4574

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