Figure 11From: Variational Wavelet Ensemble Empirical (VWEE) Denoising Method for Electromagnetic Ultrasonic Signal in High-Temperature Environment with Low-Voltage ExcitationUltrasonic signal of 12CrMo at 625 °C; (a) original signal, (b) VMD decomposition and reconstruction signal, (c) WT denoising signal, and (d) EMD denoising signalBack to article page