Ultrasonic testing signal processing based on EEMD

This paper proposes an ultrasonic nondestructive testing signal processing method based on ensemble empirical mode decomposition (EEMD) method. This method uses the correlation coefficient between the component signal and the original signal for feature selection during signal reconstruction, which can effectively suppress modal aliasing. Through the verification of simulation and measured signals, the ensemble empirical mode decomposition method is more suitable for the processing of ultrasonic nondestructive testing signals.