Mode separation of Lamb waves based on dispersion compensation method

• Published in: The Journal of the Acoustical Society of America Vol. 131; no. 4; p. 2714
• Main Authors: Xu, Kailiang, Ta, Dean, Moilanen, Petro, Wang, Weiqi
• Format: Journal Article
• Language: English
• Published: United States 01.04.2012

Ultrasonic Lamb modes typically propagate as a combination of multiple dispersive wave packets. Frequency components of each mode distribute widely in time domain due to dispersion and it is very challenging to separate individual modes by traditional signal processing methods. In the present study,...