TY - GEN
T1 - The application of wavelet transform for lamb wave tomography
AU - Hu, Yong
AU - Xu, Chunguang
AU - Xu, Hanhui
PY - 2009
Y1 - 2009
N2 - An application for Lamb Waves Tomography (LWT) was presented using time-frequency analysis. By the interaction of Lamb wave and defects, there would be several modes, which were likely to result in the overlap of echoes in time domain. Based on wavelet transform, in this paper, arrival time of the Lamb waves was extracted accurately in time-frequency domain, and this method facilitated to get wave arrival time of wave energy easier and more accurate than others before. Wavelet transform was a better way to incorporate time-frequency analysis into tomography algorithms in order to improve image quality.
AB - An application for Lamb Waves Tomography (LWT) was presented using time-frequency analysis. By the interaction of Lamb wave and defects, there would be several modes, which were likely to result in the overlap of echoes in time domain. Based on wavelet transform, in this paper, arrival time of the Lamb waves was extracted accurately in time-frequency domain, and this method facilitated to get wave arrival time of wave energy easier and more accurate than others before. Wavelet transform was a better way to incorporate time-frequency analysis into tomography algorithms in order to improve image quality.
KW - Lamb waves
KW - Time-frequency analysis
KW - Tomography
KW - Wavelet transformation
UR - http://www.scopus.com/inward/record.url?scp=77952783337&partnerID=8YFLogxK
U2 - 10.1109/ICISE.2009.1180
DO - 10.1109/ICISE.2009.1180
M3 - Conference contribution
AN - SCOPUS:77952783337
SN - 9780769538877
T3 - 2009 1st International Conference on Information Science and Engineering, ICISE 2009
SP - 681
EP - 683
BT - 2009 1st International Conference on Information Science and Engineering, ICISE 2009
T2 - 1st International Conference on Information Science and Engineering, ICISE2009
Y2 - 26 December 2009 through 28 December 2009
ER -