A novel nonlinear, continuous wavelet transform filter is developed to separate short-time and narrow-frequency components from a set of broadband echoes from a finite cylindrical shell. The components are caused by specific physical phenomena and are called wavepackets. Two wavepackets sometimes overlap in time and frequency, which makes wavepacket synthesis more difficult.
Topics
Continuous wavelet transform
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© 2000 Acoustical Society of America.
2000
Acoustical Society of America