Wavelet transform (WT) is a novel method for a transient analysis of the frequency component in a signal. WT analysis was applied to the elastic wave propagating in wood and its feasibility as a non-destructive evaluation method was investigated.
|Original waves||Wavelet transform||
Wavelet of simple signals
|Influence of grain angle on the WT of elastic
propagating of wood
|WT of elastic wave propagating in wood
with an inner cavity of different diameter
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