Abstract
Methods based on wavelet analysis are used to study longitudinal elastic waves propagating in aluminum single crystals in the [111] and [001] directions at frequencies of 5 and 10 MHz. Results of the wavelet filtering of responses of the laser Doppler interferometer to these acoustic signals are reported. The efficiency of filtering the time dependencies of the interferometer response in the presence of white and colored noise is studied. Recommendations concerning the choice of the filtering parameters are given.
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