Reference wavelets used for deconvolution of ultrasonic time-of-flight diffraction ( ToFD ) signals

  title={Reference wavelets used for deconvolution of ultrasonic time-of-flight diffraction ( ToFD ) signals},
  author={F. Honarvar and Amin YAGHOOTIAN and K. N. Toosi},
  • F. Honarvar, Amin YAGHOOTIAN, K. N. Toosi
  • Published 2008
One major disadvantage of ultrasonic time-of-flight diffraction (ToFD) technique is the weakness of echoes which are diffracted from crack tips. This shortcoming, to some extent, can be overcome by application of proper signal processing techniques. Deconvolution techniques have shown to be quite effective for this purpose. A deconvolution process needs to use a reference wavelet in order to extract the required information from the signal. Accordingly, one of the major challenges in using… CONTINUE READING

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