The wavenumber algorithm for full-matrix imaging using an ultrasonic array

  title={The wavenumber algorithm for full-matrix imaging using an ultrasonic array},
  author={A J Hunter and B. W. Drinkwater and P. D. Wilcox},
  journal={IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control},
Ultrasonic imaging using full-matrix capture, e.g., via the total focusing method (TFM), has been shown to increase angular inspection coverage and improve sensitivity to small defects in nondestructive evaluation. In this paper, we develop a Fourier-domain approach to full-matrix imaging based on the wavenumber algorithm used in synthetic aperture radar and sonar. The extension to the wavenumber algorithm for full-matrix data is described and the performance of the new algorithm compared with… CONTINUE READING
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