Examination of a spectral-based ultrasonic analysis method for materials characterization and evaluation

This study examines the outcomes due to the selection of pulse width, the use of standard window functions, and spectral normalization using a reference spectrum. The consequences are assessed through the inspection of individual frequency spectra as well as two dimensional images based upon the peak density parameter. It was found that peak density was highly dependent on the window function employed and was also subject to the pulse width. Spectral normalization was found to have little effect on peak density calculations.
Source: Biomedical Signal Processing and Control - Category: Biomedical Science Source Type: research