Application of digital pulse shaping by least squares method to ultrasonic signals in compositesFor ultrasonic testing in composites, a signal processing tool is identified that can significantly enhance the sharpness of ultrasonic waveforms and provide clearer pictures of the nature of the material flaw. The technique artificially improves the resolution of the system to discrete events by pulse shaping the measured waveform based on the signal from a reference. The optimum pulse shape operator is determined from a least-squares method in the z-domain.
Document ID
19860033090
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kishoni, D. (NASA Langley Research Center Hampton, VA, United States)