NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Evaluation of Waveform Mapping as a Signal Processing Tool for Quantitative Ultrasonic NDEThe mapping of one pulsed waveform into another, more desirable waveform by the application of a time-domain filter has been employed in a number of NDE situations. The primary goal of these applications has been to improve the range resolution of an ultrasonic signal for detection of echoes arising from particular interfaces masked by the response of the transducer. The work presented here addresses the use of this technique for resolution enhancement in imaging situations and in mapping signals from different transducers to a common target waveform, allowing maintenance of quantitative calibration of ultrasonic systems. We also describe the use of this technique in terms of the frequency analysis of the resulting waveforms.
Document ID
19960026656
Acquisition Source
Langley Research Center
Document Type
Reprint (Version printed in journal)
Authors
Johnston, Patrick H. (NASA Langley Research Center Hampton,VA United States)
Kishoni, Doron (College of William and Mary Williamsburg, VA United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1993
Subject Category
Communications And Radar
Report/Patent Number
NASA-TM-111550
NAS 1.15:111550
Accession Number
96N28223
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available