Deconvolution Processing for Flaw Signatures Furgason, E Twyman, R Newhouse, V 2018-02-16T10:53:28.000 2020-06-30T06:26:36Z 2020-06-30T06:26:36Z 1978
dc.description.abstract <p>The ultimate resolution of all ultrasonic flaw detection systems is limited by transducer response. Although the system output contains detailed information about the target structure, these details are masked by the system characteristics. Since the output can be described as the convolution of the target response and the impulse response of the system, it should- in principle - be possible to reverse this operation and extract the target response. In practice, it is found that the presence of even relatively small amounts of noise make the deconvolution process impossible. If, however, the flaw detection system has an extremely high output signal-to-noise ratio it is possible to use estimation techniques in the deconvolution process to achieve a good approximation to the actual target response. Results are presented that demonstrate these techniques applied to both simulated and experimental data. Coupling deconvolution processing with feature extraction is shown to yield an order of magnitude increase in range resolution.</p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 4506
dc.identifier.contextkey 7165546
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1977/allpapers/11
dc.language.iso en
dc.relation.ispartofseries Review of Progress in Quantitative Nondestructive Evaluation
dc.source.bitstream archive/|||Fri Jan 14 18:35:22 UTC 2022
dc.subject.disciplines Engineering Mechanics
dc.subject.disciplines Mechanics of Materials
dc.title Deconvolution Processing for Flaw Signatures
dc.type event
dc.type.genre event
dspace.entity.type Publication
relation.isSeriesOfPublication 289a28b5-887e-4ddb-8c51-a88d07ebc3f3
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