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CEPSTRAL PREDICTION ANALYSIS OF THE SIGNAL PATHWAY IN AN ULTRASONIC A-SCAN

โœ Scribed by M.G.S. ALI; A.RAOUF MOHAMED

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
181 KB
Volume
236
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

Digital deconvolution of ultrasonic echo signals improves resolution and the quality of ultrasonic images. The Homomorphic deconvolution technique under noisy conditions is applied to simulation results in an ultrasonic pulse}echo amplitude scan line. The simulation includes radiation coupling and transducer response, as well as frequency-dependent absorption in the "eld medium. An accurate method of estimating the pulse-shaping e!ects of the transducer and the test medium are developed by using Homomorphic "ltering. Experimental results are given which con"rm the modelling.

2000 Academic Press

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