Signal Processing of Ultrasonic Data by Frequency Domain Deconvolution

Name: Mohamed Galal Sayed ALI

Organization : Department of Physics, Faculty of Science, Minia University, Egypt

Email : mgalal09@yahoo.com

Name: Nour Zaky ELSAYED

Organization : Department of Physics, Faculty of Science, Minia University, Egypt

Name: Mohamed Rafat EBEID

Organization : Department of Physics, Faculty of Science, Minia University, Egypt

keyword: Deconvolution

; frequency domain

; reflectivity function

; signal processing

; FFT

Abstract: Digital deconvolution of ultrasonic echo signals improves resolution and quality of ultrasonic images. The signal is modeled as resulting from convolution of the Ultrasonic pulse with the reflectivity function with additive noise. A deconvolution in the frequency domain is used to estimate the reflectivity function. An approach to minimize the effects of the transducer is developed. The simulation of pulse echo operating into a medium of interest is deconvolved with the simulation of pulse echo transducers with different values of dynamic range. The technique has been successfully employed to an ultrasonic data model for reconstruction of reflectivity function and the final result shows an improved signal to nose ratio with better axial resolution.

WALAILAK UNIVERSITY. CENTER FOR LIBRARY RESOURCES AND EDUCATIONAL MEDIA

Address: NAKON SI THAMMARAT

Email: clm@wu.ac.th

Created: 2557

Modified: 2557-04-04

Issued: 2557-04-04

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