Criterio de Resolución Axial para la Técnica Pulso-Eco (Axial Resolution Criteria for Pulse_Echo Measurement Technique)

Enrique A. Vargas Cabral (evargas@uca.edu.py)1, Ramón Ceres Ruiz (ceres@iai.csic.es)2


1Laboratorio de Electrónica Digital de la Fac. de Ciencias y Tecnología, Universidad Católica Nuestra Señora de la Asunción, Asunción-Paraguay
2I.A.I., Consejo Superior de Investigaciones Científicas de España, Madrid - España

This paper appears in: Revista IEEE América Latina

Publication Date: June 2004
Volume: 2,   Issue: 2 
ISSN: 1548-0992


Abstract:
In this article, the maximum interspatial axial resolution that can be obtained with an ultrasonic system operating in pulse-echo mode is determined by applying a result of information theory: the Shannon-Hartley theorem. The expression obtained is function of the bandwidth and the signal to noise ratio of the emitted pulse. This expression was validated by experimental measurements.

Index Terms:
resolution, pulse-echo, TOF, ultrasound, detection, localization, Shannon-Hartley, deconvolution   


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