Estimation of the Slope of the Acoustic Attenuation Coefficient
- 1 April 1984
- journal article
- research article
- Published by SAGE Publications in Ultrasonic Imaging
- Vol. 6 (2) , 126-138
- https://doi.org/10.1177/016173468400600202
Abstract
In this paper, a theoretical framework is developed which removes the Gaussian assumption commonly used in ultrasonic attenuation estimation based on mean frequency shift. The theory is developed for general non-Gaussian spectra and for media whose attenuation coefficient is nonlinear with frequency. Then, a linear approximation in the estimation of the attenuation coefficient's slope is examined. It is shown that the error due to the linear approximation is negligibly small.Keywords
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