A Global System Identification Approach for the Accurate Parametric Modeling of Ultrasonic Reflection and Transmission Experiments

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Abstract

This paper presents a global system identification approach for the
parametric modeling of both reflection and transmission experiments
performed on a linear homogeneous visco-elastic material at normal
incidence. It is shown that this global approach leads to improved
estimates of the parameters occuring in the analytical model for the
reflection and transmission coefficients of a visco-elastic plate
immersed in water. The plane wave propagation model takes into account
the absorption and dispersion in the material as well as an analytic
diffraction correction for the beam spread. The proposed inverse
procedure is based on a maximum likelihood estimator.
Original languageEnglish
JournalIEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Publication statusPublished - 1 Jun 1996

Bibliographical note

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, Vol. 43, No. 4, July 1996 pp. 628-639

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