Imaging the earth's interior
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Acoustic wave propagation in inhomogeneous porous material is studied in the time domain. Fractional calculus is used to describe the inertial, viscous and thermal interactions between fluid and structure. A generalized hyperbolic fractional equation (generalized Telegraph equation) for transient sound wave propagation in inhomogeneous material is established. A wave-splitting technique is presented formally for the description of the dynamic equation of the reflection scattering operator.