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- W1978455772 abstract "Two different layer recursive algorithms for reconstructing an inhomogeneous viscoelastic medium are presented. A viscoelastic medium is one whose stress–strain relation is not instantaneous, in that the present stress depends on past strains. Hence, the inverse scattering problem for such media involves the reconstruction of functions varying in time as well as in space; thus it is much more difficult than the inverse problem for simple acoustic media. Both algorithms reconstruct an inhomogeneous viscoelastic medium whose wave speed c(z) and elastic modulus G(z,t) vary with position; variations in density ρ(z) can also be reconstructed using the first algorithm. The first algorithm requires as data the steady-state reflection response of the medium to a point harmonic source at a wide range of frequencies. The second algorithm requires as data only the reflection response to a normally incident plane wave, but applies only to layered media whose relaxation times are less than the two-way travel time through a layer. Several computer simulations illustrate the performance of the algorithm on synthetic data." @default.
- W1978455772 created "2016-06-24" @default.
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- W1978455772 date "1988-11-01" @default.
- W1978455772 modified "2023-09-25" @default.
- W1978455772 title "Layer stripping approaches to inverse scattering for inhomogeneous viscoelastic media" @default.
- W1978455772 doi "https://doi.org/10.1121/1.397157" @default.
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