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- W2136622530 abstract "Direct and inverse scattering of an ultrasonic compressional wave by an inhomogeneous cylindrical fluid target buried in the lower half of a two-half-space fluid medium illuminated by plane waves generated in the upper half-space is investigated. The target presents contrasts in both velocity and density with respect to the embedding. For the direct problem, i.e., the computation of the field scattered by a known object illuminated by a known incident wave, the presence of the density-related source term in the wave equation increases the complexity of the numerical solution, as it depends upon the derivative of the field. Such a solution may come from a field integral formulation obtained by means of Green's theorem. The inverse problem is investigated by means of a reflection mode diffraction tomography technique, the data being collected at a single frequency for different illuminations. >" @default.
- W2136622530 created "2016-06-24" @default.
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- W2136622530 date "2002-12-04" @default.
- W2136622530 modified "2023-09-24" @default.
- W2136622530 title "Direct and inverse scattering by anomalies of speed and density in stratified fluid media" @default.
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- W2136622530 doi "https://doi.org/10.1109/ultsym.1990.171603" @default.
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