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- W2044708305 abstract "A new model for predicting the sonar target strengths of ensembles of rocks lying on the ocean floor has recently been presented. The model represents rocks by either rigid movable spheres or elastic spheres of variable size, density, and numerical/geometrical configuration. When the rocks are densely packed, and therefore in close proximity to each other, it is important to consider the contribution that multiple scattering interactions make to the collective scattering response. To investigate this question, a T-supermatrix formalism, a self-consistent procedure which includes all orders of multiple scattering [see Lim and Hackman, J. Acoust. Soc. Am. 91, 613–638 (1992)], has been developed to describe the radiatively coupled ensemble. The method allows the coherently summed scattered pressure field in any direction to be determined, as well as the total power scattered by the system. Application to rocks of cobble and pebble size classes indicates that the effect of multiple interactions is dependent upon the acoustic frequency, the rock spacing relative to the radius, and the grazing angle. The results obtained provide a basis for estimating the relative importance of these interactions in determining target strength. [This work was supported by ONR/NRL.]" @default.
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- W2044708305 title "The multiple scattering interactions of cobbles and pebbles lying on the ocean floor" @default.
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- W2044708305 doi "https://doi.org/10.1121/1.422184" @default.
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