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J Acoust Soc Am. 1992 Feb;91(2):646-51.

Computation of the far-field time domain solution of the scattering problem.

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General Electric Medical Systems, Milwaukee, Wisconsin 53203.


This paper presents a new technique for calculating the time domain (transient) far-field scattered pressure. The scattering problem is divided in two steps; the first step evaluates the field distribution inside the scatterer, and the second step generates the far-field scattered pressure by 3-D Radon transform of these data for each time step and summing over time. The algorithm results in considerable saving in CPU time and memory by simplifying the calculation along the path from scatterer to receiver. This technique can also be used in two dimensions.

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