Abstract:Fast source imaging method based on RayleighSommerfeld (RS) back-propagation accelerated by multilevel nonuniform grid algorithm (MLNG) is developed. 2D sampling schemes in spherical and oblate-spheroidal coordinates are compared to the full 3D spherical scheme in terms of efficiency and accuracy. The method is evaluated on the example of a parabolic reflector with a number of surface distortions. A good agreement between the results of 2D and 3D schemes is achieved. Accuracy of the proposed algorithms is stud… Show more
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