A very flexible and efficient iterative physical optics (IPO) algorithm is presented for analyzing the electromagnetic (EM) scattering of complex and electrically large problems. The algorithm accounts for multiple interactions between the objects comprised in the scenarios under the physical optics (PO) approximation. Various techniques for accelerating and parallelizing the algorithm were used, thus obtaining an efficient tool that can be used in novel high-frequency solvers.
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Pandolfo et al. (2017) studied this question.
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