2019-06-18
Bistatic EM Scattering Analysis of an Object Above a Rough Surface Using a Hybrid Algorithm Accelerated with the Adaptive Cross Approximation Method
By
Progress In Electromagnetics Research M, Vol. 82, 19-28, 2019
Abstract
Calculating the RCS (Radar Cross Section) of two 3D scatterers needs to numerically solve a set of integral equations involving numerous unknowns. Such a 3D problem can not be solved easily with a conventional Method of Moments (MoM) by using a direct LU inversion. Thus, a hybridization between the Extended Propagation-Inside-Layer Expansion (E-PILE) and the Physical Optics approximation (PO) reduces signi cantly the memory requirements and CPU time. The resulting method called E-PILE+PO. In this work, we take advantage of the rank-de cient nature of the coupling matrices, corresponding to scatterer 1 (the object) and scatterer 2 (the rough surface) interactions, to further reduce the complexity of the method by using the Adaptive Cross Approximation (ACA).
Citation
Mohammad Kouali, and Noor Obead, "Bistatic EM Scattering Analysis of an Object Above a Rough Surface Using a Hybrid Algorithm Accelerated with the Adaptive Cross Approximation Method," Progress In Electromagnetics Research M, Vol. 82, 19-28, 2019.
doi:10.2528/PIERM19022003
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