TY - GEN
T1 - Fast multilevel physical optics algorithm for far- and near-field scattering analysis of very large targets
AU - Gendelman, Alex
AU - Boag, Amir
PY - 2011
Y1 - 2011
N2 - A fast algorithm based on the physical optics approximation for the evaluation of backscattered field from large scatterers in the near- and far-fields, over a range of aspect angles, frequencies, and radii is presented. The fast computational scheme employs a hierarchical decomposition of the scatterer into sub-domains, direct calculation of the scattered field on very sparse grids for the smallest domains, and multilevel phase/amplitude compensation-interpolation and aggregation scheme applied to increasingly dense grids for the evaluation of the total scattered field.
AB - A fast algorithm based on the physical optics approximation for the evaluation of backscattered field from large scatterers in the near- and far-fields, over a range of aspect angles, frequencies, and radii is presented. The fast computational scheme employs a hierarchical decomposition of the scatterer into sub-domains, direct calculation of the scattered field on very sparse grids for the smallest domains, and multilevel phase/amplitude compensation-interpolation and aggregation scheme applied to increasingly dense grids for the evaluation of the total scattered field.
KW - Approximation methods
KW - Computational Acoustics
KW - Computational Electromagnetics
KW - Electromagnetic modeling
KW - Fast algorithms
KW - High-frequency asymptotics
KW - Physical optics
UR - http://www.scopus.com/inward/record.url?scp=84855803697&partnerID=8YFLogxK
U2 - 10.1109/COMCAS.2011.6105856
DO - 10.1109/COMCAS.2011.6105856
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AN - SCOPUS:84855803697
SN - 9781457716928
T3 - 2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2011
BT - 2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2011
Y2 - 7 November 2011 through 9 November 2011
ER -