Fast multilevel physical optics algorithm for far- and near-field scattering analysis of very large targets

Alex Gendelman, Amir Boag

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publication2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2011
DOIs
StatePublished - 2011
Event2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2011 - Tel Aviv, Israel
Duration: 7 Nov 20119 Nov 2011

Publication series

Name2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2011

Conference

Conference2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2011
Country/TerritoryIsrael
CityTel Aviv
Period7/11/119/11/11

Keywords

  • Approximation methods
  • Computational Acoustics
  • Computational Electromagnetics
  • Electromagnetic modeling
  • Fast algorithms
  • High-frequency asymptotics
  • Physical optics

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