Hierarchical Interpolation Algorithm for Fast Born Approximation Analysis of Scattering by Electrically Large Objects

E. Elbaz, Y. Brick

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

Abstract

An algorithm for the fast computation of Born approximation scattered field integral for electrically large low-contrast inhomogeneous targets is presented. The algorithm takes advantage of the integrand's phase in order to efficiently sample partial the contributions to the scattered field, in both the source and observer coordinates. These contributions are gradually interpolated and aggregated, with appropriate phase factors, in a multilevel fashion, in order to obtain the total field integral, sampled at a desired density. This reduces the cost of field integrations by three orders of the scatterer's electrical length. For the far-field and incident plane wave scenario, the computations are further simplified and reduced to that of a single scalar component.

Original languageEnglish
Title of host publication2021 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2021
PublisherInstitute of Electrical and Electronics Engineers
Pages185-187
Number of pages3
ISBN (Electronic)9780738146720
DOIs
StatePublished - 1 Jan 2021
Event2021 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2021 - Tel Aviv, Israel
Duration: 1 Nov 20213 Nov 2021

Publication series

Name2021 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2021

Conference

Conference2021 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2021
Country/TerritoryIsrael
CityTel Aviv
Period1/11/213/11/21

Keywords

  • Born approximation
  • Fast methods
  • Multilevel algorithm
  • Wave scattering

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Hardware and Architecture
  • Signal Processing
  • Electrical and Electronic Engineering
  • Instrumentation

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