Solution of the three-dimensional electromagnetic inverse problem by the local shape function and the conjugate gradient fast Fourier transform methods

Jiun Hwa Lin, Weng Cho Chew

Research output: Contribution to journalArticlepeer-review

Abstract

A numerical algorithm for reconstruction of the permittivity of a three-dimensional penetrable object from scattering data is presented. The reconstruction algorithm is based on the local shape function method combined with the conjugate gradient method with fast Fourier transform. The nonlinearity that is due to multiple scattering is accounted for in an iterative minimization scheme. Numerical examples of simulation data are given.

Original languageEnglish (US)
Pages (from-to)3037-3045
Number of pages9
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Volume14
Issue number11
DOIs
StatePublished - Nov 1997

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Vision and Pattern Recognition

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