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Beam-tracing-based inverse scattering for general aperture antennas

Publication ,  Journal Article
Rao, B; Carin, L
Published in: Journal of the Optical Society of America A: Optics and Image Science, and Vision
January 1, 1999

Iterative techniques are presented for two-dimensional inverse scattering from electrically large regions. The region is illuminated by transmitters with arbitrary profiles; this is an escalation in complexity from the linesource and the plane-wave excitations considered in many previous inverse-scattering studies. Imaging algorithms require an accurate and efficient forward model. Here a Gaussian-beam algorithm is utilized as a forward solver and is incorporated into an iterative-Born inversion scheme. General antenna profiles are incorporated into the algorithm by use of the matched-pursuits technique, by which the aperture fields are matched to the beam-tracing algorithm. Results are presented for several cases in which the simple Born approximation fails. Issues addressed include the types of profiles that can be successfully imaged, suitable antenna distributions, and the range of parameters over which the scheme is effective. Performance of the algorithm in the presence of noisy data is also tested. © 1999 Optical Society of America.

Duke Scholars

Published In

Journal of the Optical Society of America A: Optics and Image Science, and Vision

DOI

EISSN

1520-8532

ISSN

1084-7529

Publication Date

January 1, 1999

Volume

16

Issue

9

Start / End Page

2219 / 2231

Related Subject Headings

  • Optics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
  • 1113 Opthalmology and Optometry
  • 0906 Electrical and Electronic Engineering
  • 0205 Optical Physics
 

Citation

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Rao, B., & Carin, L. (1999). Beam-tracing-based inverse scattering for general aperture antennas. Journal of the Optical Society of America A: Optics and Image Science, and Vision, 16(9), 2219–2231. https://doi.org/10.1364/JOSAA.16.002219
Rao, B., and L. Carin. “Beam-tracing-based inverse scattering for general aperture antennas.” Journal of the Optical Society of America A: Optics and Image Science, and Vision 16, no. 9 (January 1, 1999): 2219–31. https://doi.org/10.1364/JOSAA.16.002219.
Rao B, Carin L. Beam-tracing-based inverse scattering for general aperture antennas. Journal of the Optical Society of America A: Optics and Image Science, and Vision. 1999 Jan 1;16(9):2219–31.
Rao, B., and L. Carin. “Beam-tracing-based inverse scattering for general aperture antennas.” Journal of the Optical Society of America A: Optics and Image Science, and Vision, vol. 16, no. 9, Jan. 1999, pp. 2219–31. Scopus, doi:10.1364/JOSAA.16.002219.
Rao B, Carin L. Beam-tracing-based inverse scattering for general aperture antennas. Journal of the Optical Society of America A: Optics and Image Science, and Vision. 1999 Jan 1;16(9):2219–2231.
Journal cover image

Published In

Journal of the Optical Society of America A: Optics and Image Science, and Vision

DOI

EISSN

1520-8532

ISSN

1084-7529

Publication Date

January 1, 1999

Volume

16

Issue

9

Start / End Page

2219 / 2231

Related Subject Headings

  • Optics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
  • 1113 Opthalmology and Optometry
  • 0906 Electrical and Electronic Engineering
  • 0205 Optical Physics