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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 19, Iss. 7 — Jul. 1, 2002
  • pp: 1308–1318

Imaging perfectly conducting objects as support of induced currents: Kirchhoff approximation and frequency diversity

Angelo Liseno and Rocco Pierri  »View Author Affiliations


JOSA A, Vol. 19, Issue 7, pp. 1308-1318 (2002)
http://dx.doi.org/10.1364/JOSAA.19.001308


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Abstract

The problem of determining the shape of perfectly conducting objects from knowledge of the scattered electric field is considered. The formulation of the problem accommodates the nature of the distribution of the induced surface current density. Thus, as the unknown representing the object’s contour, a single layer distribution is chosen so that the contour of the scatterer is described by its support. The nonlinear unknown-data mapping is then linearized by means of the Kirchhoff approximation, and the problem is recast as the inversion of a linear operator acting on a distribution space. An extension of the singular value decomposition approach to solve the linearized problem is provided and numerical results are presented.

© 2002 Optical Society of America

OCIS Codes
(100.3010) Image processing : Image reconstruction techniques
(100.3190) Image processing : Inverse problems
(290.3200) Scattering : Inverse scattering

History
Original Manuscript: August 13, 2001
Revised Manuscript: January 3, 2002
Manuscript Accepted: January 3, 2002
Published: July 1, 2002

Citation
Angelo Liseno and Rocco Pierri, "Imaging perfectly conducting objects as support of induced currents: Kirchhoff approximation and frequency diversity," J. Opt. Soc. Am. A 19, 1308-1318 (2002)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-19-7-1308


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