A newton method for the reconstruction of perfectly conducting slightly rough surface profiles


Yapar A., OZDEMIR O., SAHINTURK H., Akduman I.

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol.54, no.1, pp.275-279, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 54 Issue: 1
  • Publication Date: 2006
  • Doi Number: 10.1109/tap.2005.861513
  • Journal Name: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.275-279
  • Keywords: inverse scattering, Newton's method, rough surface, SCATTERING, FIELD
  • Istanbul Technical University Affiliated: No

Abstract

A new method for the reconstruction of a one-dimensional profile of a perfectly conducting rough surface illuminated by a plane wave at a fixed frequency is addressed. By a special representation of the scattered electric field, the total field in the half-space over the surface is obtained from the measured data, which leads to a nonlinear equation with a surface function as unknown. The nonlinear equation is solved iteratively via the Newton method and a regularization in the least square sense. Numerical simulations show that the method yields satisfactory reconstructions for slightly rough surface profiles.