Imaging of rough surfaces having impedance boundary condition by the use of Newton iterative algorithm

T Yelkenci - IEEE Geoscience and Remote Sensing Letters, 2009 - ieeexplore.ieee.org
IEEE Geoscience and Remote Sensing Letters, 2009ieeexplore.ieee.org
In this letter, an inverse scattering problem for the reconstruction of rough surfaces having
standard impedance boundary condition (IBC) is presented. The method presented in this
letter is the extension of a method given by Yapar to the case of IBC. The reconstruction is
obtained from the scattered field measurements for a plane wave illumination of the
inaccessible rough surface. Through a special representation of the scattered field in terms
of a Fourier transformation and a Taylor series expansion, the problem is first reduced to a …
In this letter, an inverse scattering problem for the reconstruction of rough surfaces having standard impedance boundary condition (IBC) is presented. The method presented in this letter is the extension of a method given by Yapar to the case of IBC. The reconstruction is obtained from the scattered field measurements for a plane wave illumination of the inaccessible rough surface. Through a special representation of the scattered field in terms of a Fourier transformation and a Taylor series expansion, the problem is first reduced to a nonlinear operator equation. Then, this nonlinear equation is iteratively solved via the Newton method. Numerical results show that the method produces quite satisfactory results regardless of the values of the impedance.
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