Title :
Image reconstruction from real scattering data using an iterative scheme with incorporated a priori information
Author :
Rieger, W. ; Haas, M. ; Huber, C. ; Lehner, G. ; Rucker, W.M.
Author_Institution :
Inst. fur Theor. der Elektrotech., Stuttgart Univ., Germany
fDate :
4/1/1999 12:00:00 AM
Abstract :
The two-dimensional inverse electromagnetic-scattering problem of reconstructing the material properties of inhomogeneous lossy dielectric cylindrical objects is considered. The material properties are reconstructed from measured far-field scattering data, provided by the USAF Rome Laboratory Electromagnetic Measurement Facility in Ipswich. The targets in the Ipswich data set include perfectly electrically conducting (PEC) targets, penetrable (PEN) targets, and hybrid targets. A new method, which incorporates a priori information about the material properties, is proposed to solve the nonlinear inverse-scattering problem
Keywords :
absorbing media; conducting bodies; dielectric bodies; electromagnetic wave scattering; image reconstruction; inhomogeneous media; iterative methods; a priori information; far-field scattering data; hybrid targets; image reconstruction; inhomogeneous lossy dielectric cylindrical objects; iterative scheme; nonlinear inverse-scattering problem; penetrable targets; perfectly electrically conducting targets; real scattering data; two-dimensional inverse electromagnetic-scattering problem; Dielectric losses; Electromagnetic measurements; Electromagnetic scattering; Finite element methods; Image reconstruction; Integral equations; Iterative methods; Laboratories; Material properties; Permittivity;
Journal_Title :
Antennas and Propagation Magazine, IEEE
