Title :
Three dimensional complex permittivity reconstruction by means of Newton-type microwave imaging
Author :
De Zaeytijd, Jurgen ; Franchois, A. ; Eyraud, C. ; Geffrin, J.M.
Author_Institution :
INTEC, Ghent Univ., Ghent
Abstract :
This paper treats the full-wave inverse electromagnetic scattering problem of complex permittivity reconstruction in three dimensions. Two Newton-type methods are used to solve this non-linear and ill-posed problem by minimizing a new type of regularized cost function. The Gauss-Newton method and the Broyden-Fletcher-Goldfarb-Shanno quasi-Newton algorithm are compared and results are presented, both from simulated and measured data.
Keywords :
Newton method; electromagnetic wave scattering; microwave imaging; permittivity measurement; 3D complex permittivity reconstruction; Broyden-Fletcher-Goldfarb-Shanno quasi-Newton algorithm; Gauss-Newton method; Newton-type microwave imaging; full-wave inverse electromagnetic scattering; Cost function; Electromagnetic measurements; Electromagnetic scattering; Image reconstruction; Inverse problems; Least squares methods; Microwave imaging; Newton method; Permittivity measurement; Recursive estimation; complex permittivity; gauss-Newton optimization; inverse problems; microwave imaging; nonlinear optimization; quasi-Newton optimization; regularization;
Conference_Titel :
Antennas and Propagation, 2006. EuCAP 2006. First European Conference on
Conference_Location :
Nice
Print_ISBN :
978-92-9092-937-6
DOI :
10.1109/EUCAP.2006.4584513
