Regularized bi-conjugate gradient algorithm for tomographic reconstructionof buried objects

This paper deals with a quantitative inversion algorithm for reconstructing the permittivity and conductivity profiles of bounded inhomogeneous buried objects from measured multifrequency and multiincidence backscattered fiel d data. An Edge-Preserving regularization scheme is applied leading to a si gnificant enhancement in the profiles reconstructions. The applications con cern civil engineering and geophysics as well as mine detection and localiz ation. The performance of the reconstructions are illustrated with differen t synthetic data.