Title :
Regularization of Laplace transform inversion for subsurface conductivity and permittivity profile estimation using GPR signals
Author_Institution :
Lab. en Extraction et Exploitation d´´Inf. en Environ. Incertain, ENSIETA, Brest, France
Abstract :
This paper deals with the regularization problem raised by the inversion of GPR radargram. The determination of subsurface conductivity and permittivity profiles leads to Laplace transform inversions for real data. A very recent method to solve this severely ill-posed problem is presented and evaluated using a standard 2D FDTD numerical GPR model for multilayered media.
Keywords :
Laplace transforms; finite difference time-domain analysis; geophysical techniques; ground penetrating radar; surface conductivity; 2D FDTD numerical GPR model; GPR radargram; GPR signals; Laplace transform inversion; multilayered media; permittivity profile; subsurface conductivity; Conductivity; Data mining; Finite difference methods; Fourier series; Fourier transforms; Ground penetrating radar; Inverse problems; Laplace equations; Nonhomogeneous media; Time domain analysis;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1295481
