A new technique for microwave imaging of three-dimensional dielectric targets is presented in this paper. The underlying inverse scattering problem is solved by using a multi-resolution strategy, able to iteratively focus the inversion on the regions containing the targets, combined with an efficient regularization procedure based on an...
-
2015 (v1)PublicationUploaded on: March 27, 2023
-
2016 (v1)Publication
In this work, an innovative approach for GPR imaging is presented. The proposed methodology exploits an iterative multi-resolution scheme (i.e., the IMSA) in order to reduce the overall ratio between problem unknowns and informative data, while processes multi-frequency (MF) components of the measured GPR spectrum through a customized particle...
Uploaded on: April 14, 2023 -
2014 (v1)Publication
No description
Uploaded on: May 13, 2023 -
2013 (v1)Publication
The inspection of 2-D scatterers buried in a lossy half-space from field measurements is formulated within the framework of the second-order Born approximation (SOBA) of the inverse scattering problem. An iterative multi-scaling approach (IMSA) is combined with a two-step inexact-Newton (IN) algorithm to solve the arising problem. A set of...
Uploaded on: May 13, 2023 -
2015 (v1)Publication
The imaging of three-dimensional scatterers is addressed by means of a new microwave inversion algorithm that combines an Inexact Newton (IN)-based deterministic reconstruction technique with a multi-focusing approach. This choice is motivated by the capability of multi-resolution techniques to reduce non-linearity issues arising in 3D imaging...
Uploaded on: March 27, 2023 -
2021 (v1)Publication
The electromagnetic detection of buried objects is addressed in this paper, where a three-loop iterative imaging technique is proposed. A quantitative solution of the nonlinear inverse scattering problem is obtained by integrating a multiscaling strategy with a multifrequency inexact-Newton technique formulated in Lp spaces. Numerical results,...
Uploaded on: April 14, 2023 -
2021 (v1)Publication
A multi-focusing method for quantitative subsoil inverse scattering (IS), which enhances an inexact-Newton (IN) technique by means of an iterative zooming strategy, is considered. The approach simultaneously exploits multi-chromatic scattered field data from a set of multi-static probes above the air-soil interface. Numerical experiments have...
Uploaded on: March 27, 2023 -
2017 (v1)Publication
A novel approach for three-dimensional electromagnetic imaging is presented. This technique is a combination of an iterative multiscaling approach with an inexact-Newton method. The multiscaling procedure allows one to iteratively focus the region of interest on the detected target, whereas the inexact-Newton method provides an efficient...
Uploaded on: April 14, 2023 -
2021 (v1)Publication
An iterative multiscaling approach for solving the electromagnetic inverse scattering problem related to the imaging of shallow subsurface targets with the ground-penetrating radar (GPR) is proposed. The approach combines the zooming properties of the multiscaling technique with the reconstruction capabilities of an Inexact-Newton (IN) method...
Uploaded on: April 14, 2023