Title :
Inversion of EM scattering data through a multiresolution regularization approach within the contrast source formulation
Author :
Oliveri, Giacomo ; Tommasi, Andrea ; Massa, Andrea ; Randazzo, Andrea ; Pastorino, Matteo
Author_Institution :
ELEDIA Res. Center@DISI, Univ. of Trento, Trento, Italy
Abstract :
The integration of an iterative multi-scaling approach (IMSA) with the Inexact Newton (IN) method is proposed for the solution of the contrast-source inversion (CSI) problem. More in detail, the investigation domain is adaptively discretrized performed according to the detected Regions-of-Interest. Then, the contrast-source discretized problem is linearized by means of an IN step, which comprises a truncated Landweber loop. A preliminary numerical validation is presented to assess the features of the proposed IMSA-IN-CSI approach.
Keywords :
Newton method; electromagnetic wave scattering; iterative methods; CSI; EM scattering data inversion; IMSA integration; IN method; contrast-source discretized problem; contrast-source inversion formulation; inexact Newton method; iterative multiscaling approach integration; multiresolution regularization approach; numerical validation; regions-of-interest detection; truncated Landweber loop; Electromagnetics; Inverse problems; Microwave antennas; Microwave imaging; Microwave theory and techniques;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348672