TY - RPRT N2 - This work deals with an innovative two-dimensional (2D) free-space microwave imaging technique. The developed inverse scattering (IS) technique is aimed at enabling Compressive Sensing (CS) to deal with the retrieval of unknown scatterers which are not necessarily sparse in the standard sense, i.e., in the pixel domain. Accordingly, the proposed technique exploits a user-defined dictionary of expansion bases that are used to retrieve several guesses of the electromagnetic properties of the investigation domain. Then, following the BCS paradigm, the sparsest solution is recognized as the optimal one. Some numerical results are presented, in order to verify the effectiveness of the proposed IS technique for imaging scatterers with arbitrary size and shape. M1 - technical_report Y1 - 2017/// UR - http://www.eledia.org/students-reports/743/ TI - Extending the Applicability Range of Compressive Sensing?Based Microwave Imaging to Arbitrary Scatterers KW - Inverse Scattering (IS) KW - Bayesian Compressive Sensing (BCS) KW - Microwave Imaging KW - First Order Born Approximation PB - ELEDIA Research Center - University of Trento AV - public A1 - Anselmi, N. A1 - Oliveri, G. A1 - Hannan, M. A1 - Salucci, M. A1 - Massa, A. ID - elediasc12743 ER -