TY - RPRT AV - public KW - microwave imaging (MI) KW - contrast source inversion (CSI) KW - Bayesian compressive sensing (BCS) KW - inverse scattering (IS) M1 - technical_report PB - ELEDIA Research Center - University of Trento ID - elediasc12914 Y1 - 2025/// UR - http://www.eledia.org/students-reports/914/ TI - Sparse Target Reconstruction via Multi-Resolution Bayesian Compressive Sensing N2 - This work introduces a novel multi-step inverse scattering method within the contrast source inversion (CSI) framework, specifically designed to reconstruct non-Born scatterers. The technique models the unknown contrast sources using a multi-resolution (MR) approach, enabling a more flexible and detailed representation. These sources are then recovered iteratively using Bayesian compressive sensing (BCS). The performance and reliability of the MR-BCS-CSI method are validated through a set of numerical test cases. A1 - SALUCCI, Marco A1 - POLI, Lorenzo A1 - ZARDI, Francesco A1 - TOSI, Luca A1 - LUSA, Samantha A1 - MASSA, Andrea ER -