High Resolution Isar Imaging Using Homotopic Non-Convex Regularization

A novel high-resolution inverse synthetic aperture radar (ISAR) imaging method using homotopic non-convex regularization technique is proposed in this paper. Compared with exsiting compressive sensing (CS) based imaging methods, the proposed method can deal well with off-grid scatterers in the imaging scene, besides it has low computational complexity, therefore has potential to be applied in practice. Experimental results with B727 data show the effectiveness of related analysis.