The paper presents a new Inverse Synthetic Aperture Radar (ISAR) algorithm intended for radar targets reflectivity imaging from scattering measurements. The method is based on a spherical wave near-field illumination of the target overcoming the requirements of an expensive compact range facility to produce a plane wave illumination. The formulation and implementation of the algorithm are described. Sorne simulated reconstructions are included showing a similar resolution and dynamic range than conventional plane wave based ISAR methods. Finally sorne experimental results obtained in anechoic chamber are presented.

Peer Reviewed