Ground Based Synthetic Aperture Radar with 3D Imaging Capability

In this paper the authors propose a novel Ground-based Synthetic Aperture Radar (GBSAR) system able to acquire both monostatic and bistatic images. Monostatic images are acquired in a few minutes but they provide only 2D information about the targets in its field of view. Bistatic images require several hours, but they give 3D information. This 3D imaging capability can be of interest when the radar equipment is used to image complex scenarios, where the altitude (z-axis) is not an unambiguous function of the (x,y) position. The letter reports the working principle and an experimental test of the equipment.