ABSTRACT
The synthetic aperture radar (SAR) is a radar technique used to create high-resolution images of objects, such as landscapes. SAR systems utilize the motion of the radar antenna, whether physical or synthetic, to generate a large effective antenna aperture and achieve a finer spatial resolution. In SAR, the radar antenna moves over a target region while emitting and receiving radar signals. The distance traveled by the SAR device during the illumination of the target scene determines the synthetic aperture size, which is a measure of the effective antenna size. A larger synthetic aperture leads to higher image resolution, allowing SAR to capture detailed images using relatively small physical antennas.
