Digital Beamforming for Spaceborne Reflector-Based Synthetic Aperture Radar, Part 2: Ultrawide-swath imaging mode

Utilizing digital beamforming (DBF) techniques in conjunction with the feed array of large deployable reflector antennas can boost the performance of synthetic aperture radar (SAR) systems. Multichannel SAR overcomes the constraints of classical single-channel SAR, allowing for wide-swath imaging at fine azimuth resolution. Part 1 of this tutorial provided an introduction to the instrument structure of a DBF imaging radar and the particularities/variants of its basic operation mode, known as a single-beam scan-on-receive (SCORE) system.