An Extended Staring Spotlight Mode Enabled by Concurrent Imaging

Abstract

Synthetic Aperture Radar imaging is characterized by the well-known trade-off between acquired area and resolution. Larger swath widths are obtainable by methods such as ScanSAR, which yields a sizeable area at the cost of a degraded azimuth resolution. Conversely, other techniques such as the Staring Spotlight limit the coverage, increasing the resolution of the observed scene. In this paper, we propose a novel imaging mode where, by using Concurrent Imaging as a support technique, we can double the azimuth length of Staring Spotlight acquisitions without degrading the resolution.