Beamforming performance characterization for a Distributed SAR in a long baseline bistatic configuration

Abstract:
Distributed Synthetic Aperture Radar (DSAR) enables high-quality images generation exploiting multiple smaller satellites, so it represents a promising concept for future space missions. When a long baseline between the transmitter and the receivers is realized, additional information about the scene could be retrieved due to the bistatic observation geometry, but standard methods to predict beamforming performance cannot be used. In this paper, two different techniques able to deal with the long baseline bistatic case are introduced and validated in a dedicated simulation environment.