Coprime Synthetic Aperture Radars

摘要

In this paper we present a comprehensive discussion regarding the application to Synthetic Aperture Radar of coprime array concepts. The proposed coprime SAR configurations, which we name CopSAR and OrthoCopSAR depending on the used waveforms, can be used to reduce the amount of data to be stored and processed and to increase the range swath, in case of maritime scenes made up of bright targets over a dark background The costs to be paid are the reduction of the target-to-background ratio and the presence of a (non-stringent) limit on the maximum ship size. Performance indicators and sample results relevant to all the proposed implementations are reported.