Compressed FMCW SAR Image Reconstruction

This paper presents the Compressed Co-prime FMCW SAR (CCF-SAR) system. CCF-SAR is an efficient FMCW SAR compression system based on the idea of co-prime sampling. Model-based reconstruction, by suitably using the forward model obtained from the co-prime sampler is employed for SAR image reconstruction. Multiple priors are used to analyze the performance of CCF-SAR in the plug and play framework. Simulation results demonstrate that the proposed CCF-SAR shows marginal performance improvement over the state-of-art compressed sensing based technique while providing the additional benefits of frugal hardware implementation.