A Multiple Measurement Vector Approach to Synthetic Aperture Radar Imaging

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Abstract
We study a multiple measurement vector (MMV) approach to synthetic aperture radar (SAR) imaging of scenes with direction-dependent reflectivity and with polarization diverse measurements. The unknown reflectivity is represented by a matrix with row support corresponding to the location of the scatterers in the scene and columns corresponding to measurements gathered from different subapertures or different polarization of the waves. The MMV methodology is used to estimate the reflectivity matrix by inverting in an appropriate sense the linear system of equations that models the SAR data. We introduce a resolution analysis of imaging with MMV, which takes into account the sparsity of the imaging scene, the separation of the scatterers, and the diversity of the measurements. The results of the analysis are illustrated with some numerical simulations.
Funding Information
  • Air Force Office of Scientific Research (FA9550-15-1-0118)

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