High-resolution radar via compressed sensing

  • Authors:
  • Matthew A. Herman;Thomas Strohmer

  • Affiliations:
  • Department of Mathematics, University of California, Davis, CA;Department of Mathematics, University of California, Davis, CA

  • Venue:
  • IEEE Transactions on Signal Processing
  • Year:
  • 2009

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Abstract

A stylized compressed sensing radar is proposed in which the time-frequency plane is discretized into an N × N grid. Assuming the number of targets K is small (i.e., K N2), then we can transmit a sufficiently "incoherent" pulse and employ the techniques of compressed sensing to reconstruct the target scene. A theoretical upper bound on the sparsity K is presented. Numerical simulations verify that even better performance can be achieved in practice. This novel-compressed sensing approach offers great potential for better resolution over classical radar.