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MIMO SAR Imaging for Wide-Swath Based on Compressed Sensing

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  • Feng Liu
  • Shanxiang Mu
  • Wanghan Lv

Abstract

To reduce the amount of data to be stored and software/hardware complexity and suppress range ambiguity, a novel MIMO SAR imaging based on compressed sensing is proposed under the condition of wide-swath imaging. Random phase orthogonal waveform (RPOW) is designed for MIMO SAR based on compressed sensing (CS). Echo model of sparse array in range and compressive sampling is reconstructed with CS theory. Resolution in range imaging is improved by using the techniques of digital beamforming (DBF) in transmit. Zero-point technique based on CS is proposed with DBF in receive and the range ambiguity is suppressed effectively. Comprehensive numerical simulation examples are performed. Its validity and practicality are validated by simulations.

Suggested Citation

  • Feng Liu & Shanxiang Mu & Wanghan Lv, 2017. "MIMO SAR Imaging for Wide-Swath Based on Compressed Sensing," Mathematical Problems in Engineering, Hindawi, vol. 2017, pages 1-13, February.
    • Handle: RePEc:hin:jnlmpe:9310865
    DOI: 10.1155/2017/9310865
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