Volume 4 Issue 5
Nov.  2015
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Jin Tian. An Enhanced Imaging Method for Foliage Penetration Synthetic Aperture Radar[J]. Journal of Radars, 2015, 4(5): 503-508. doi: 10.12000/JR15114
Citation: Jin Tian. An Enhanced Imaging Method for Foliage Penetration Synthetic Aperture Radar[J]. Journal of Radars, 2015, 4(5): 503-508. doi: 10.12000/JR15114
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An Enhanced Imaging Method for Foliage Penetration Synthetic Aperture Radar

DOI: 10.12000/JR15114

  • (College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China)

Funds:

The National Natural Science Foundation of China under Grant 61271441, The Research Project of NUDT under Grant CJ12-04-02

  • Received Date: 2015-10-12
  • Rev Recd Date: 2015-10-29
  • Publish Date: 2015-10-28
    Abstract
  • FOliage PENetration Synthetic Aperture Radar (FOPEN SAR) is used in low Signal-to-Clutter Ratio (SCR) conditions to detect targets hidden in forests, which introduces difficulties in target detection. In this study, an enhanced imaging method based on the scattering aspect variability of the target is proposed, which improves the SCR of the formed images of hidden targets while maintaining high spatial resolution. In the case of a vehicle target, the dihedral is formed by its main side and the ground. The echo is strongest when the incident electromagnetic wave is along the normal direction of the dihedral. A high-resolution image corresponding to this aspect angle is formed by the proposed enhanced imaging method to increase the SCR of the target and improve the detection performance. Airborne FOPEN SAR data were used to validate the efficiency of the proposed method.

     

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