Volume 5 Issue 3
Jun.  2016
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Liu Wei, Li Chao, Zhang Qunying, Fang Guangyou. Fast Three-dimensional Sparse Holography Imaging Algorithm for Personal Security Verification[J]. Journal of Radars, 2016, 5(3): 271-277. doi: 10.12000/JR15116
Citation: Liu Wei, Li Chao, Zhang Qunying, Fang Guangyou. Fast Three-dimensional Sparse Holography Imaging Algorithm for Personal Security Verification[J]. Journal of Radars, 2016, 5(3): 271-277. doi: 10.12000/JR15116

Fast Three-dimensional Sparse Holography Imaging Algorithm for Personal Security Verification

doi: 10.12000/JR15116
Funds:

The Knowledge Innovation Program of the Chinese Academy of Sciences (YYYJ-1123), The National High Technology Research and Development Program of China (2012AA121901), The National Natural Science Foundation of China (11174280)

  • Received Date: 2015-11-04
  • Rev Recd Date: 2016-01-05
  • Publish Date: 2016-06-28
  • Terahertz holographic imaging has broad applications in the field of personal security verification, concealed weapon detection, and non-destructive testing. To suppress the range ambiguity, a fast sparse image reconstruction approach and imaging scheme is proposed for three-dimensional terahertz holography. The proposed algorithm establishes the terahertz imaging geometry and corresponding echo model. The range ambiguity is eliminated using the random step frequency method, and a frequency shift procedure is applied to recover the targets with a high computational efficiency. Simulation and experimental results verify the proposed algorithm.

     

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