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| 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
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Fast Three-dimensional Sparse Holography Imaging Algorithm for Personal Security Verification
DOI: 10.12000/JR15116
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Abstract
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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References
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