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- Title
A Practical Millimeter-Wave Holographic Imaging System with Tunable IF Attenuator.
- Authors
Yu-Kun Zhu; Ming-Hui Yang; Liang Wu; Yun Sun; Xiao-Wei Sun
- Abstract
A practical millimeter-wave (mmw) holographic imaging system with tunable intermediate frequency (IF) attenuator has been developed. It can be used for the detection of concealed weapons at security checkpoints, especially the airport. The system is utilized to scan the passenger and detect the weapons hidden in the clothes. To reconstruct the three dimensions (3-D) image, a holographic mmw imaging algorithm based on aperture synthesis and back scattering is presented. The system is active and works at 28-33 GHz. Tunable IF attenuator is applied to compensate the intensity and phase differences between multi-channels and multi-frequencies.
- Subjects
HOLOGRAPHY; RADIO attenuators; RADIO frequency; THREE-dimensional imaging; ALGORITHMS
- Publication
Frequenz, 2017, Vol 71, Issue 11/12, p575
- ISSN
0016-1136
- Publication type
Article
- DOI
10.1515/freq-2016-0093