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26 May 2011 Multi-sensor millimeter-wave system for hidden objects detection by non-collaborative screening
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Abstract
In this work, we present the development of a multi-sensor system for the detection of objects concealed under clothes using passive and active millimeter-wave (mmW) technologies. This study concerns both the optimization of a commercial passive mmW imager at 94 GHz using a phase mask and the development of an active mmW detector at 77 GHz based on synthetic aperture radar (SAR). A first wide-field inspection is done by the passive imager while the person is walking. If a suspicious area is detected, the active imager is switched-on and focused on this area in order to obtain more accurate data (shape of the object, nature of the material ...).
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Rhalem Zouaoui, Romain Czarny, Frédéric Diaz, Antoine Khy, and Thierry Lamarque "Multi-sensor millimeter-wave system for hidden objects detection by non-collaborative screening", Proc. SPIE 8022, Passive Millimeter-Wave Imaging Technology XIV, 802209 (26 May 2011); https://doi.org/10.1117/12.886452
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