12 May 2016 220GHz wideband 3D imaging radar for concealed object detection technology development and phenomenology studies
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Abstract
We present a 220 GHz 3D imaging ‘Pathfinder’ radar developed within the EU FP7 project CONSORTIS (Concealed Object Stand-Off Real-Time Imaging for Security) which has been built to address two objectives: (i) to de-risk the radar hardware development and (ii) to enable the collection of phenomenology data with ~1 cm3 volumetric resolution. The radar combines a DDS-based chirp generator and self-mixing multiplier technology to achieve a 30 GHz bandwidth chirp with such high linearity that the raw point response is close to ideal and only requires minor nonlinearity compensation. The single transceiver is focused with a 30 cm lens mounted on a gimbal to acquire 3D volumetric images of static test targets and materials.
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Duncan A. Robertson, David G. Macfarlane, Tomas Bryllert, "220GHz wideband 3D imaging radar for concealed object detection technology development and phenomenology studies", Proc. SPIE 9830, Passive and Active Millimeter-Wave Imaging XIX, 983009 (12 May 2016); doi: 10.1117/12.2222780; https://doi.org/10.1117/12.2222780
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