220GHz wideband 3D imaging radar for concealed object detection technology development and phenomenology studies

Duncan A. Robertson; David G. Macfarlane; Tomas Bryllert

doi:10.1117/12.2222780

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12 May 2016 220GHz wideband 3D imaging radar for concealed object detection technology development and phenomenology studies

Duncan A. Robertson, David G. Macfarlane, Tomas Bryllert

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Proceedings Volume 9830, Passive and Active Millimeter-Wave Imaging XIX; 983009 (2016) https://doi.org/10.1117/12.2222780
Event: SPIE Defense + Security, 2016, Baltimore, Maryland, United States

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, and 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); https://doi.org/10.1117/12.2222780

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