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A compact mmW imaging radiometer for concealed weapon detection

Ein kompaktes bildgebendes Millimeterwellen-Radiometer zur Detektion von versteckt getragenen Waffen
: Nötel, D.; Huck, J.; Neubert, S.; Wirtz, S.; Tessmann, A.

Institute of Electrical and Electronics Engineers -IEEE-:
IRMMW-THz 2007, Joint 32nd International Conference on Infrared and Millimeter Waves, and 15th International Conference on Terahertz Electronics : City Hall, Cardiff, UK, 3rd - 7rd September, 2007
New York, NY: IEEE, 2007
ISBN: 1-4244-1439-3
International Conference on Infrared and Millimetre Waves <32, 2007, Cardiff>
International Conference on Terahertz Electronics <15, 2007, Cardiff>
Conference Paper
Fraunhofer IAF ()
Fraunhofer FHR
concealed weapon detection (CWD); Detektion versteckter Waffen; passive imaging; passives Bildgebungsverfahren; MMIC; W-Band; radiometer; low-noise amplifier (LNA); rauscharmer Verstärker; superresolution algorithm; Superauflösungs Algorithmus

Concealed weapon detection based on passive millimeter wave imaging requires a high special resolution to achieve useful output. In order to meet this requirement while decreasing the overall imaging time, the approach presented here employs a mechanically scanned focal plane array at 94 GHz. In this paper, details about a four-channel scanning radiometer setup are given using a novel compact W-band receiver. Finally, the measured data alongside with the required channel equalization and superresolution-based image enhancement are discussed.