300 GHz imaging with 8 meter stand-off distance and one-dimensional synthetic image reconstruction

Andreas Keil, Holger Quast, Torsten Loeffler, Viktor Krozer, Jørgen Dall, Anders Kusk, Thomas Jensen, Vitaliy Zhurbenko, Peter de Maagte

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


An active system for stand-off imaging operating in a frequency range from 234 GHz to 306 GHz is presented. Imaging is achieved by combining a line array consisting of 8 emitters and 16 detectors with a scanning cylindrical mirror system. A stand-off distance of 7-8 m is achieved using a system of mirrors with effective aperture of 0.5 × 0.5 meter. Information about range and reflectivity of the object are obtained using an active FMCW (frequency modulated continuous wave) radar operation principle. Data acquisition time for one line is as short as 1 ms. Synthetic image reconstruction is achieved in real-time by an embedded GPU (Graphical Processing Unit).
Original languageEnglish
Title of host publicationProceedings of SPIE : The International Society for Optical Engineering
EditorsDavid A. Wikner, Arttu R. Luukanen
PublisherSPIE - International Society for Optical Engineering
Publication date2011
ISBN (Print)9780819485960
Publication statusPublished - 2011
EventPassive Millimeter-Wave Imaging Technology XIV - Orlando, Florida, USA
Duration: 1 Jan 2011 → …


ConferencePassive Millimeter-Wave Imaging Technology XIV
CityOrlando, Florida, USA
Period01/01/2011 → …


  • Synthetic-aperture imaging
  • FMCW
  • Millimeter-wave imaging
  • Body scanner


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