Improved reconstruction and sensing techniques for personnel screening in three-dimensional cylindrical millimeter-wave portal scanning

Justin L. Fernandes; Carey M. Rappaport; David M. Sheen

doi:10.1117/12.887612

26 May 2011 Improved reconstruction and sensing techniques for personnel screening in three-dimensional cylindrical millimeter-wave portal scanning

Justin L. Fernandes, Carey M. Rappaport, David M. Sheen

Author Affiliations +

Proceedings Volume 8022, Passive Millimeter-Wave Imaging Technology XIV; 802205 (2011) https://doi.org/10.1117/12.887612
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

The cylindrical millimeter-wave imaging technique, developed at Pacific Northwest National Laboratory (PNNL) and commercialized by L-3 Communications/Safeview in the ProVision system, is currently being deployed in airports and other high-security locations to meet person-borne weapon and explosive detection requirements. While this system is efficient and effective in its current form, there are a number of areas in which the detection performance may be improved through the use of other reconstruction algorithms and sensing configurations. PNNL and Northeastern University (NEU) have teamed together to investigate higher-order imaging artifacts produced by the current cylindrical millimeter-wave imaging technique using full-wave forward modeling and laboratory experimentation. Based on imaging results and scattered-field visualizations using the full-wave forward model, a new imaging system is proposed. The new system combines a multistatic sensor configuration with the generalized synthetic aperture focusing technique (GSAFT). Initial results show an improved ability to image in areas of the body where target shading, specular reflections, and higher-order reflections occur.

Citation Download Citation

Justin L. Fernandes, Carey M. Rappaport, and David M. Sheen "Improved reconstruction and sensing techniques for personnel screening in three-dimensional cylindrical millimeter-wave portal scanning", Proc. SPIE 8022, Passive Millimeter-Wave Imaging Technology XIV, 802205 (26 May 2011); https://doi.org/10.1117/12.887612

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