Active MMW multi-parametric imaging technique for security applications

Active millimeter wave (MMW) imaging is currently being considered as a technology that can essentially contribute to security applications in both outdoor and indoor scenarios. Proposed novel active quasi-optical imaging technique being based on multi-parametric encoded illumination of observed scenes adds principally new possibilities for imaging of the scenes. The technique allows to reveal multiple distinctive features of threat objects hidden beneath person clothes that essentially increases probability of object true recognition. The technique is potentially capable to be applied for terahertz imaging as well. In the present work, an experimental set up for MMW multi-parametric quasi-optical imaging in reflective mode was developed. Informative MMW images of different concealed objects including threat ones were obtained.