A prototype active wideband 350 GHz imaging system has been developed to address the urgent need for standoff concealed weapon detection. This system is based on a wideband, heterodyne, frequency-multiplier-based transceiver system coupled to a quasi-optical focusing system and high-speed conical scanner. This system is able to quickly scan personnel for concealed weapons. Additionally, due to the wideband operation, this system provides accurate ranging information, and the images obtained are fully three-dimensional. In this paper, the imaging system is described in detail and numerous imaging results are presented.
Revised: September 15, 2010 |
Published: April 1, 2009
Citation
Sheen D.M., T.E. Hall, R.H. Severtsen, D.L. McMakin, B.K. Hatchell, and P.L. Valdez. 2009.Active Wideband 350 GHZ Imaging System for Concealed Weapon Detection. In Passive Millimeter-Wave Imaging Technology XII, edited by R Appleby and DA Wikner, 7309, Paper No. 73090I. Bellingham, Washington:SPIE. PNWD-SA-8547. doi:10.1117/12.817927