Pupil Plane Array Based Millimeter-Wave Imaging Radiometer
Abstract
The work performed under this contract was related to the testing and procurement of the phase and, in particular, frequency processor boards that are needed in Trex Enterprises' second generation real-time passive millimeter-wave camera (PMC). In addition, an imaging demonstration performed under this contract demonstrated the feasibility of building such a PMC and that it is possible to obtain near diffraction limited imagery. The Trex Enterprises Corporation's PMC imager uses a patented flat panel antenna and millimeter-wave signal processors to enable a 30 by 20 degree instantaneous field of view true real time (30 Hz) sensor with a 2 Kelvin instantaneous thermal sensitivity, to be built in a highly compact package suitable for concealed weapons detection. The millimeter-wave (MMW) portion of the electromagnetic spectrum is chosen as it offers a good balance between clothing penetration as well as resolution and, therefore, allows compact, practical sized systems suitable for law enforcement to be built. By measuring only natural thermal emissions (from living beings and inanimate objects), and reflections of natural ambient sources (such as the cold sky), passive millimeter-wave imaging is intrinsically safe and suitable for imaging people.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 2004
- Accession Number
- ADA422603
Entities
People
- Chris Martin
- John Lovberg
- John Mccoy
- Stuart Clark
- Vladimir Kolinko