Accession Number:

ADA422603

Title:

Pupil Plane Array Based Millimeter-Wave Imaging Radiometer

Descriptive Note:

Final rept. Aug 2001-Feb 2003

Corporate Author:

TREX ENTERPRISES SAN DIEGO CA

Report Date:

2004-04-01

Pagination or Media Count:

28.0

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 Corporations 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.

Subject Categories:

  • Electrooptical and Optoelectronic Devices
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE