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Proceedings Paper

Terahertz imaging system performance model for concealed weapon identification
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Paper Abstract

The U.S. Army Night Vision and Electronic Sensors Directorate and the U.S. Army Research Laboratory have developed a terahertz-band imaging system performance model for detection and identification of concealed weaponry. The MATLAB-based model accounts for the effects of all critical sensor and display components, and for the effects of atmospheric attenuation, concealment material attenuation, and active illumination. The model is based on recent U.S. Army NVESD sensor performance models that couple system design parameters to observer-sensor field performance using the acquire methodology for weapon identification performance predictions. This THz model has been developed in support of the Defense Advanced Research Project Agencies' Terahertz Imaging Focal-Plane-Array Technology (TIFT) program and is presently being used to guide the design and development of a 0.650 THz active/passive imaging system. This paper will describe the THz model in detail, provide and discuss initial modeling results for a prototype THz imaging system, and outline plans to validate and calibrate the model through human perception testing.

Paper Details

Date Published: 7 November 2005
PDF: 14 pages
Proc. SPIE 5989, Technologies for Optical Countermeasures II; Femtosecond Phenomena II; and Passive Millimetre-Wave and Terahertz Imaging II, 59891E (7 November 2005); doi: 10.1117/12.630877
Show Author Affiliations
Steven R. Murrill, Army Research Lab. (United States)
Eddie L. Jacobs, U.S. Army Night Vision and Electronic Sensors Directorate (United States)
Steven K. Moyer, U.S. Army Night Vision and Electronic Sensors Directorate (United States)
Carl E. Halford, Univ. of Memphis (United States)
Steven T. Griffin, Univ. of Memphis (United States)
Frank C. De Lucia, Ohio State Univ. (United States)
Douglas T. Petkie, Wright State Univ. (United States)
Charmaine C. Franck, Science Applications International Corp. (United States)


Published in SPIE Proceedings Vol. 5989:
Technologies for Optical Countermeasures II; Femtosecond Phenomena II; and Passive Millimetre-Wave and Terahertz Imaging II
Sean M. Kirkpatrick; Razvan Stoian; David H. Titterton; Roger Appleby; J. Martyn Chamberlain; Keith A. Krapels, Editor(s)

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