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Proceedings Paper

Airborne infrared-hyperspectral mapping for detection of gaseous and solid targets
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Paper Abstract

Airborne hyperspectral ground mapping is being used in an ever-increasing extent for numerous applications in the military, geology and environmental fields. The different regions of the electromagnetic spectrum help produce information of differing nature. The visible, near-infrared and short-wave infrared radiation (400 nm to 2.5 μm) has been mostly used to analyze reflected solar light, while the mid-wave (3 to 5 μm) and long-wave (8 to 12 μm or thermal) infrared senses the self-emission of molecules directly, enabling the acquisition of data during night time. The Telops Hyper-Cam is a rugged and compact infrared hyperspectral imager based on the Fourier-transform technology. It has been used on the ground in several field campaigns, including the demonstration of standoff chemical agent detection. More recently, the Hyper-Cam has been integrated into an airplane to provide airborne measurement capabilities. The technology offers fine spectral resolution (up to 0.25 cm-1) and high accuracy radiometric calibration (better than 1 degree Celsius). Furthermore, the spectral resolution, spatial resolution, swath width, integration time and sensitivity are all flexible parameters that can be selected and optimized to best address the specific objectives of each mission. The system performance and a few measurements have been presented in previous publications. This paper focuses on analyzing additional measurements in which detection of fertilizer and Freon gas has been demonstrated.

Paper Details

Date Published: 5 May 2010
PDF: 10 pages
Proc. SPIE 7665, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI, 766516 (5 May 2010); doi: 10.1117/12.850304
Show Author Affiliations
E. Puckrin, Defence Research and Development Canada (Canada)
C. S. Turcotte, Defence Research and Development Canada (Canada)
P. Lahaie, Defence Research and Development Canada (Canada)
D. Dubé, Defence Research and Development Canada (Canada)
V. Farley, Telops Inc. (Canada)
P. Lagueux, Telops Inc. (Canada)
F. Marcotte, Telops Inc. (Canada)
M. Chamberland, Telops Inc. (Canada)


Published in SPIE Proceedings Vol. 7665:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI
Augustus Way Fountain; Patrick J. Gardner, Editor(s)

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