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Proceedings Paper

Real time standoff gas detection and environmental monitoring with LWIR hyperspectral imager
Author(s): Florent Prel; Louis Moreau; Hugo Lavoie; François Bouffard; Jean-Marc Thériault; Christian Vallieres; Claude Roy; Denis Dubé
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Paper Abstract

MR-i is a dual band Hyperspectral Imaging Spectro-radiometer. This field instrument generates spectral datacubes in the MWIR and LWIR. MR-i is modular and can be configured in different ways. One of its configurations is optimized for the standoff measurements of gases in differential mode. In this mode, the instrument is equipped with a dual-input telescope to perform optical background subtraction. The resulting signal is the differential between the spectral radiance entering each input port. With that method, the signal from the background is automatically removed from the signal of the target of interest. The spectral range of this configuration extends in the VLWIR (cut-off near 14 μm) to take full advantage of the LW atmospheric window.

Paper Details

Date Published: 30 October 2012
PDF: 12 pages
Proc. SPIE 8546, Optics and Photonics for Counterterrorism, Crime Fighting, and Defence VIII, 85460I (30 October 2012); doi: 10.1117/12.974747
Show Author Affiliations
Florent Prel, ABB Inc. (Canada)
Louis Moreau, ABB Inc. (Canada)
Hugo Lavoie, Defence Research and Development Canada, Valcartier (Canada)
François Bouffard, Defence Research and Development Canada, Valcartier (Canada)
Jean-Marc Thériault, Defence Research and Development Canada, Valcartier (Canada)
Christian Vallieres, ABB Inc. (Canada)
Claude Roy, ABB Inc. (Canada)
Denis Dubé, Defence Research and Development Canada, Valcartier (Canada)


Published in SPIE Proceedings Vol. 8546:
Optics and Photonics for Counterterrorism, Crime Fighting, and Defence VIII
Colin Lewis; Douglas Burgess, Editor(s)

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