Real time standoff gas detection and environmental monitoring with LWIR hyperspectral imager

Florent Prel; Louis Moreau; Hugo Lavoie; François Bouffard; Jean-Marc Thériault; Christian Vallieres; Claude Roy; Denis Dubé

doi:10.1117/12.974747

30 October 2012 Real time standoff gas detection and environmental monitoring with LWIR hyperspectral imager

Florent Prel, Louis Moreau, Hugo Lavoie, François Bouffard, Jean-Marc Thériault, Christian Vallieres, Claude Roy, Denis Dubé

Author Affiliations +

Proceedings Volume 8546, Optics and Photonics for Counterterrorism, Crime Fighting, and Defence VIII; 85460I (2012) https://doi.org/10.1117/12.974747
Event: SPIE Security + Defence, 2012, Edinburgh, United Kingdom

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.

Citation Download Citation

Florent Prel, Louis Moreau, Hugo Lavoie, François Bouffard, Jean-Marc Thériault, Christian Vallieres, Claude Roy, and Denis Dubé "Real time standoff gas detection and environmental monitoring with LWIR hyperspectral imager", Proc. SPIE 8546, Optics and Photonics for Counterterrorism, Crime Fighting, and Defence VIII, 85460I (30 October 2012); https://doi.org/10.1117/12.974747

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