30 October 2012 Real time standoff gas detection and environmental monitoring with LWIR hyperspectral imager
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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.
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Florent Prel, Florent Prel, Louis Moreau, Louis Moreau, Hugo Lavoie, Hugo Lavoie, François Bouffard, François Bouffard, Jean-Marc Thériault, Jean-Marc Thériault, Christian Vallieres, Christian Vallieres, Claude Roy, Claude Roy, Denis Dubé, 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); doi: 10.1117/12.974747; https://doi.org/10.1117/12.974747
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