Noise sources in imaging static Fourier transform spectrometers

Yann Ferrec; Christophe Coudrain; Jérôme Primot; Noura Ayari-Matallah; Pierre H. Chavel; François Goudail; Hervé Sauer; Jean Taboury; Jean-Claude L. Fontanella

doi:10.1117/1.OE.51.11.111716

19 July 2012 Noise sources in imaging static Fourier transform spectrometers

Yann Ferrec, Christophe Coudrain, Jérôme Primot, Noura Ayari-Matallah, Pierre H. Chavel, François Goudail, Hervé Sauer, Jean Taboury, Jean-Claude L. Fontanella

Author Affiliations +

Optical Engineering, Vol. 51, Issue 11, 111716 (July 2012). https://doi.org/10.1117/1.OE.51.11.111716

Abstract

Imaging static Fourier transform spectrometers are well-adapted instruments for remote sensing. However, the path from the raw images to the spectral images is quite long, thus multiplying the potential noise sources. In this article, we propose to review these perturbation sources. We first recall how detector or photon noise on the interferogram affects the estimated spectrum. Then, we focus on inhomogeneities of the focal plane array. Although these inhomogeneities are deterministic, they generate noise when they are ill-corrected. Finally, we describe defects due to errors that may occur during the image processing step. We also give some avenues to limit the impact of these noises.

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Yann Ferrec, Christophe Coudrain, Jérôme Primot, Noura Ayari-Matallah, Pierre H. Chavel, François Goudail, Hervé Sauer, Jean Taboury, and Jean-Claude L. Fontanella "Noise sources in imaging static Fourier transform spectrometers," Optical Engineering 51(11), 111716 (19 July 2012). https://doi.org/10.1117/1.OE.51.11.111716

Published: 19 July 2012

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