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19 July 2012 Noise sources in imaging static Fourier transform spectrometers
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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.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2012/$25.00 © 2012 SPIE
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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