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Noise sources in imaging static Fourier transform spectrometers

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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Contributor : François Goudail Connect in order to contact the contributor
Submitted on : Thursday, October 25, 2012 - 2:42:07 PM
Last modification on : Friday, September 23, 2022 - 5:45:39 PM


  • HAL Id : hal-00745411, version 1


Yann Ferrec, Noura Ayari-Matallah, Pierre Chavel, François Goudail, Hervé Sauer, et al.. Noise sources in imaging static Fourier transform spectrometers. Optical Engineering, SPIE, 2012, 51 (11), pp.111716. ⟨hal-00745411⟩



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