Mitigation of Calibration Ringing in the Context of the MTG-S IRS Instrument

EUMETSAT is currently developing the on-ground processing chain of the infrared sounders (IRS) on-board the Meteosat third-generation sounding satellites (MTG-S). In this context, the authors investigated the impact of a particular type of radiometric error, called hereafter calibration ringing. It...

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Bibliographic Details
Published inRemote sensing (Basel, Switzerland) Vol. 15; no. 11; p. 2873
Main Authors Dussarrat, Pierre, Deschamps, Guillaume, Theodore, Bertrand, Coppens, Dorothee, Standfuss, Carsten, Tournier, Bernard
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 31.05.2023
Subjects
Calibration
Context
Fourier transform spectrometers
Fourier transform spectrometry
Fourier transforms
IRS
Meteosat third generation
Mitigation
principal components
radiometric calibration
Remote sensing
Response functions
ringing
Scientific imaging
Spectral sensitivity
Spectrometers
Statistical analysis
Tax administration and procedure
Transfer functions
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Summary:EUMETSAT is currently developing the on-ground processing chain of the infrared sounders (IRS) on-board the Meteosat third-generation sounding satellites (MTG-S). In this context, the authors investigated the impact of a particular type of radiometric error, called hereafter calibration ringing. It arises in Fourier transform spectrometers when the instrument’s radiometric transfer function (RTF) varies within the domain of the instrument’s spectral response function (SRF). The expected radiometric errors were simulated in the context of the MTG-S IRS instrument in the long-wave infrared (LWIR) band. Making use of a principal components (PCs) decomposition, a software correction, called RTF uniformisation, was designed and its performance was assessed in the context of MTG-S IRS.
ISSN:2072-4292
2072-4292
DOI:10.3390/rs15112873