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Proceedings Paper

Effect of jitter on an imaging FTIR spectrometer
Author(s): Charles L. Bennett
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Paper Abstract

Line of sight (LOS) jitter produces temporal modulations of the signals which are detected in the focal plane of a temporally modulated imaging Fourier Transform Spectrometer. A theoretical treatment of LOS jitter effects is given, and is compared with the results of measurements with LIFTIRS (the Livermore Imaging Fourier Transform InfraRed Spectrometer). The identification, isolation, quantification and removal of jitter artifacts in hyperspectral imaging data by means of principal components analysis is discussed. The theoretical distribution of eigenvalues expected from principal components analysis is used to determine the level of significance of spatially coherent instrumental artifacts in general, including jitter as a representative example. It is concluded that an imaging FTIR spectrometer is much less seriously impacted by a given LOS jitter level than a non imaging FTIR spectrometer.

Paper Details

Date Published: 16 June 1997
PDF: 11 pages
Proc. SPIE 3063, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing VIII, (16 June 1997); doi: 10.1117/12.276066
Show Author Affiliations
Charles L. Bennett, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 3063:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing VIII
Gerald C. Holst, Editor(s)

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