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Proceedings Paper

Wavelength calibration and instrument line shape estimation of a LWIR hyperspectral sensor from in-scene data
Author(s): Robert D. Kaiser
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Paper Abstract

Estimates have been made of wavelength calibration and instrument line shape (ILS) for the SEBASS hyperspectral sensor. FASCODE estimates of at-sensor radiance were made, convolved with gaussian or triangular ILS functions of various widths, had slight wavelength shifts introduced and were downsampled to SEBASS wavelengths. The downsampled FASCODE estimates were compared to measured data for 21 atmospheric absorption features between 8-13 um. The combination of ILS width and wavelength shift providing the best match was recorded. The technique was sensitive to wavelength calibration, but relatively insensitive to ILS width. Results demonstrated that SEBASS wavelength calibration was within +/- 0.5 channel widths.

Paper Details

Date Published: 23 August 2000
PDF: 4 pages
Proc. SPIE 4049, Algorithms for Multispectral, Hyperspectral, and Ultraspectral Imagery VI, (23 August 2000); doi: 10.1117/12.410350
Show Author Affiliations
Robert D. Kaiser, Spectral Information Technology Applications Ctr. (United States)


Published in SPIE Proceedings Vol. 4049:
Algorithms for Multispectral, Hyperspectral, and Ultraspectral Imagery VI
Sylvia S. Shen; Michael R. Descour, Editor(s)

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