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Proceedings Paper

Spectrometer channel characterization for the Airborne Remote Earth Sensor (ARES)
Author(s): James J. Lisowski; Michelle A. Najarian
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Paper Abstract

The ARES (Airborne Remote Earth Sensing) program employs a dual mode instrument for the collection of calibrate IR data. The instrument can be used as either an imaging radiometer (Staring Radiometer), or as an imaging spectrometer (Spatially Scanning Dispersive Spectrometer (SSDS)). In the SSDS mode, the instrument is capable of resolving 75 bands in the 2 micrometers to 6 micrometers region. Spectral separation is achieved by spatial dispersion of incoming radiation across the FPA using a bi-prism. As with other instruments of this type, mechanical and optical imperfections produce errors in spectral registration and radiometric calibrations; non-uniform dispersion by optics and a finite size for the FPA elements produce imperfect bandpass characteristics, most notably channel crosstalk. The methods developed at Lockheed-Martin Advanced Technology Center, the sensor contractors, and at SciTec to characterize the spectral response of each spectrometer channel using a scanned monochromator and normalization algorithms will be discussed.

Paper Details

Date Published: 6 November 1996
PDF: 11 pages
Proc. SPIE 2821, Hyperspectral Remote Sensing and Applications, (6 November 1996); doi: 10.1117/12.257170
Show Author Affiliations
James J. Lisowski, SciTec Inc. (United States)
Michelle A. Najarian, SciTec Inc. (United States)


Published in SPIE Proceedings Vol. 2821:
Hyperspectral Remote Sensing and Applications
Sylvia S. Shen, Editor(s)

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