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Proceedings Paper

HYDICE postflight data processing
Author(s): William S. Aldrich; Mary E. Kappus; Ronald G. Resmini; Peter A. Mitchell
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Paper Abstract

The hyperspectral digital imagery collection experiment (HYDICE) sensor records instrument counts for scene data, in-flight spectral and radiometric calibration sequences, and dark current levels onto an AMPEX DCRsi data tape. Following flight, the HYDICE ground data processing subsystem (GDPS) transforms selected scene data from digital numbers (DN) to calibrated radiance levels at the sensor aperture. This processing includes: dark current correction, spectral and radiometric calibration, conversion to radiance, and replacement of bad detector elements. A description of the algorithms for post-flight data processing is presented. A brief analysis of the original radiometric calibration procedure is given, along with a description of the development of the modified procedure currently used. Example data collected during the 1995 flight season, but uncorrected and processed, are shown to demonstrate the removal of apparent sensor artifacts (e.g., non-uniformities in detector response over the array) as a result of this transformation.

Paper Details

Date Published: 17 June 1996
PDF: 10 pages
Proc. SPIE 2758, Algorithms for Multispectral and Hyperspectral Imagery II, (17 June 1996); doi: 10.1117/12.243230
Show Author Affiliations
William S. Aldrich, Science Applications International Corp. (United States)
Mary E. Kappus, Science Applications International Corp. (United States)
Ronald G. Resmini, Science Applications International Corp. (United States)
Peter A. Mitchell, Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 2758:
Algorithms for Multispectral and Hyperspectral Imagery II
A. Evan Iverson, Editor(s)

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