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Proceedings Paper

Calibration facility for airborne imaging spectrometers
Author(s): Birgit Suhr; Peter Gege; Jens Nieke; Klaus Itten; Gerd Ulbrich
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Paper Abstract

ESA currently builds the airborne hyper-spectral push broom imaging spectrometer APEX (Airborne Prism EXperiment) operating in the spectral range from 380 to 2500 nm. In the scope of the APEX project a large variety of characterization measurements will be performed, e.g., on-board characterization, frequent laboratory characterization, and vicarious calibration. The APEX instrument will only achieve its challenging measurement accuracy by regular calibration of the instrument between flight cycles. For that on-ground characterisation, a dedicated characterisation and calibration facility is necessary to enable a comprehensive and accurate calibration of the instrument. In view of the high relevance to scientific objectives, ESA is funding an external "Calibration Home Base" (CHB). It is located at DLR Oberpfaffenhofen and will be operational from 2006 on. The CHB provides all hard- and software tools required for radiometric, spectral and geometric on-ground characterisation and calibration of the instrument and its internal references and on-board attachments, and to perform measurements on polarisation- and straylight-sensitivity. This includes a test bed and the provision of the infrastructure. In this paper the calibration equipment and concept is outlined.

Paper Details

Date Published: 21 October 2005
PDF: 9 pages
Proc. SPIE 5978, Sensors, Systems, and Next-Generation Satellites IX, 59780R (21 October 2005); doi: 10.1117/12.646691
Show Author Affiliations
Birgit Suhr, DLR (Germany)
Peter Gege, DLR (Germany)
Jens Nieke, Univ. Zürich (Switzerland)
Klaus Itten, Univ. Zürich (Switzerland)
Gerd Ulbrich, ESA/ESTEC (Netherlands)


Published in SPIE Proceedings Vol. 5978:
Sensors, Systems, and Next-Generation Satellites IX
Roland Meynart; Steven P. Neeck; Haruhisa Shimoda, Editor(s)

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