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DLR's New Traceable Radiance Standard “RASTA”

Schwarzmaier, Thomas and Baumgartner, Andreas and Gege, Peter and Köhler, Claas and Lenhard, Karim (2012) DLR's New Traceable Radiance Standard “RASTA”. IGARSS 2012, 22.-27. Jul. 2012, München.

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The German Aerospace Center (DLR) operates the Calibation Home Base (CHB) as a facility for the calibration of airborne imaging spectrometers such as APEX, HySpex and ROSIS, and for field spectrometers. Absolute radiometric calibration is performed so far using an integrating sphere that is traceable to SI units through calibration at the German Metrology Institute PTB. However, the stability of the radiance output is not monitored regularily and reliably since the small size (diameter 50 cm, exit port 20 cm x 4 cm) and the design make it difficult to install a device at a reproducible position which is suited to measure accurately changes of the spectral radiance. This drawback was the motivation to develop a new radiance standard (RASTA) which allows monitoring of small changes in the wavelength range from 380 to 2500 nm. The realisation is presented here.

Document Type:Conference or Workshop Item (Poster)
Title:DLR's New Traceable Radiance Standard “RASTA”
AuthorsInstitution or Email of Authors
Schwarzmaier, Thomasthomas.schwarzmaier@dlr.de
Baumgartner, Andreasandreas.baumgartner@dlr.de
Gege, Peterpeter.gege@dlr.de
Köhler, Claasclaas.koehler@dlr.de
Lenhard, Karimkarim.lenhard@dlr.de
Page Range:pp. 1-4
Keywords:Radiance Standard
Event Title:IGARSS 2012
Event Location:München
Event Type:international Conference
Event Dates:22.-27. Jul. 2012
Organizer:IEEE GRSS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Spektrometrische Verfahren und Konzepte der Fernerkundung
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
Deposited By: Thomas Schwarzmaier
Deposited On:31 Oct 2012 12:25
Last Modified:12 Dec 2013 21:49

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