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Characterization of Integrating Sphere Homogeneity with an Uncalibrated Imaging Spectrometer

Baumgartner, Andreas (2013) Characterization of Integrating Sphere Homogeneity with an Uncalibrated Imaging Spectrometer. In: Proc. WHISPERS 2013, pp. 1-4. WHISPERS 2013, 2013-06-25 - 2013-06-28, Gainsville, Florida, USA. doi: 10.1109/WHISPERS.2013.8080735.

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Official URL: http://core.ieee-whispers.com/index.php?option=com_content&view=article&id=210&Itemid=54


The radiometric calibration of imaging spectrometers is usually performed using integrating spheres as light sources. Their homogeneities are usually defined for the entrance aperture. As airborne hyperspectral sensors are focused on infinity, the calibration of such sensors is done in a way which is not well defined. In this paper, a method is shown which allows the characterization of integrating spheres with a radiometrically uncalibrated hyperspectral sensor. The sphere is characterized in the same way as it is used for the calibration of hyperspectral sensors. This allows the determination of the relative uncertainty of radiometric measurements due to inhomogeneities. Also, the relative radiometric response of the sensor can be derived at the same time. The method is demonstrated exemplarily with a HySpex VNIR-1600, an airborne imaging spectrometer system from Norsk Elektro Optikks A/S (NEO).

Item URL in elib:https://elib.dlr.de/83300/
Document Type:Conference or Workshop Item (Speech)
Title:Characterization of Integrating Sphere Homogeneity with an Uncalibrated Imaging Spectrometer
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Baumgartner, AndreasUNSPECIFIEDhttps://orcid.org/0000-0002-8495-5407139186151
Date:25 June 2013
Journal or Publication Title:Proc. WHISPERS 2013
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-4
Keywords:Integrating Sphere, Homogeneity, Hyperspectral, Calibration, Spectrometer, HySpex, CHB
Event Title:WHISPERS 2013
Event Location:Gainsville, Florida, USA
Event Type:international Conference
Event Start Date:25 June 2013
Event End Date:28 June 2013
Organizer:University of Florida
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Vorhaben Spektrometrische Verfahren und Konzepte der Fernerkundung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Experimental Methods
Deposited By: Baumgartner, Andreas
Deposited On:10 Jul 2013 10:02
Last Modified:24 Apr 2024 19:49

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