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MERTIS - Shutterless Background Signal Removal

Säuberlich, Thomas and Paproth, Carsten and Helbert, Jörn (2010) MERTIS - Shutterless Background Signal Removal. In: Infrared Remote Sensing and Instrumentation XVIII, 7808. SPIE. SPIE Optics + Photonics 2010, 01.-05. Aug. 2010, San Diego, USA. ISBN 9780819483041

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MERTIS (MERcury Thermal infrared Imaging Spectrometer) is an advanced infrared remote sensing instrument that is part of the ESA mission BepiColombo to planet Mercury. The enabling technology that allows sending the first spectrometer for the thermal infrared spectral range to Mercury is an uncooled microbolometer. One of the challenges is the calibration of the instrument. Radiometric and spectroscopic breadboard models of MERTIS were used to develop proper calibration methods. In the context of the calibration we are reporting on the ongoing efforts to separate non-scene and scene signal portions from each other. The non-scene signal portion is contained in the raw image data sets and is usually the dominating signal contribution. The conventional method to measure the non-scene signal contributions using a shutter or space-view and perform a time-interpolation is compared to an approach using linear pixel-to-pixel relations in which information from the outer regions of the image matrix is used for the estimation of the non-scene signal components of the inner regions where additional scene signal components exist. The results of both methods are discussed in terms of noise or errors of the extracted scene information. The proposed method could be used without further instrument modifications offering a functional redundancy which is important to keep alive the MERTIS operation in the case of a breakdown of the mechanically stressed high-speed shutter device.

Item URL in elib:https://elib.dlr.de/65027/
Document Type:Conference or Workshop Item (Speech, Paper)
Additional Information:doi:10.1117/12.860592
Title:MERTIS - Shutterless Background Signal Removal
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Säuberlich, Thomasthomas.saeuberlich (at) dlr.deUNSPECIFIED
Paproth, Carstencarsten.paproth (at) dlr.deUNSPECIFIED
Helbert, Jörnjoern.helbert (at) dlr.deUNSPECIFIED
Date:August 2010
Journal or Publication Title:Infrared Remote Sensing and Instrumentation XVIII
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Strojnik, Marija UNSPECIFIED
Series Name:Proceedings of SPIE
Keywords:thermal infrared, background signal removal, shutterless operation, noise, microbolometer
Event Title:SPIE Optics + Photonics 2010
Event Location:San Diego, USA
Event Type:international Conference
Event Dates:01.-05. Aug. 2010
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben BepiColombo (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research
Optical Information Systems
Deposited By: Dombrowski, Ute
Deposited On:24 Aug 2010 14:57
Last Modified:25 Oct 2012 13:39

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