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Comparsion of Absolute Radiometric Transponder Calibration Strategies

Raab, Sebastian and Döring, Björn J. and Jirousek, Matthias and Reimann, Jens and Rudolf, Daniel and Schwerdt, Marco (2014) Comparsion of Absolute Radiometric Transponder Calibration Strategies. In: Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR). European Conference on Synthetic Aperture Radar (EUSAR), 2014-06-02 - 2014-06-06, Berlin, Germany. (Submitted)

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Spaceborne synthetic aperture radars (SAR) are systems capable of acquiring high-resolution earth-observation data independent on time of day and weather. These SAR systems have to be calibrated before first use and at regular intervals. For these radiometric calibrations active targets with known backscatter, so called transponders, serve as an external reference. For determining the frequency-dependent radar cross section (RCS) of these transponders, different measurement methods are available. This paper gives an overview of four different strategies with a following uncertainty analysis according to the Guide to the expression of uncertainty in measurement (GUM). After comparison with respect to accuracy and feasibility, a recommendation for the best absolute radiometric transponder calibration method is given.

Document Type:Conference or Workshop Item (Speech, Poster)
Title:Comparsion of Absolute Radiometric Transponder Calibration Strategies
AuthorsInstitution or Email of Authors
Raab, SebastianUNSPECIFIED
Jirousek, MatthiasUNSPECIFIED
Schwerdt, MarcoUNSPECIFIED
Journal or Publication Title:Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR)
Refereed publication:Yes
In ISI Web of Science:No
Keywords:calibration; transponder; calibration strategies; comparsion; strategy
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Berlin, Germany
Event Type:international Conference
Event Dates:2014-06-02 - 2014-06-06
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Dipl.-Ing. (FH) Sebastian Raab
Deposited On:10 Dec 2013 10:32
Last Modified:20 Oct 2014 10:58

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