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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), pp. 382-385. European Conference on Synthetic Aperture Radar (EUSAR), 2014-06-02 - 2014-06-06, Berlin, Germany.

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Abstract

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.

Item URL in elib:https://elib.dlr.de/90696/
Document Type:Conference or Workshop Item (Poster)
Title:Comparsion of Absolute Radiometric Transponder Calibration Strategies
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Raab, SebastianUNSPECIFIEDUNSPECIFIED
Döring, Björn J.UNSPECIFIEDUNSPECIFIED
Jirousek, MatthiasUNSPECIFIEDUNSPECIFIED
Reimann, JensUNSPECIFIEDUNSPECIFIED
Rudolf, DanielUNSPECIFIEDUNSPECIFIED
Schwerdt, MarcoUNSPECIFIEDUNSPECIFIED
Date:June 2014
Journal or Publication Title:Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 382-385
Status:Published
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: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 - Projekt TanDEM-X
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Spaceborne SAR Systems
Microwaves and Radar Institute > Reconnaissance and Security
Deposited By: Raab, M. Eng. Sebastian
Deposited On:20 Oct 2014 10:58
Last Modified:31 Jul 2019 19:48

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