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Status of DLR's C-band Calibration Transponders and Outlook on an Upgrade for future SAR Missions

Raab, Sebastian and Weidenhaupt, Klaus Frank and Büchner, Anna Maria and Reimann, Jens and Schmidt, Kersten and Schwerdt, Marco (2024) Status of DLR's C-band Calibration Transponders and Outlook on an Upgrade for future SAR Missions. In: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR. European Conference on Synthetic Aperture Radar (EUSAR), 2024-04-23 - 2024-04-26, Munich, Germany.

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Abstract

For more than 25 years, DLR’s SAR Calibration Center has supported the calibration of a large number of spaceborne SAR missions. For ESA’s Sentinel 1 mission, started in 2014, three active reference targets, called “Kalibri” transponders, were developed and manufactured in-house. These transponders were used for an independent calibration of the Sentinel-1A and -1B satellites. Since then, the radiometric and polarimetric calibration of both SAR instruments has been monitored with all three targets by routine overpasses. In order to ensure the availability of the C-band transponders until the end of the mission and to be well prepared for follow-on missions such as Sentinel-1 Next Generation, DLR has already started with the design of a comprehensive facelift of these “Kalibri” transponders. This paper provides an outlook on the planned transponder upgrade and gives an overview of the current status of DLR’s C-band transponder activities.

Item URL in elib:https://elib.dlr.de/198833/
Document Type:Conference or Workshop Item (Speech)
Title:Status of DLR's C-band Calibration Transponders and Outlook on an Upgrade for future SAR Missions
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Raab, SebastianUNSPECIFIEDhttps://orcid.org/0000-0003-4902-5551UNSPECIFIED
Weidenhaupt, Klaus FrankUNSPECIFIEDhttps://orcid.org/0000-0003-2160-8018UNSPECIFIED
Büchner, Anna MariaUNSPECIFIEDhttps://orcid.org/0000-0002-3827-7932UNSPECIFIED
Reimann, JensUNSPECIFIEDhttps://orcid.org/0000-0002-0650-9073UNSPECIFIED
Schmidt, KerstenUNSPECIFIEDhttps://orcid.org/0000-0001-7896-908XUNSPECIFIED
Schwerdt, MarcoUNSPECIFIEDhttps://orcid.org/0000-0002-0045-3726UNSPECIFIED
Date:2024
Journal or Publication Title:Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Status:Accepted
Keywords:SAR, Transponder, Calibration, Reference target, DLR SAR Calibration Center
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Munich, Germany
Event Type:international Conference
Event Dates:2024-04-23 - 2024-04-26
Organizer:VDE
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 - SAR missions
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Deposited By: Raab, M. Eng. Sebastian
Deposited On:07 Nov 2023 11:39
Last Modified:21 Dec 2023 09:52

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