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Analysis of an Improved Temperature Management Concept for SAR System Calibration Transponders

Raab, Sebastian and Döring, Björn J. and Rudolf, Daniel and Reimann, Jens and Schwerdt, Marco (2016) Analysis of an Improved Temperature Management Concept for SAR System Calibration Transponders. In: Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR). European Conference on Synthetic Aperture Radar (EUSAR), 2016-06-06 - 2016-06-09, Hamburg, Germany.

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Abstract

For the radiometric calibration of spaceborne synthetic aperture radar systems, active targets with known backscatter, so called transponders, are used. These serve as an external absolute reference, and the quality of the derived calibration parameters depends on the quality of the deployed transponders. Due to the temperature dependent behavior of the implemented active radio frequency components the transponder radar cross section is sensitive to the temperature of the components. This effect requires the implementation of a reliable and precise temperature management System to stabilize the temperature of the radio frequency components to a constant value under all relevant environmental conditions. In order to fulfill the increasing requirements for future transponders towards radiometric accuracy new temperature control concepts must be developed. For this purpose, existing temperature management systems are analyzed and a promising concept is investigated. In the final version of this paper the results of measurements in a climatic chamber are presented in order to analyze the performance of the new control concept.

Item URL in elib:https://elib.dlr.de/102613/
Document Type:Conference or Workshop Item (Poster)
Title:Analysis of an Improved Temperature Management Concept for SAR System Calibration Transponders
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Raab, SebastianUNSPECIFIEDUNSPECIFIED
Döring, Björn J.UNSPECIFIEDUNSPECIFIED
Rudolf, DanielUNSPECIFIEDUNSPECIFIED
Reimann, JensUNSPECIFIEDUNSPECIFIED
Schwerdt, MarcoUNSPECIFIEDUNSPECIFIED
Date:June 2016
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
Status:Published
Keywords:SAR, calibration, transponder temperature control,
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Hamburg, Germany
Event Type:international Conference
Event Dates:2016-06-06 - 2016-06-09
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 - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Datenvisualisierung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Raab, M. Eng. Sebastian
Deposited On:28 Jan 2016 08:44
Last Modified:31 Jul 2019 19:59

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