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TerraSAR-X Instrument Calibration Results and Extension for TanDEM-X

Bräutigam, Benjamin and Hueso González, Jaime and Schwerdt, Marco and Bachmann, Markus (2010) TerraSAR-X Instrument Calibration Results and Extension for TanDEM-X. IEEE Transactions on Geoscience and Remote Sensing, 48 (2), pp. 702-715. IEEE. DOI: 10.1109/TGRS.2009.2030673.

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Spaceborne remote sensing with synthetic aperture radar (SAR) has become an essential source of high-resolution and continuous earth observation. Modern satellites like the German TerraSAR-X system provide radar images of unprecedented service with respect to operating flexibility and imaging quality. The outstanding performance of TerrSAR-X image products is achieved by an innovative calibration approach that minimizes systematic antenna and instrument characteristics. The active phased array X-Band antenna is fed by 384 transmit/receive modules for electronic beam steering and shaping in azimuth and elevation direction. The flexible radar instrument hosts an internal calibration system which guarantees the high radiometric stability of all SAR products. New techniques for antenna performance control have been successfully implemented setting a high standard for next-generation SAR missions. This paper summarizes all essential calibration results of TerraSAR-X that cover internal instrument behavior. Furthermore, we give an outlook on the required bistatic calibration techniques for the future TanDEM-X mission that faces additional performance challenges when calibrating two TerraSAR-X satellites flying in close formation.

Document Type:Article
Additional Information:©2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE
Title:TerraSAR-X Instrument Calibration Results and Extension for TanDEM-X
AuthorsInstitution or Email of Authors
Bräutigam, BenjaminUNSPECIFIED
Hueso González, JaimeUNSPECIFIED
Schwerdt, MarcoUNSPECIFIED
Bachmann, MarkusUNSPECIFIED
Date:February 2010
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 702-715
Keywords:Calibration, Transmit/Receive Modules, Active Phased Array Antenna, Synthetic Aperture Radar (SAR).
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Projekt TerraSAR-X Kalibration und Projektunterstützung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Benjamin Bräutigam
Deposited On:24 Mar 2009
Last Modified:07 Feb 2013 20:21

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