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TerraSAR X Internal Calibration Experience and Extension for TanDEM X

Hueso Gonzalez, Jaime and Bräutigam, Benjamin and Schwerdt, Marco and Bachmann, Markus (2008) TerraSAR X Internal Calibration Experience and Extension for TanDEM X. In: Proceedings of Committee on Earth Observation Satellites (CEOS) Workshop. Committee on Earth Observation Satellites (CEOS) Workshop, 2008-11-27 - 2008-11-28, Oberpfaffenhofen, Germany.

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Abstract

TerraSAR X is a high resolution synthetic aperture radar (SAR) satellite that was launched in 2007. Its twin satellite TanDEM X will join the mission on the second half of 2009, flying in a close helix formation, which will extend the acquisition capabilities of the system. Both satellites have identical active phased array X-Band antennas, each with 384 transmit/receive modules (TRMs) controlling the beam steering in azimuth and elevation. A calibration network provides monitoring of internal instrument behaviour by introducing additional calibration pulses. The proper evaluation of these calibration pulses for every acquisition guarantees high radiometric stability of all SAR products. The experience of TerraSAR X will be directly applied to the monostatic internal calibration of TanDEM X. However, bistatic acquisitions set a new challenge for the instrument calibration, and require an extension of the current techniques. This paper will summarize the most important results of the TerraSAR X instrument calibration and will propose some extensions for the bistatic operation mode.

Document Type:Conference or Workshop Item (Speech)
Title:TerraSAR X Internal Calibration Experience and Extension for TanDEM X
Authors:
AuthorsInstitution or Email of Authors
Hueso Gonzalez, JaimeUNSPECIFIED
Bräutigam, BenjaminUNSPECIFIED
Schwerdt, MarcoUNSPECIFIED
Bachmann, MarkusUNSPECIFIED
Date:November 2008
Journal or Publication Title:Proceedings of Committee on Earth Observation Satellites (CEOS) Workshop
Refereed publication:No
In ISI Web of Science:No
Status:Published
Keywords:Internal Calibration, TerraSAR-X, TanDEM-X, Bi-static, Mono-static, Instrument replica, calibration pulses
Event Title:Committee on Earth Observation Satellites (CEOS) Workshop
Event Location:Oberpfaffenhofen, Germany
Event Type:international Conference
Event Dates:2008-11-27 - 2008-11-28
Organizer:DLR
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), W - Projekt TanDEM-X (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Jaime Hueso Gonzalez
Deposited On:15 Dec 2008
Last Modified:12 Dec 2013 20:34

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