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SRTM - Results from the Calibration Phase

Eineder, Michael and Adam, Nico and Breit, Helko and Suchandt, Steffen and Holzner, Jürgen and Rabus, Bernd and Knöpfle, Walter (2001) SRTM - Results from the Calibration Phase. In: PIERS 2001 Proceedings, p. 269. PIERS 2001, Osaka, Japan, July 18-22, 2001. ISBN 0-9679674-1-4.

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Abstract

In February 2000 the Shuttle Radar Topography Mission mapped 80% of the earth surface using the first space borne single pass SAR interferometer. On board were two radar systems, a US system operating in C-band and a German/Italian system operating in X-band. At the German Aerospace Center DLR the global X-band data set is processed to a global digital elevation model (DEM). Even if the single pass mode provides better coherence than previous dual pass missions, the high complexity of the system poses a challenging problem when it comes to precise calibration. Since the overall terrain map shall be homogenous all over the world, all electric and geometric subsystems must be characterized precisely. The tasks include synchronizing clocks, and modelling the system's response to changing operation modes, changing temperatures and inevitable motion of the space shuttle platform. In many aspects the SRTM SAR system will be the best known and most precise calibrated SAR sensor flown so far. The paper describes the technical challenges and the techniques applied to isolate the critical parameters. It will show the procedures that were applied to compensate for the mechanical and electrical error sources. Final results will be shown demonstrating the quality and the specific properties of SRTM X-SAR data.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2001,
Title:SRTM - Results from the Calibration Phase
Authors:
AuthorsInstitution or Email of Authors
Eineder, MichaelUNSPECIFIED
Adam, NicoUNSPECIFIED
Breit, HelkoUNSPECIFIED
Suchandt, SteffenUNSPECIFIED
Holzner, JürgenUNSPECIFIED
Rabus, BerndUNSPECIFIED
Knöpfle, WalterUNSPECIFIED
Date:2001
Journal or Publication Title:PIERS 2001 Proceedings
Page Range:p. 269
Editors:
EditorsEmail
The Electromagnetics Academy, UNSPECIFIED
ISBN:0-9679674-1-4
Status:Published
Keywords:SAR Interferometry, Digital Elevation Model, DEM, Shuttle Radar Topography Mission SRTM, Calibration
Event Title:PIERS 2001, Osaka, Japan, July 18-22, 2001
Organizer:The Electromagnetics Academy
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):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
Deposited By: Cornelia Roehl
Deposited On:26 Jan 2006
Last Modified:06 Jan 2010 22:08

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