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Processing of Bistatic TanDEM-X Data

Breit, Helko and Fritz, Thomas and Balss, Ulrich and Eineder, Michael and Yague-Martinez, Nestor and Rossi, Cristian (2010) Processing of Bistatic TanDEM-X Data. In: Proceedings of IEEE IGARSS 2010. IEEE International Geoscience and Remote Sensing Symposium 2010, 25.-30. Jul. 2010, Honolulu, USA.

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Abstract

On June 21st, 2010, the German radar satellite TanDEM-X was launched and successfully placed in an orbit approaching the TerraSAR-X satellite until both systems will fly in close formation and will establish the only available bi-static interferometer in space. The primary TanDEM-X mission goal is to generate a global Digital Elevation Model (DEM) with a relative point-to-point height accuracy of 2 meters for moderate terrain at 12 m posting. For that purpose interferometric SAR data will be acquired over a period of 3 years in parallel to the operational running TerraSAR-X mission. Systematic processing of SAR raw data to so-called Raw-DEMs is performed by one single processing system, the Integrated TanDEM Processor (ITP). The final global DEM is then calibrated and mosaicked by a second system, the Calibration and Mosaicking Processor (MCP). In this paper a short overview of the ITP’s processing functionalities is given, followed by a discussion of the bistatic processing challenges, namely the ultra stable oscillators’ (USO) differential drift estimation, the according timing and phase corrections and the bi-static SAR acquisition geometry.

Document Type:Conference or Workshop Item (Speech)
Title:Processing of Bistatic TanDEM-X Data
Authors:
AuthorsInstitution or Email of Authors
Breit, HelkoMF
Fritz, ThomasMF
Balss, UlrichMF
Eineder, MichaelMF
Yague-Martinez, NestorMF
Rossi, CristianMF
Date:2010
Journal or Publication Title:Proceedings of IEEE IGARSS 2010
Refereed publication:No
In ISI Web of Science:No
Status:Published
Keywords:TanDEM-X, Bistatic SAR, Digital Elevation Model (DEM), SAR Interferometry
Event Title:IEEE International Geoscience and Remote Sensing Symposium 2010
Event Location:Honolulu, USA
Event Type:international Conference
Event Dates:25.-30. Jul. 2010
Organizer:IEEE
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 TanDEM-X (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Helko Breit
Deposited On:11 Aug 2010 08:48
Last Modified:08 May 2014 23:22

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