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Interferometric Synthetic Aperture Radar (SAR) Missions Employing Formation Flying

Krieger, Gerhard und Hajnsek, Irena und Papathanassiou, Konstantinos und Younis, Marwan und Moreira, Alberto (2010) Interferometric Synthetic Aperture Radar (SAR) Missions Employing Formation Flying. Proceedings of the IEEE, 98 (5), Seiten 816-843. IEEE. DOI: 10.1109/JPROC.2009.2038948. ISSN 0018-9219.

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Kurzfassung

This paper presents an overview of single-pass interferometric Synthetic Aperture Radar (SAR) missions employing two or more satellites flying in a close formation. The simultaneous reception of the scattered radar echoes from different viewing directions by multiple spatially distributed antennas enables the acquisition of unique Earth observation products for environmental and climate monitoring. After a short introduction to the basic principles and applications of SAR interferometry, designs for the twin satellite missions TanDEM-X and Tandem-L are presented. Primary objective of TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement) is the generation of a global Digital Elevation Model (DEM) with unprecedented accuracy as the basis for a wide range of scientific research, as well as for commercial DEM production. This goal is achieved by enhancing the TerraSAR-X mission with a second TerraSAR-X like satellite that will be launched in spring 2010. Both satellites act then as a large single-pass SAR interferometer with the opportunity for flexible baseline selection. Building upon the experience gathered with the TanDEM-X mission design, the fully polarimetric L-band twin satellite formation Tandem-L is proposed. Important objectives of this highly capable interferometric SAR mission are the global acquisition of 3-D forest structure and biomass inventories, large scale measurements of millimetric displacements due to tectonic shifts, and systematic observations of glacier movements. The sophisticated mission concept and the high data acquisition capacity of Tandem-L will moreover provide a unique data source to systematically observe, analyze and quantify the dynamics of a wide range of additional processes in the bio-, litho-, hydro- and cryosphere. By this, Tandem-L will be an essential step to advance our understanding of the Earth system and its intricate dynamics. Enabling technologies and techniques are described in detail and an outlook on future interferometric and tomographic concepts and developments, including multi-static SAR systems with multiple receivers, is provided.

Dokumentart:Zeitschriftenbeitrag
Titel:Interferometric Synthetic Aperture Radar (SAR) Missions Employing Formation Flying
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Krieger, GerhardNICHT SPEZIFIZIERT
Hajnsek, IrenaNICHT SPEZIFIZIERT
Papathanassiou, KonstantinosNICHT SPEZIFIZIERT
Younis, MarwanNICHT SPEZIFIZIERT
Moreira, AlbertoNICHT SPEZIFIZIERT
Datum:Mai 2010
Erschienen in:Proceedings of the IEEE
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:98
DOI :10.1109/JPROC.2009.2038948
Seitenbereich:Seiten 816-843
Verlag:IEEE
ISSN:0018-9219
Status:veröffentlicht
Stichwörter:Earth Observation, Remote Sensing, Synthetic Aperture Radar (SAR), Interferometry, Digital Beamforming, Formation Flying, Tandem-L, TanDEM-X, Polarimetric SAR Interferometry (PolInSAR), Tomography
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Entwicklung eines Mini-SAR (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme > Radarkonzepte
Institut für Hochfrequenztechnik und Radarsysteme
Hinterlegt von: Dr.-Ing. Gerhard Krieger
Hinterlegt am:28 Dez 2009 18:36
Letzte Änderung:12 Dez 2013 20:49

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