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Fore and Aft Channel Reconstruction in the TerraSAR-X Dual Receive Antenna Mode

Gabele, Martina und Bräutigam, Benjamin und Schulze, Daniel und Steinbrecher, Ulrich und Tous-Ramon, Nuria und Younis, Marwan (2010) Fore and Aft Channel Reconstruction in the TerraSAR-X Dual Receive Antenna Mode. IEEE Transactions on Geoscience and Remote Sensing, 48 (2), Seiten 795-806. IEEE. DOI: 10.1109/TGRS.2009.2032920.

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Kurzfassung

The TerraSAR-X satellite is a high resolution synthetic aperture radar (SAR) system launched in June 2007 which provides the option to split the antenna in along-track direction and sample two physical channels separately. Modern SARs are equipped with active phased array antennas and multiple channels. In order to keep costs low TerraSAR-X uses the redundant receiver unit for the second channel such that fore and aft channel signals are combined by a hybrid coupler to form sum and difference channel data. The dual receive antenna mode can either be used to acquire along-track interferometric data or to acquire signals with different polarizations at the same time (Quad pol). Fore and aft channel reconstruction is necessary if ground moving target indication algorithms such as the displaced phase center antenna technique or along-track interferometry shall be applied, and in order to separate the horizontally and vertically polarized received signal components. The proposed approach uses internal calibration pulses from different calibration beams in order to estimate and compensate the hardware impact. The theoretical framework together with the results from the experimental data evaluation for the fore and aft channel reconstruction of the TerraSAR-X dual receive antenna mode are presented. The impact of the receive hardware transformation matrix estimation accuracy on errors in the reconstructed fore and aft channel image data is studied, and first examples on the ground moving target indication capability of the TerraSAR-X dual receive antenna mode are given.

Dokumentart:Zeitschriftenbeitrag
Zusätzliche Informationen:Ã�©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.
Titel:Fore and Aft Channel Reconstruction in the TerraSAR-X Dual Receive Antenna Mode
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Gabele, MartinaNICHT SPEZIFIZIERT
Bräutigam, BenjaminNICHT SPEZIFIZIERT
Schulze, DanielNICHT SPEZIFIZIERT
Steinbrecher, UlrichNICHT SPEZIFIZIERT
Tous-Ramon, NuriaNICHT SPEZIFIZIERT
Younis, MarwanNICHT SPEZIFIZIERT
Datum:Februar 2010
Erschienen in:IEEE Transactions on Geoscience and Remote Sensing
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:48
DOI :10.1109/TGRS.2009.2032920
Seitenbereich:Seiten 795-806
Verlag:IEEE
Name der Reihe:IEEE Transactions on Geoscience and Remote Sensing
Status:veröffentlicht
Stichwörter:Along-track interferometry (ATI), calibration, dual receive antenna (DRA) mode, ground moving target indication (GMTI), space-based radar, synthetic aperture radar (SAR), TerraSAR-X
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Verkehr
HGF - Programmthema:Verkehrsmanagement
DLR - Schwerpunkt:Verkehr
DLR - Forschungsgebiet:V VM - Verkehrsmanagement
DLR - Teilgebiet (Projekt, Vorhaben):V - ARGOS (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme > Radarkonzepte
Institut für Hochfrequenztechnik und Radarsysteme
Institut für Hochfrequenztechnik und Radarsysteme > Satelliten-SAR-Systeme
Hinterlegt von: Martina Gabele
Hinterlegt am:20 Okt 2009 08:57
Letzte Änderung:12 Dez 2013 20:43

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