Lachaise, Marie und Fritz, Thomas und Bamler, Richard (2018) The Dual-Baseline Phase Unwrapping Correction framework for the TanDEM-X Mission Part 1: Theoretical description and algorithms. IEEE Transactions on Geoscience and Remote Sensing, 56 (2), Seiten 780-798. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TGRS.2017.2754923. ISSN 0196-2892.
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Offizielle URL: http://ieeexplore.ieee.org/document/8064174/
Kurzfassung
The TanDEM-X mission is the first free flying bistatic SAR mission. It has the primary objective to generate within a short time frame a global DEM of 10 m absolute vertical accuracy and 2 m relative height accuracy. For that, the whole land mass has been mapped at least twice with different baselines. The success of the mission depends on the accuracy of the final DEM and therefore on the reliability of the Phase Unwrapping (PU) algorithm. Hence, a robust and versatile PU method, which is in accordance with the acquisition concept, is necessary. This paper presents a new method which combines bistatic high-resolution interferometric data in order to perform an accurate phase unwrapping on a huge amount of data. The Dual- Baseline Phase Unwrapping Correction (DB-PUC) framework addresses this challenge by correcting errors that occurred during the single-baseline PU procedure. It benefits from the additional information available through the differential interferogram and the stereo-radargrammetric phase, which are used to correct region-wise the ambiguity bands of the misestimated unwrapped phases to be less sensitive to noise and possible temporal changes. The multi-level of the DB-PUC approach makes it flexible, computationally efficient and well adapted to deal with the various PU error scenarios. This framework is used operationally for the processing of the data of the TanDEM-X Mission.
elib-URL des Eintrags: | https://elib.dlr.de/120311/ | ||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||
Titel: | The Dual-Baseline Phase Unwrapping Correction framework for the TanDEM-X Mission Part 1: Theoretical description and algorithms | ||||||||||||||||
Autoren: |
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Datum: | 2018 | ||||||||||||||||
Erschienen in: | IEEE Transactions on Geoscience and Remote Sensing | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Nein | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||
Band: | 56 | ||||||||||||||||
DOI: | 10.1109/TGRS.2017.2754923 | ||||||||||||||||
Seitenbereich: | Seiten 780-798 | ||||||||||||||||
Verlag: | IEEE - Institute of Electrical and Electronics Engineers | ||||||||||||||||
ISSN: | 0196-2892 | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | InSAR, TanDEM-X Mission, MCF, dualbaseline phase unwrapping, error correction. | ||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||
HGF - Programmthema: | Erdbeobachtung | ||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||
DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Projekt TanDEM-X (alt) | ||||||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||||||
Institute & Einrichtungen: | Institut für Methodik der Fernerkundung > SAR-Signalverarbeitung Institut für Methodik der Fernerkundung > Leitungsbereich MF | ||||||||||||||||
Hinterlegt von: | Lachaise, Dr Marie | ||||||||||||||||
Hinterlegt am: | 13 Jun 2018 14:13 | ||||||||||||||||
Letzte Änderung: | 08 Nov 2023 14:49 |
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