Martone, Michele und Bräutigam, Benjamin und Krieger, Gerhard (2015) Quantization Effects in TanDEM-X Data. IEEE Transactions on Geoscience and Remote Sensing, 53 (2), Seiten 583-597. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TGRS.2014.2325976. ISSN 0196-2892.
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Kurzfassung
TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement) is an innovative space-borne bistatic synthetic aperture radar (SAR) system comprising the twin satellites TerraSAR-X and TanDEM-X. The primary objective of the mission is the generation of a worldwide, timely, and consistent digital elevation model (DEM) in bistatic SAR configuration with an unprecedented accuracy. For TanDEM-X, as well as for future space-borne SAR missions, an increasing volume of on-board data is going to be demanded. This is due to the employment of large bandwidths, high PRFs, and multiple polarizations, which implies inevitably hard requirements in terms of on-board memory and downlink capacity. In this scenario, SAR raw data quantization represents an essential aspect. The data rate employed for the digitization of the recorded radar signal affects both the amount of data to be stored and transmitted to the ground and the quality of the resulting SAR products. In this paper, the impact of quantization on TanDEM-X monostatic and interferometric data is evaluated. Key quantities in estimating interferometric and SAR performance, like coherence and phase errors, are investigated in detail. Based on the obtained results, an optimization of the resource allocation strategy for the global DEM acquisition of TanDEM-X is discussed.
elib-URL des Eintrags: | https://elib.dlr.de/86510/ | ||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||
Titel: | Quantization Effects in TanDEM-X Data | ||||||||||||||||
Autoren: |
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Datum: | Februar 2015 | ||||||||||||||||
Erschienen in: | IEEE Transactions on Geoscience and Remote Sensing | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Ja | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||
Band: | 53 | ||||||||||||||||
DOI: | 10.1109/TGRS.2014.2325976 | ||||||||||||||||
Seitenbereich: | Seiten 583-597 | ||||||||||||||||
Verlag: | IEEE - Institute of Electrical and Electronics Engineers | ||||||||||||||||
ISSN: | 0196-2892 | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | Synthetic aperture radar (SAR), SAR interferometry (InSAR), TanDEM-X mission, block adaptive quantization (BAQ). | ||||||||||||||||
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 Hochfrequenztechnik und Radarsysteme > Radarkonzepte Institut für Hochfrequenztechnik und Radarsysteme > Satelliten-SAR-Systeme | ||||||||||||||||
Hinterlegt von: | Martone, Michele | ||||||||||||||||
Hinterlegt am: | 10 Dez 2013 11:07 | ||||||||||||||||
Letzte Änderung: | 28 Nov 2023 08:37 |
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