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TanDEM-X calibrated Raw DEM generation / C. Rossi in ISPRS Journal of photogrammetry and remote sensing, vol 73 (September 2012)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 73 (September 2012) . - pp 12 - 20 Titre : TanDEM-X calibrated Raw DEM generation Type de document : Article/Communication Auteurs : C. Rossi, Auteur ; Fernando Rodríguez González, Auteur ; T. Fritz, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 12 - 20 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques [Termes IGN] étalonnage de capteur (imagerie) [Termes IGN] image TanDEM-X [Termes IGN] modèle numérique de surface [Termes IGN] traitement d'image radar Résumé : (Auteur) The TanDEM-X mission successfully started on June 21st 2010 with the launch of the German radar satellite TDX, placed in orbit in close formation with the TerraSAR-X (TSX) satellite, and establishing the first spaceborne bistatic interferometer. The processing of SAR raw data to the Raw DEM is performed by one single processor, the Integrated TanDEM-X Processor (ITP). The quality of the Raw DEM is a fundamental parameter for the mission planning. In this paper, a novel quality indicator is derived. It is based on the comparison of the interferometric measure, the unwrapped phase, and the stereo-radargrammetric measure, the geometrical shifts computed in the coregistration stage. By stating the accuracy of the unwrapped phase, it constitutes a useful parameter for the determination of problematic scenes, which will be resubmitted to the dual baseline phase unwrapping processing chain for the mitigation of phase unwrapping errors. The stereo-radargrammetric measure is also operationally used for the Raw DEM absolute calibration through an accurate estimation of the absolute phase offset. This paper examines the interferometric algorithms implemented for the operational TanDEM-X Raw DEM generation, focusing particularly on its quality assessment and its calibration. Numéro de notice : A2012-310 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2012.05.014 Date de publication en ligne : 02/07/2012 En ligne : https://doi.org/10.1016/j.isprsjprs.2012.05.014 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31756 [article]

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Terrasar-X SAR processing and products / H. Breit in IEEE Transactions on geoscience and remote sensing, vol 48 n° 2 (February 2010)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 48 n° 2 (February 2010) . - pp 727 - 740 Titre : Terrasar-X SAR processing and products Type de document : Article/Communication Auteurs : H. Breit, Auteur ; T. Fritz, Auteur ; U. Balss, Auteur ; et al., Auteur Année de publication : 2010 Article en page(s) : pp 727 - 740 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] image radar [Termes IGN] image radar moirée [Termes IGN] image TerraSAR-X [Termes IGN] mode spotlight [Termes IGN] radar à antenne synthétique [Termes IGN] radargrammétrie Résumé : (Auteur) The TerraSAR-X mission was launched in June 2007. After successful completion of the commissioning phase, the mission entered its operational phase in January 2008. Since that time, TerraSAR-X provides the scientific remote sensing community and commercial customers with high-quality spaceborne synthetic aperture radar (SAR) data products. The intention of this paper is to present the SAR data processing concept and the comprehensive portfolio of products reflecting the instrument's diverse imaging capabilities together with options of processing and achieved product quality as well as the essentials of SAR processing. Furthermore, it shall also provide details on how to fully exploit the precision of the TerraSAR-X products. Copyright IEEE Numéro de notice : A2010-040 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2009.2035497 Date de publication en ligne : 18/12/2009 En ligne : https://doi.org/10.1109/TGRS.2009.2035497 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30236 [article]

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