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Urban subsidence monitoring using radar interferometry: algorithms and validation / M. Crosetto in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 7 (July 2003)  

Public [article]  inPhotogrammetric Engineering & Remote Sensing, PERS > vol 69 n° 7 (July 2003) . - pp 775 - 783 Titre : Urban subsidence monitoring using radar interferometry: algorithms and validation Type de document : Article/Communication Auteurs : M. Crosetto, Auteur ; M. Castillo, Auteur ; Roman Arbiol, Auteur Année de publication : 2003 Article en page(s) : pp 775 - 783 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes IGN] Catalogne (Espagne) [Termes IGN] déformation de la croute terrestre [Termes IGN] image radar moirée [Termes IGN] interferométrie différentielle [Termes IGN] interféromètrie par radar à antenne synthétique [Termes IGN] milieu urbain [Termes IGN] modèle géométrique de prise de vue [Termes IGN] petite échelle [Termes IGN] point d'appui [Termes IGN] risque naturel [Termes IGN] subsidence [Termes IGN] surveillance géologique Résumé : (Auteur) The differential interferometric SAR (DInSAR) technique has proved its capability to detect small surface deformations in several types of applications. In this paper, its use as a quantitative subsidence monitoring tool is addressed to. A complete procedure is described, giving emphasis to the algorithms that have a major impact on the quality of the DInSAR results : the calibration of the InSAR geometry based on ground control points, which guarantees a high accuracy of the InSAR geometric model ; a filtering procedure suitable to reduce the atmospheric effects in small-scale subsidences; and a data fusion procedure for multiple observations, which represents a key step to improve the quality of the DInSAR products. The procedure was used in the analysis of a small-scale urban subsidence located in Catalonia, northeastern Spain. The validation of the results, which was based on the comparison with precise and independent reference data, is discussed in detail. Numéro de notice : A2003-153 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.69.7.775 En ligne : https://doi.org/10.14358/PERS.69.7.775 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22449 [article]