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Analysis of ground moving objects using SRTM/X-SAR data / S. Suchandt in ISPRS Journal of photogrammetry and remote sensing, vol 61 n° 3-4 (December 2006)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 61 n° 3-4 (December 2006) . - pp 209 - 224 Titre : Analysis of ground moving objects using SRTM/X-SAR data Type de document : Article/Communication Auteurs : S. Suchandt, Auteur ; M. Eineder, Auteur ; et al., Auteur Année de publication : 2006 Article en page(s) : pp 209 - 224 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes IGN] détection d'objet [Termes IGN] détection de cible [Termes IGN] image radar [Termes IGN] image SRTM [Termes IGN] interféromètrie par radar à antenne synthétique [Termes IGN] objet mobile [Termes IGN] radargrammétrie Résumé : (Auteur) The Shuttle Radar Topography Mission (SRTM) was flown in February 2000 to map the world's land mass with high accuracy, using two Synthetic Aperture Radar (SAR) systems. Spaceborne single-pass across-track SAR interferometry was used for the first time. The mechanical configuration of the interferometer formed both an across-track and a small along-track baseline between the antennas in the cargo bay of the space shuttle and at the tip of the deployable boom. SAR Along-Track Interferometry (ATI) is sensitive to ground motion and was recently proposed for traffic monitoring applications. Due to the along-track baseline, SRTM data currently offer the unique opportunity to study the effects of moving objects on high-resolution spaceborne SAR ATI data. This paper presents an analysis of moving vehicles in SRTM/X-SAR ATI data as well as application examples, and describes specific SAR processing techniques for vehicle detection and velocity measurement. Copyright ISPRS Numéro de notice : A2006-605 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2006.09.008 En ligne : https://doi.org/10.1016/j.isprsjprs.2006.09.008 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28328 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-06091	RAB	Atlas / Beau livre	Centre de documentation	En réserve L003	Exclu du prêt

A three dimensional scatterer map extends the DEM information in urban areas / Nico Adam in Revue Française de Photogrammétrie et de Télédétection, n° 182 (Juin 2006)  

Public [article]  inRevue Française de Photogrammétrie et de Télédétection > n° 182 (Juin 2006) . - pp 5 - 9 Titre : A three dimensional scatterer map extends the DEM information in urban areas Type de document : Article/Communication Auteurs : Nico Adam, Auteur ; M. Eineder, Auteur Année de publication : 2006 Conférence : ISPRS 2006, Commission 1 Symposium, From sensors to imagery 03/07/2006 06/07/2006 Champs-sur-Marne [Paris Marne-la-Vallée] France OA ISPRS Archives Article en page(s) : pp 5 - 9 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes IGN] coin réflecteur [Termes IGN] données polarimétriques [Termes IGN] image radar moirée [Termes IGN] image SRTM [Termes IGN] interféromètrie par radar à antenne synthétique [Termes IGN] MNS SRTM [Termes IGN] modèle 3D de l'espace urbain [Termes IGN] modèle numérique de surface [Termes IGN] Munich [Termes IGN] précision millimétrique [Termes IGN] tomographie [Termes IGN] zone urbaine Résumé : (Auteur) The generation of digital elevation models (DEMs) by space-born InSAR is a well-established remote sensing technique. Several application projects as for instance the shuttle radar topography mission (SRTM) have proven the outstanding capability to map the Earth's surface globally with great accuracy and constant resolution applying this technique. The short mission time of only eleven days guaranteed the homogenous quality of the generated DEM. The typical InSAR-DEM provides a snapshot of the terrain elevation at the time of acquisition including the vegetation cover. A limitation is that the Earth's cover is mapped only down to a mean radar penetration depth. Polarimetry can be applied to separate volume scattering from the double bounce effect on the ground in forested areas. But in urban areas this scattering model can not be applied. This is in contrast to the great interest in urban areas caused by the high population density and change. Nowadays, the permanent scatterer interferometry which has been invented at POLIMI is working operational and can provide supplementing information. It allows a monitoring of urban areas over time spans of more than ten years. E.g. the subsidence in such spots can be detected and monitored with millimetre accuracy. The separation of the orbit, atmosphere and topography phase effects form the basis for the extreme accuracy regarding the displacement measurement. Furthermore, the PS estimation results in a high precision DEM update at the PS position. The structure of the cities and the radar observation geometry are the reason that this simple elevation concept needs to be extended. It is very likely that more than one dominant scatterer is inside a resolution cell. Tomography can resolve this ambiguity and provides the reflectivity along cross slant range height. Consequently, a real but irregular sampled 3D map of the persistent radar scatterers can be generated which describes the city better. The dominant radar scatterers are related to buildings and other men made features. This is the reason the exact three-dimensional locations of the scatterers provide a lot of useful information on the area and the shape of the city and allowing various applications. Such a 3D map can be a better DEM input for each PS processing that allows an effective PS detection and optimal parameter estimation. A new parametric method for the detection and relative estimation of the two dominant scatterers configuration inside of a resolution cell has been developed. The developed method is more robust because it uses amplitude data only and complements the full tomography which includes the phase information. The city of Munich is one of DLR's testsite for the PS processing and the developed tomography algorithms. Examples for the generated data set and applications will be shown. The permanent scatterers are assessed in situ and the 3D position of the scatterers is checked and compared to the estimates. Copyright SFPT Numéro de notice : A2006-617 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVI/part1/Papers/T09-40.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28340 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
018-06021	RAB	Revue	Centre de documentation	En réserve L003	Disponible

The Shuttle Radar Topography Mission: a new class of digital elevation models acquired by spaceborne radar / B. Rabus in ISPRS Journal of photogrammetry and remote sensing, vol 57 n° 4 (February - March 2003)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 57 n° 4 (February - March 2003) . - pp 241 - 262 Titre : The Shuttle Radar Topography Mission: a new class of digital elevation models acquired by spaceborne radar Type de document : Article/Communication Auteurs : B. Rabus, Auteur ; M. Eineder, Auteur ; Achim Roth, Auteur ; R. Bamler, Auteur Année de publication : 2003 Article en page(s) : pp 241 - 262 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes IGN] bande C [Termes IGN] bande X [Termes IGN] image radar moirée [Termes IGN] interféromètrie par radar à antenne synthétique [Termes IGN] mission spatiale [Termes IGN] modèle numérique de terrain [Termes IGN] navette spatiale [Termes IGN] qualité des données [Termes IGN] SRTM Résumé : (Auteur) For 11 days in february 2000, the Shuttle Radar Topography Mission (SRTM) successfully recorded by interferometric synthetic aperture radar (InSAR) data of the entire land mass of the earth between 60° N and 57° S. The data acquired in C-and X-bands are processed into the first global elevation models (DEMs) at 1 arc sec resolution, by NASA-JPL and German aerospace center (DLR), respectively. From the perspective of the STRM-X system, we give in this paper an overview of the mission and the DEM production, as well as an evaluation of the DEM product quality. Special emphasis is on challenges and peculiarities of the processing that arose from the unique designn of the STRM system, which has been the first single-pass interferometer in space. Copyright ISPRS Numéro de notice : A2003-023 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/S0924-2716(02)00124-7 En ligne : https://doi.org/10.1016/S0924-2716(02)00124-7 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22320 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-03011	SL	Revue	Centre de documentation	Revues en salle	Disponible