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Advances in SAR: Sensors, Methodologies, and Applications / Timo Balz (2018)  

Public Titre : Advances in SAR: Sensors, Methodologies, and Applications Type de document : Monographie Auteurs : Timo Balz, Editeur scientifique ; Uwe Soergel, Editeur scientifique ; Mattia Crespi, Editeur scientifique ; Batuhan Osmanoglu, Editeur scientifique Editeur : Bâle [Suisse] : Multidisciplinary Digital Publishing Institute MDPI Année de publication : 2018 Importance : 530 p. Format : 17 x 24 cm ISBN/ISSN/EAN : 978-3-03897-183-2 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes descripteurs IGN] étalonnage [Termes descripteurs IGN] image radar moirée [Termes descripteurs IGN] image Sentinel-SAR [Termes descripteurs IGN] image TanDEM-X [Termes descripteurs IGN] image TerraSAR-X [Termes descripteurs IGN] interféromètrie par radar à antenne synthétique [Termes descripteurs IGN] polarimétrie radar [Termes descripteurs IGN] télédétection en hyperfréquence Résumé : (éditeur) The key importance of radar remote sensing for civil applications has been recognized for decades, and enormous scientific and technical developments have been carried out to further improve SAR sensors and SAR data processing. In recent years, SAR satellite constellations, consisting of two or more satellites, are becoming the “new normal” in SAR remote sensing. The present availability of SAR sensor constellations, such as Cosmo SkyMed, TerraSAR-X/TanDEM-X, and the new Copernicus sensors Sentinel-1A and 1B, supply a continuous stream of imagery with a unique short revisit cycle of only six days. Together with many more operational and planned SAR satellite systems, such as Geo-Fen 3 or NASA ISRO SAR (NISAR), this unprecedented amount of high-quality SAR data is suitable for a variety of applications, provided proper data processing methodology are applied. In "Advances in SAR: Sensors, Methodologies, and Applications" advancements in the field of hardware, software, and applications are presented, covering a wide range of topics. Note de contenu : 1- Pre-flight SAOCOM-1A SAR performance assessment by outdoor campaign 2- On the design of radar corner reflectors for deformation monitoring in multi-frequency InSAR 3- Identification of C-Band radio frequency interferences from Sentinel-1 data 4- An accelerated backprojection algorithm for monostatic and bistatic SAR processing 5- Signal processing for a multiple-input,division frequency-modulated continuous wave (FMCW) 6- Fast and efficient correction of ground moving targets in a Synthetic Aperture Radar, single-look complex image 7- A unified algorithm for channel imbalance and antenna phase center position calibration of a single-pass multi-baseline TomoSAR System 8- InSAR Deformation Analysis with Distributed Scatterers: A Review Complemented by New Advances 9- Modeling orbital error in InSAR interferogram using frequency and spatial domain based methods 10- Ionospheric reconstructions using Faraday rotation in spaceborne polarimetric SAR data 11- An efficient maximum likelihood estimation approach of multi-baseline SAR interferometry for refined topographic mapping in mountainous areas 12- Elevation extraction and deformation monitoring by multitemporal InSAR of Lupu Bridge in Shanghai 13- Ground deformations around the Toktogul reservoir, Kyrgyzstan, from Envisat ASAR and Sentinel-1 data - A case study about the impact of atmospheric corrections on InSAR time series 14- Time series analysis of very slow landslides in the Three Gorges region through small baseline SAR offset tracking 15- Landslide displacement monitoring with split- bandwidth interferometry: A case study of the shuping landslide in the Three Gorges area 16- Split-band interferometry-assisted phase unwrapping for the phase ambiguities correction 17- Better estimated IEM input parameters using random fractal geometry applied on multi-frequency SAR data 18- The role of resolution in the estimation of fractal dimension maps From SAR data 19- Statistical modeling of polarimetric SAR data: A survey and challenges 20- Multi-feature segmentation for high-resolution polarimetric SAR data based on fractal net evolution approach 21- PolSAR land cover classification based on roll-invariant and selected hidden polarimetric features in the rotation domain 22- A SAR-based index for landscape changes in African savannas 23- Semi-automated surface water detection with Synthetic Aperture Radar Data: A wetland case study 24- Coherence change-detection with Sentinel-1 for natural and anthropogenic disaster monitoring in urban areas 25- Multi-layer model based on multi-scale and multi-feature fusion for SAR images 26- L-Band temporal coherence assessment and modeling using amplitude and snow depth over interior Alaska Numéro de notice : 28510 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Monographie DOI : 10.3390/books978-3-03897-183-2 En ligne : https://doi.org/10.3390/books978-3-03897-183-2 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=97066

Satellite SAR geocoding with refined RPC model / L. Zhang in ISPRS Journal of photogrammetry and remote sensing, vol 69 (April 2012)

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 69 (April 2012) . - pp 37 - 49 Titre : Satellite SAR geocoding with refined RPC model Type de document : Article/Communication Auteurs : L. Zhang, Auteur ; Timo Balz, Auteur ; M. Liao, Auteur Année de publication : 2012 Article en page(s) : pp 37 - 49 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes descripteurs IGN] appariement d'images [Termes descripteurs IGN] erreur corrélée au temps [Termes descripteurs IGN] géoréférencement indirect [Termes descripteurs IGN] image radar moirée [Termes descripteurs IGN] modèle numérique de surface [Termes descripteurs IGN] modèle par fonctions rationnelles [Termes descripteurs IGN] propagation du signal Résumé : (Auteur) Recent studies have proved that the Rational Polynomial Camera (RPC) model is able to act as a reliable replacement of the rigorous Range-Doppler (RD) model for the geometric processing of satellite SAR datasets. But its capability in absolute geolocation of SAR images has not been evaluated quantitatively. Therefore, in this article the problems of error analysis and refinement of SAR RPC model are primarily investigated to improve the absolute accuracy of SAR geolocation. Range propagation delay and azimuth timing error are identified as two major error sources for SAR geolocation. An approach based on SAR image simulation and real-to-simulated image matching is developed to estimate and correct these two errors. Afterwards a refined RPC model can be built from the error-corrected RD model and then used in satellite SAR geocoding. Three experiments with different settings are designed and conducted to comprehensively evaluate the accuracies of SAR geolocation with both ordinary and refined RPC models. All the experimental results demonstrate that with RPC model refinement the absolute location accuracies of geocoded SAR images can be improved significantly, particularly in Easting direction. In another experiment the computation efficiencies of SAR geocoding with both RD and RPC models are compared quantitatively. The results show that by using the RPC model such efficiency can be remarkably improved by at least 16 times. In addition the problem of DEM data selection for SAR image simulation in RPC model refinement is studied by a comparative experiment. The results reveal that the best choice should be using the proper DEM datasets of spatial resolution comparable to that of the SAR images. Numéro de notice : A2012-193 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31640 [article]

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3D SAR simulation of urban areas based on detailed building models / Stefan Auer in Photogrammetric Engineering & Remote Sensing, PERS, vol 76 n° 12 (December 2010)  

Public [article]  inPhotogrammetric Engineering & Remote Sensing, PERS > vol 76 n° 12 (December 2010) . - pp 1373 - 1384 Titre : 3D SAR simulation of urban areas based on detailed building models Type de document : Article/Communication Auteurs : Stefan Auer, Auteur ; Timo Balz, Auteur ; S. Becker, Auteur ; R. Balmer, Auteur Année de publication : 2010 Article en page(s) : pp 1373 - 1384 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes descripteurs IGN] bâtiment [Termes descripteurs IGN] centre de phase [Termes descripteurs IGN] coin réflecteur [Termes descripteurs IGN] image TerraSAR-X [Termes descripteurs IGN] interferométrie différentielle [Termes descripteurs IGN] lancer de rayons [Termes descripteurs IGN] modèle 3D de l'espace urbain [Termes descripteurs IGN] simulation d'image Résumé : (Auteur) This paper confirms the need for detailed 3D models for the simulation of high-resolution SAR images in order to support Persistent Scatterer Interferometry (PSl) focused on single urban objects. Using a building model enhanced by facade grammar, multiple reflections at building facades are analyzed using ray tracing techniques and scatterers are localized in azimuth, range, and elevation. In a case study, salient signatures of a TerraSAR-X image are analyzed based on simulated sar reflectivity maps. Phase centers of trihedral reflections are mapped onto the building model and the physical correspondence of scatterers to building features is investigated. Surfaces contributing to salient scatterers are identified at the building model. Eventually, the use of sar simulation to support PSI is shown from two aspects: (a) for providing a-priori information about building layover, and (b) for extending knowledge about the nature of dominant scatterers. Numéro de notice : A2010-526 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.76.12.1373 En ligne : https://doi.org/10.14358/PERS.76.12.1373 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30718 [article]

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The Sichuan earthquake (1): satellite imagery for rapid response / Timo Balz in GIM international, vol 22 n° 10 (October 2008)

Public [article]  inGIM international > vol 22 n° 10 (October 2008) . - pp 13 - 15 Titre : The Sichuan earthquake (1): satellite imagery for rapid response Type de document : Article/Communication Auteurs : Timo Balz, Auteur ; B. Scheuchl, Auteur ; D. Li, Auteur Année de publication : 2008 Article en page(s) : pp 13 - 15 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes descripteurs IGN] dommage matériel [Termes descripteurs IGN] effondrement de terrain [Termes descripteurs IGN] image Formosat [Termes descripteurs IGN] image optique [Termes descripteurs IGN] image radar [Termes descripteurs IGN] image SPOT [Termes descripteurs IGN] image TerraSAR-X [Termes descripteurs IGN] risque naturel [Termes descripteurs IGN] séisme [Termes descripteurs IGN] Setchouan (Chine) [Termes descripteurs IGN] surveillance géologique [Termes descripteurs IGN] urgence Résumé : (Auteur) When in May 2008 an earthquake and associated landslides struck the Chinese province of Sichuan, geo-information service providers were able to support emergency response efforts by providing and analysing radar and optical satellite imagery, and continuous follow-on monitoring. The authors provide an overview of the disaster and its effects, demonstrating the suitability of satellite images for emergency rapid response. Copyright Reed Business Information Numéro de notice : A2008-382 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29375 [article]

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