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Termes IGN > sciences naturelles > physique > optique > optique physique > radiométrie > rayonnement électromagnétique > spectre électromagnétique > bande spectrale
bande spectraleSynonyme(s)canal spectral |
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Polarimetric SAR speckle noise model / C. Lopez-Martinez in IEEE Transactions on geoscience and remote sensing, vol 41 n° 10 (October 2003)
[article]
Titre : Polarimetric SAR speckle noise model Type de document : Article/Communication Auteurs : C. Lopez-Martinez, Auteur ; X. Fabregas, Auteur Année de publication : 2003 Article en page(s) : pp 2232 - 2242 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] bande L
[Termes IGN] chatoiement
[Termes IGN] filtrage du bruit
[Termes IGN] image radar moirée
[Termes IGN] matrice de covariance
[Termes IGN] polarimétrieRésumé : (Auteur) Synthetic aperture radar (SAR) data are affected by speckle noise, originated by the SAR system's coherent nature. The problem of speckle noise in one-dimensional (1-D) data is already solved, as speckle has a multiplicative characteristic. SAR polarimetry represents an extension to multidimensional data by the use of polarization wave diversity. As a consequence of the existence of a correlation degree between the SAR images, the 1-D speckle noise model cannot be extended to multidimensional SAR data. This paper is devoted to present a completely new speckle noise model for the complex covariance matrix describing polarimetric SAR data in the distributed scatterers case. As will be shown, this new model is able to identify which are the noise mechanisms in all the covariance matrix elements. The speckle noise model is validated by using real L-band polarimetric data acquired with the German E-SAR sensor. Numéro de notice : A2003-351 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2003.815240 En ligne : https://doi.org/10.1109/TGRS.2003.815240 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26431
in IEEE Transactions on geoscience and remote sensing > vol 41 n° 10 (October 2003) . - pp 2232 - 2242[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-03101 RAB Revue Centre de documentation En réserve L003 Disponible Speckle filtering and coherence estimation of polarimetric SAR interferometry data for forest applications / Jong-Sen Lee in IEEE Transactions on geoscience and remote sensing, vol 41 n° 10 (October 2003)
[article]
Titre : Speckle filtering and coherence estimation of polarimetric SAR interferometry data for forest applications Type de document : Article/Communication Auteurs : Jong-Sen Lee, Auteur ; S.R. Cloude, Auteur ; K.P. Papathanassiou, Auteur ; M.R. Grunes, Auteur ; I.H. Woodhouse, Auteur Année de publication : 2003 Article en page(s) : pp 2254 - 2263 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] bande L
[Termes IGN] estimation de cohérence
[Termes IGN] filtre de déchatoiement
[Termes IGN] image radar moirée
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] matrice
[Termes IGN] Pol-INSARNuméro de notice : A2003-353 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2003.817196 En ligne : https://doi.org/10.1109/TGRS.2003.817196 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26433
in IEEE Transactions on geoscience and remote sensing > vol 41 n° 10 (October 2003) . - pp 2254 - 2263[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-03101 RAB Revue Centre de documentation En réserve L003 Disponible Improvements to urban area characterization using multitemporal and multiangle SAR images / F. Dell'acqua in IEEE Transactions on geoscience and remote sensing, vol 41 n° 9 (September 2003)
[article]
Titre : Improvements to urban area characterization using multitemporal and multiangle SAR images Type de document : Article/Communication Auteurs : F. Dell'acqua, Auteur ; Paolo Gamba, Auteur ; G. Lisini, Auteur Année de publication : 2003 Article en page(s) : pp 1996 - 2004 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] bande C
[Termes IGN] bande X
[Termes IGN] classification floue
[Termes IGN] classification par réseau neuronal
[Termes IGN] extraction du réseau routier
[Termes IGN] histogramme
[Termes IGN] image ERS-SAR
[Termes IGN] image multitemporelle
[Termes IGN] Lombardie
[Termes IGN] milieu urbain
[Termes IGN] précision de la classification
[Termes IGN] réalité de terrain
[Termes IGN] réseau routierRésumé : (Auteur) In this paper, we present some improvements to urban area characterization by means of synthetic aperture radar (SAR) images using multitemporal and multiangle datasets. The first aim of this research is to show that a temporal sequence of satellite SAR data may improve the classification accuracy and the discriminability of land cover classes in an urban area. Similarly, a second point worth discussing is to what extent multiangle SAR data allows extracting complementary urban features, exploiting different acquisition geometries. To these aims, in this paper, we show results on the same urban test site (Pavia, northern Italy), referring to a sequence of European Remote Sensing Satellite 1/2 (ERS1/2) Cband images and to a set of simulated Xband data with a finer spatial resolution and different viewing angles. In particular, the multitemporal data is analyzed by means of a novel procedure based on a neurofuzzy classifier whose input is a subset of the ERS sequence chosen using the histogram distance index. Instead, the multiangle dataset is used to provide a better characterization of the road network in the area, overcoming effects due to the orientation of the SAR sensor. Numéro de notice : A2003-251 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2003.814631 En ligne : https://doi.org/10.1109/TGRS.2003.814631 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22546
in IEEE Transactions on geoscience and remote sensing > vol 41 n° 9 (September 2003) . - pp 1996 - 2004[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-03091 RAB Revue Centre de documentation En réserve L003 Disponible Surface soil moisture retrieval from L-band radiometry: a global regression study / T. Pellarin in IEEE Transactions on geoscience and remote sensing, vol 41 n° 9 (September 2003)
[article]
Titre : Surface soil moisture retrieval from L-band radiometry: a global regression study Type de document : Article/Communication Auteurs : T. Pellarin, Auteur ; J.C. Calvet, Auteur ; Jean-Pierre Wigneron, Auteur Année de publication : 2003 Article en page(s) : pp 2037 - 2051 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] bande L
[Termes IGN] humidité du sol
[Termes IGN] luminance lumineuse
[Termes IGN] radiométrie
[Termes IGN] régression
[Termes IGN] température de surface
[Termes IGN] zone humideRésumé : (Auteur) Using a global simulation of L-band (1.4 GHz) brightness temperature (TB) for two years (1987 and 1988), the relationship between L(band brightness temperatures and surface soil moisture was analyzed using simple regression models. The global TB dataset describes continental pixels at a halfdegree spatial resolution and accounts for withinpixel heterogeneity, based on 1-km resolution land cover maps. Two different statistical methods were investigated. First, a single regression model was obtained using a linear combination of TB indexes. This method consisted in retrieving surface soil moisture using the same global regression model for all the pixels. Second, a regression model was calibrated over each pixel using similar linear combinations of the TB indexes. In both cases, the influence of the radiometric noise on TB was investigated. Applying these two methods, the capability ,of L-band TB observations to monitor surface soil moisture vas evaluated at the global scale and during a two-year time period. Global maps of the estimated accuracy of the soil moisture retrievals were produced. These results contribute to better define the potential of the observations from future spaceborne missions,such as the Soil Moisture and Ocean Salinity (SMOS) mission Numéro de notice : A2003-252 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2003.813492 En ligne : https://doi.org/10.1109/TGRS.2003.813492 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22547
in IEEE Transactions on geoscience and remote sensing > vol 41 n° 9 (September 2003) . - pp 2037 - 2051[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-03091 RAB Revue Centre de documentation En réserve L003 Disponible Jers SAR interferometry for land subsidence monitoring / Tazio Strozzi in IEEE Transactions on geoscience and remote sensing, vol 41 n° 7 (July 2003)
[article]
Titre : Jers SAR interferometry for land subsidence monitoring Type de document : Article/Communication Auteurs : Tazio Strozzi, Auteur ; U. Wegmuller, Auteur ; C.L. Werner, Auteur ; A. Wiesmann, Auteur ; V. Spreckels, Auteur Année de publication : 2003 Article en page(s) : pp 1702 - 1711 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] bande L
[Termes IGN] effondrement de terrain
[Termes IGN] image radar moirée
[Termes IGN] interferométrie différentielle
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] JERS
[Termes IGN] subsidence
[Termes IGN] surveillance géologiqueRésumé : (Auteur) In this paper, the potential of L-band repeat-pass differential synthetic aperture radar (SAR) interferometry for land subsidence monitoring is evaluated using Japanese Earth Resources Satellite (JERS) SAR data. Bologna, Mexico City, and the Ruhrgebiet are selected as application sites representing slow to fast deformation velocities. The investigation includes feasibility aspects such as data availability, the temporal decorrelation over different landcover classes and the range of useful spatial baselines, an analysis of the achieved deformation accuracy, and considerations on the complementarity to European Remote Sensing satellite (ERS) SAR interferometry and leveling surveys. In spite of the rather limited data availability, land subsidence maps could be generated for the three selected application sites. In contrast to ERS C-band SAR data, JERS L-band interferometry permitted the retrieval of subsidence values over vegetated areas and forest when using interferograms of less than one year acquisition time interval and short baseline. In addition, the longer L-band wavelength was found to be superior in the case of large deformation gradients that lead to phase-unwrapping problems in C-band interferometry. Numéro de notice : A2003-211 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2003.813273 En ligne : https://doi.org/10.1109/TGRS.2003.813273 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22507
in IEEE Transactions on geoscience and remote sensing > vol 41 n° 7 (July 2003) . - pp 1702 - 1711[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-03071 RAB Revue Centre de documentation En réserve L003 Disponible Multitemporal repeat-pass SAR interferometry of boreal forests / J. Askne in IEEE Transactions on geoscience and remote sensing, vol 41 n° 7 (July 2003)PermalinkSAR monitoring of progressive and seasonal ground deformation using the permanent scatterers technique / C. Colesanti in IEEE Transactions on geoscience and remote sensing, vol 41 n° 7 (July 2003)PermalinkA CCD camera-based hyperspectral imaging system for stationary and airborne applications / C. Yang in Geocarto international, vol 18 n° 2 (June - August 2003)PermalinkComparative alteration mineral mapping using visible to shortwave infrared (0.4-2.4 um) Hyperion, ALI, and ASTER imagery / B. Hubbard in IEEE Transactions on geoscience and remote sensing, vol 41 n° 6 (June 2003)PermalinkComparison of Earth observing-1 ALI and Landsat ETM+ for crop identification and yield prediction in Mexico / D.B. Lobell in IEEE Transactions on geoscience and remote sensing, vol 41 n° 6 (June 2003)PermalinkData continuity of Earth observing 1 (EO-1) advanced land imager (ALI) and Landsat TM and ETM+ / R. Byant in IEEE Transactions on geoscience and remote sensing, vol 41 n° 6 (June 2003)PermalinkHyperspectral texture recognition using a multiscale opponent representation / M. Shi in IEEE Transactions on geoscience and remote sensing, vol 41 n° 5 (May 2003)PermalinkEtude de zones humides à partir d'images hyperspectrales CASI : application aux fonds de vallée du massif armoricain / Laurence Hubert-Moy in Photo interprétation, vol 39 n° 1 (Avril 2003)PermalinkAIRS-AMSU-HSB on the Aqua mission: design, science objectives, data products, and processing systems / H.H. Aumann in IEEE Transactions on geoscience and remote sensing, vol 41 n° 2 (February 2003)PermalinkThe 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)Permalink