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Etendre la recherche sur niveau(x) vers le bas
Refinement of interferometric SAR parameters using digital terrain model as an external reference / Jyunpei Uemoto in ISPRS Journal of photogrammetry and remote sensing, vol 175 (May 2021)
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[article]
Titre : Refinement of interferometric SAR parameters using digital terrain model as an external reference Type de document : Article/Communication Auteurs : Jyunpei Uemoto, Auteur Année de publication : 2021 Article en page(s) : pp 34 - 43 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes descripteurs IGN] ajustement de paramètres
[Termes descripteurs IGN] empreinte
[Termes descripteurs IGN] hauteur (coordonnée)
[Termes descripteurs IGN] hauteur des arbres
[Termes descripteurs IGN] hauteur du bâti
[Termes descripteurs IGN] interféromètrie par radar à antenne synthétique
[Termes descripteurs IGN] jeu de données
[Termes descripteurs IGN] modèle numérique de surface
[Termes descripteurs IGN] modèle numérique de terrain
[Termes descripteurs IGN] point d'appui
[Termes descripteurs IGN] radar aéroporté à visée latéraleRésumé : (auteur) Numéro de notice : A2021-262 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2021.02.017 date de publication en ligne : 10/03/2021 En ligne : https://doi.org/10.1016/j.isprsjprs.2021.02.017 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=97309
in ISPRS Journal of photogrammetry and remote sensing > vol 175 (May 2021) . - pp 34 - 43[article]A geographic information-driven method and a new large scale dataset for remote sensing cloud/snow detection / Xi Wu in ISPRS Journal of photogrammetry and remote sensing, vol 174 (April 2021)
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[article]
Titre : A geographic information-driven method and a new large scale dataset for remote sensing cloud/snow detection Type de document : Article/Communication Auteurs : Xi Wu, Auteur ; Zhenwei Shi, Auteur ; Zhengxia Zou, Auteur Année de publication : 2021 Article en page(s) : pp 87 - 104 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes descripteurs IGN] altitude
[Termes descripteurs IGN] apprentissage profond
[Termes descripteurs IGN] classification par réseau neuronal convolutif
[Termes descripteurs IGN] détection des nuages
[Termes descripteurs IGN] extraction de traits caractéristiques
[Termes descripteurs IGN] fusion de données
[Termes descripteurs IGN] image Gaofen
[Termes descripteurs IGN] information géographique
[Termes descripteurs IGN] latitude
[Termes descripteurs IGN] longitude
[Termes descripteurs IGN] modèle statistique
[Termes descripteurs IGN] neige
[Termes descripteurs IGN] Normalized Difference Snow IndexRésumé : (auteur) Geographic information such as the altitude, latitude, and longitude are common but fundamental meta-records in remote sensing image products. In this paper, it is shown that such a group of records provides important priors for cloud and snow detection in remote sensing imagery. The intuition comes from some common geographical knowledge, where many of them are important but are often overlooked. For example, it is generally known that snow is less likely to exist in low-latitude or low-altitude areas, and clouds in different geographic may have various visual appearances. Previous cloud and snow detection methods simply ignore the use of such information, and perform detection solely based on the image data (band reflectance). Due to the neglect of such priors, most of these methods are difficult to obtain satisfactory performance in complex scenarios (e.g., cloud-snow coexistence). In this paper, a novel neural network called “Geographic Information-driven Network (GeoInfoNet)” is proposed for cloud and snow detection. In addition to the use of the image data, the model integrates the geographic information at both training and detection phases. A “geographic information encoder” is specially designed, which encodes the altitude, latitude, and longitude of imagery to a set of auxiliary maps and then feeds them to the detection network. The proposed network can be trained in an end-to-end fashion with dense robust features extracted and fused. A new dataset called “Levir_CS” for cloud and snow detection is built, which contains 4,168 Gaofen-1 satellite images and corresponding geographical records, and is over 20× larger than other datasets in this field. On “Levir_CS”, experiments show that the method achieves 90.74% intersection over union of cloud and 78.26% intersection over union of snow. It outperforms other state of the art cloud and snow detection methods with a large margin. Feature visualizations also show that the method learns some important priors which is close to the common sense. The proposed dataset and the code of GeoInfoNet are available in https://github.com/permanentCH5/GeoInfoNet. Numéro de notice : A2021-209 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2021.01.023 date de publication en ligne : 22/02/2021 En ligne : https://doi.org/10.1016/j.isprsjprs.2021.01.023 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=97187
in ISPRS Journal of photogrammetry and remote sensing > vol 174 (April 2021) . - pp 87 - 104[article]Strategy for the realisation of the International Height Reference System (IHRS) / Laura Sánchez in Journal of geodesy, vol 95 n° 4 (April 2021)
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[article]
Titre : Strategy for the realisation of the International Height Reference System (IHRS) Type de document : Article/Communication Auteurs : Laura Sánchez, Auteur ; Jonas Ågren, Auteur ; Jianliang Huang, Auteur ; et al., Auteur Année de publication : 2021 Article en page(s) : n° 33 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes descripteurs IGN] Association internationale de géodésie
[Termes descripteurs IGN] champ de pesanteur terrestre
[Termes descripteurs IGN] cohérence
[Termes descripteurs IGN] coordonnées géodésiques
[Termes descripteurs IGN] hauteur ellipsoïdale
[Termes descripteurs IGN] International Terrestrial Reference Frame
[Termes descripteurs IGN] modèle de géopotentiel
[Termes descripteurs IGN] norme
[Termes descripteurs IGN] potentiel de pesanteur terrestre
[Termes descripteurs IGN] système de référence altimétrique
[Termes descripteurs IGN] système international de référence altimétriqueRésumé : (auteur) In 2015, the International Association of Geodesy defined the International Height Reference System (IHRS) as the conventional gravity field-related global height system. The IHRS is a geopotential reference system co-rotating with the Earth. Coordinates of points or objects close to or on the Earth’s surface are given by geopotential numbers C(P) referring to an equipotential surface defined by the conventional value W0 = 62,636,853.4 m2 s−2, and geocentric Cartesian coordinates X referring to the International Terrestrial Reference System (ITRS). Current efforts concentrate on an accurate, consistent, and well-defined realisation of the IHRS to provide an international standard for the precise determination of physical coordinates worldwide. Accordingly, this study focuses on the strategy for the realisation of the IHRS; i.e. the establishment of the International Height Reference Frame (IHRF). Four main aspects are considered: (1) methods for the determination of IHRF physical coordinates; (2) standards and conventions needed to ensure consistency between the definition and the realisation of the reference system; (3) criteria for the IHRF reference network design and station selection; and (4) operational infrastructure to guarantee a reliable and long-term sustainability of the IHRF. A highlight of this work is the evaluation of different approaches for the determination and accuracy assessment of IHRF coordinates based on the existing resources, namely (1) global gravity models of high resolution, (2) precise regional gravity field modelling, and (3) vertical datum unification of the local height systems into the IHRF. After a detailed discussion of the advantages, current limitations, and possibilities of improvement in the coordinate determination using these options, we define a strategy for the establishment of the IHRF including data requirements, a set of minimum standards/conventions for the determination of potential coordinates, a first IHRF reference network configuration, and a proposal to create a component of the International Gravity Field Service (IGFS) dedicated to the maintenance and servicing of the IHRS/IHRF. Numéro de notice : A2021-260 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-021-01481-0 date de publication en ligne : 22/02/2021 En ligne : https://doi.org/10.1007/s00190-021-01481-0 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=97300
in Journal of geodesy > vol 95 n° 4 (April 2021) . - n° 33[article]Mitigating high latitude ionospheric scintillation effects on GNSS Precise Point Positioning exploiting 1-s scintillation indices / Kai Guo in Journal of geodesy, vol 95 n° 3 (March 2021)
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[article]
Titre : Mitigating high latitude ionospheric scintillation effects on GNSS Precise Point Positioning exploiting 1-s scintillation indices Type de document : Article/Communication Auteurs : Kai Guo, Auteur ; Sreeja Vadakke Veettil, Auteur ; Brian Jerald Weaver, Auteur ; et al., Auteur Année de publication : 2021 Article en page(s) : n° 30 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes descripteurs IGN] Antarctique
[Termes descripteurs IGN] atténuation du signal
[Termes descripteurs IGN] Canada
[Termes descripteurs IGN] erreur de positionnement
[Termes descripteurs IGN] latitude
[Termes descripteurs IGN] positionnement par GNSS
[Termes descripteurs IGN] positionnement ponctuel précis
[Termes descripteurs IGN] récepteur GNSS
[Termes descripteurs IGN] scintillation
[Termes descripteurs IGN] tempête magnétiqueRésumé : (auteur) Ionospheric scintillation refers to rapid and random fluctuations in radio frequency signal intensity and phase, which occurs more frequently and severely at high latitudes under strong solar and geomagnetic activity. As one of the most challenging error sources affecting Global Navigation Satellite System (GNSS), scintillation can significantly degrade the performance of GNSS receivers, thereby leading to increased positioning errors. This study analyzes Global Positioning System (GPS) scintillation data recorded by two ionospheric scintillation monitoring receivers operational, respectively, in the Arctic and northern Canada during a geomagnetic storm in 2019. A novel approach is proposed to calculate 1-s scintillation indices. The 1-s receiver tracking error variances are then estimated, which are further used to mitigate the high latitude scintillation effects on GPS Precise Point Positioning. Results show that the 1-s scintillation indices can describe the signal fluctuations under scintillation more accurately. With the mitigation approach, the 3D positioning error is greatly reduced under scintillation analyzed in this study. Additionally, the 1-s tracking error variance achieves a better performance in scintillation mitigation compared with the previous approach which exploits 1-min tracking error variance estimated by the commonly used 1-min scintillation indices. This work is relevant for a better understanding of the high latitude scintillation effects on GNSS and is also beneficial for developing scintillation mitigation tools for GNSS positioning. Numéro de notice : A2021-222 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-021-01475-y date de publication en ligne : 22/02/2021 En ligne : https://doi.org/10.1007/s00190-021-01475-y Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=97191
in Journal of geodesy > vol 95 n° 3 (March 2021) . - n° 30[article]Ambiguous use of geographical information systems for the rectification of large-scale geometric maps / Anders Wästfelt in Cartographic journal (the), Vol 57 n° 3 (August 2020)
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[article]
Titre : Ambiguous use of geographical information systems for the rectification of large-scale geometric maps Type de document : Article/Communication Auteurs : Anders Wästfelt, Auteur Année de publication : 2020 Article en page(s) : pp 209 - 220 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG
[Termes descripteurs IGN] ArcGIS
[Termes descripteurs IGN] carte ancienne
[Termes descripteurs IGN] correction géométrique
[Termes descripteurs IGN] déformation de projection
[Termes descripteurs IGN] déformation géométrique
[Termes descripteurs IGN] erreur de mesure
[Termes descripteurs IGN] erreur géométrique
[Termes descripteurs IGN] grande échelle
[Termes descripteurs IGN] grille
[Termes descripteurs IGN] point
[Termes descripteurs IGN] qualité des données
[Termes descripteurs IGN] Suède
[Termes descripteurs IGN] système de coordonnéesRésumé : (auteur) Unlike modern maps, geometric maps lack a coordinate system and contain unsystematic geometric inaccuracies. This paper illuminates four aspects concerning the problem of uniting geographical information technology with old geometric maps. These are as follows: first, the origin of and geometric qualities in the representation of objects in geometric maps; second, the distortions originating from measurement techniques; third, the assumption that it is possible to find points that are the same over time for rectification in Geographic Information System (GIS); and, fourth, the extrapolation of unsystematic geometric distortions when using GIS techniques without any knowledge of the present unsystematic distortions in a map. The article presents the background of Swedish geometric maps and a hypothetical example is used to present the principle problems of using GIS techniques to rectify geometric maps. The conclusion of the paper is that systematic and unsystematic geometric distortions need to be identified and handled separately. Numéro de notice : A2020-803 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/00087041.2019.1660511 date de publication en ligne : 13/03/2020 En ligne : https://doi.org/10.1080/00087041.2019.1660511 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96761
in Cartographic journal (the) > Vol 57 n° 3 (August 2020) . - pp 209 - 220[article]Réservation
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PermalinkOptimized formulas for the gravitational field of a tesseroid / Thomas Grombein in Journal of geodesy, vol 87 n° 7 (July 2013)
PermalinkFrom the portolan chart to the latitude chart / Joaquim Alves Gaspar in Cartes & Géomatique, n° 216 (juin 2013)
PermalinkFirst, do no harm : Eliminating systematic error in analytical results of GIS applications / Nicholas Chrisman in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XL-2 W1 ([13/05/2013])
PermalinkNivellement général de la France : L'entretien des triplets / Alain Coulomb in Géomètre, n° 2102 (avril 2013)
PermalinkCIRCE RHONE : mise en place d'une grille de transformation altimétrique entre les altitudes orthométriques (NGF/Lallemand) et normales (NGF/IGN69) / Paul-Henri Faure in XYZ, n° 134 (mars - mai 2013)
PermalinkDevelopment of a Coordinate Transformation method for direct georeferencing in map projection frames / Haitao Zhao in ISPRS Journal of photogrammetry and remote sensing, vol 77 (March 2013)
PermalinkPermalinkÉtude et optimisation du fonctionnement des systèmes 3D de positionnement Topcon sur les machines de travaux publics / Bastien Lopes (2013)
PermalinkGalileo altimetry using AltBOC and RTK techniques / Jürgen Dampf in Inside GNSS, vol 8 n° 1 (January - February 2013)
PermalinkGéoréférencement tridimensionnel des réseaux de distribution de chaleur de la Communauté Urbaine de Strasbourg / Bruce Beaurepère (2013)
PermalinkGlobal height system unification with GOCE: a simulation study on the indirect bias term in the GBVP approach / C. Gerlach in Journal of geodesy, vol 87 n° 1 (January 2013)
PermalinkPermalinkPermalinkThe height datum problem and the role of satellite gravity models / A. Gatti in Journal of geodesy, vol 87 n° 1 (January 2013)
PermalinkMesurer les avions de Swisstopo, un mandat plutôt inhabituel / Jim Ray in Géomatique suisse, vol 110 n° 11 (01/11/2012)
PermalinkThe application of the model of coordinate S-transformation for stability analysis of datum points in high-precision GPS deformation monitoring networks / Jiming Guo in Journal of applied geodesy, vol 6 n° 3-4 (November 2012)
PermalinkMultidirectional visibility index for analytical shading enhancement / T. Podobnikar in Cartographic journal (the), vol 49 n° 3 (August 2012)
PermalinkPositional accuracy improvement using empirical analytic functions / C. Lopez-Vasquez in Cartography and Geographic Information Science, vol 39 n° 3 (July 2012)
PermalinkCoordonnées géographiques lambda, phi, h sur l'ellipsoïde de révolution / Patrick Julien in XYZ, n° 130 (mars - mai 2012)
PermalinkThe US Gravimetric Geoid of 2009 (USGG2009): model development and evaluation / Y. Wang in Journal of geodesy, vol 86 n° 3 (March 2012)
PermalinkPermalinkPermalinkPermalinkPermalinkPermalinkEvaluation de l'érosion du site de Wankama (Niger) par comparaison de différents MNT / T. Gendre in XYZ, n° 129 (décembre - février 2011)
PermalinkA general formula for calculating meridian arc length and its application to coordinate conversion in the Gauss-Krüger projection / K. Kawase in Bulletin of the GeoSpatial Information authority of Japan, vol 59 (December 2011)
PermalinkUtilisation de la technique du nivellement par GPS pour l'élaboration des surfaces de conversions altimétriques / S. Medjahed in Bulletin des sciences géographiques, n° 26 (octobre 2011)
PermalinkHyperboloïdal coordinates : transformations and applications in special constructions / J. Feltens in Journal of geodesy, vol 85 n° 4 (April 2011)
PermalinkLa navigation saharienne avant le GPS : seconde partie : Le compas solaire Abrams et astronomie de position / Paul Courbon in XYZ, n° 126 (mars - mai 2011)
PermalinkAn analytical method to transform geocentric into geodetic coordinates / H. Vermeille in Journal of geodesy, vol 85 n° 2 (February 2011)
PermalinkAnnuaire du Bureau des longitudes, Guide de données astronomiques 2012 pour l'observation du ciel / Bureau des longitudes (2011)
PermalinkPermalinkHellenic terrestrial reference system 2007 (HTRS07): a regional realization of ETRS89 over Greece in support of HEPOS / K. Katsampalos in Bulletin of geodesy and geomatics BGG, vol 69 n° 2 - 3 (December 2010)
PermalinkMeasurement accuracy in Network-RTK / R. Emardson in Bulletin of geodesy and geomatics BGG, vol 69 n° 2 - 3 (December 2010)
PermalinkLa navigation saharienne avant le GPS. Première partie : les compas solaires analemmatiques de Tételin / Raymond d' Hollander in XYZ, n° 125 (décembre 2010 - février 2011)
PermalinkThe combination of GNSS-levelling data and gravimetric (quasi-) geoid heights in the presence of noise / R. Klees in Journal of geodesy, vol 84 n° 12 (December 2010)
PermalinkPermalinkExploiting geographic references of documents in a geographical information retrieval system using an ontology-based index / N. Brisaboa in Geoinformatica, vol 14 n° 3 (July 2010)
PermalinkTopographically induced height errors in predicted atmospheric loading effects / Tonie M. van Dam in Journal of geophysical research : Solid Earth, Vol 115 n° B7 (July 2010)
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PermalinkModélisation des retards troposphériques pour les observations GPS et impacts sur l'estimation de la hauteur ellipsoïdale / François Fund in XYZ, n° 123 (juin - août 2010)
PermalinkProblèmes de calage de la carte historique de Rome (1908) à l'échelle 1:5 000 / Valerio Baiocchi in Géomatique expert, n° 74 (01/04/2010)
PermalinkConstruction of spherical harmonic series for the potential derivatives of arbitrary orders in the geocentric Earth-fixed reference frame / M. Petrovskaya in Journal of geodesy, vol 84 n° 3 (March 2010)
PermalinkFME 2010 : Taking spatial ETL [Extract-Transform-Load] technology to new heights / F. Artes in Geoinformatics, vol 13 n° 2 (01/03/2010)
PermalinkRelation between the Italian and European height systems / Alessandro Caporali in Bulletin of geodesy and geomatics BGG, vol 69 n° 1 (March 2010)
PermalinkA bias-free geodetic boundary value problem approach to height datum unification / Alireza A. Ardalan in Journal of geodesy, vol 84 n° 2 (February 2010)
PermalinkAnnuaire du Bureau des longitudes, Guide de données astronomiques 2011 pour l'observation du ciel / Bureau des longitudes (2010)
PermalinkIntégrer les coordonnées géographiques dans une analyse multivariée / Françoise de Blomac in SIG la lettre, n° 113 (janvier 2010)
PermalinkMéthodologie GPS, mesure des déformations verticales et humidité atmosphérique / Marie-Noëlle Bouin (2010)
PermalinkProposal of nomenclatures of the new official sheets of the Republic of Croatia / Z. Hecimovic (01/01/2010)
PermalinkSpace-time reference systems for monitoring global change and for precise navigation / Axel Nothnagel (2010)
PermalinkVers une nouvelle représentation des déformations horizontales de la croûte terrestre et de leurs erreurs avec un champ régulier de tenseurs / Leila Eissa in XYZ, n° 121 (décembre 2009 - février 2010)
PermalinkIntroducing scale parameters for adjusting area objects in GIS based on least squares and variance component estimation / X. Tong in International journal of geographical information science IJGIS, vol 23 n°11-12 (november 2009)
PermalinkPermalinkGeolocation and time: an evolution of the millennial pair, Part 1 / J. Triglav in Geoinformatics, vol 12 n° 7 (01/10/2009)
PermalinkDetermination and analysis of stations coordinates based on Starlette and Lageos-1 & -2 satellites laser ranging data / Bachir Gourine in Bulletin des sciences géographiques, n° 24 (Septembre 2009)
PermalinkGreenwich or not Greenwich : ou pourquoi le méridien zéro du système GPS est à plus de 100 mètres à l'est du trait méridien de l'observatoire de Greenwich / R. Vincent in XYZ, n° 120 (septembre - novembre 2009)
PermalinkQuality assessment for GPS-supported bundle block adjustment based on aerial digital frame imagery / X. Yuan in Photogrammetric record, vol 24 n° 126 (June - August 2009)
PermalinkA geodesic map projection for quadrilaterals / J. Crider in Cartography and Geographic Information Science, vol 36 n° 2 (April 2009)
PermalinkAnnuaire du Bureau des Longitudes, Guide de données astronomiques 2010, pour l'observation du ciel / Bureau des longitudes (2009)
PermalinkDéfinition de la nouvelle mensuration nationale de la Suisse 'MN95'. 13ème partie Introduction du cadre de référence 'MN95' dans l'infrastructure nationale de données géographiques / B. Vogel (2009)
PermalinkPermalinkChoix optimal du modèle troposphérique pour la détermination précise des coordonnées des stations GPS / Salem Kahlouche in Bulletin des sciences géographiques, n° 22 (octobre 2008)
PermalinkPositionnement de puits déviés : Implémentation des corrections à envisager lors de la représentation des trajectoires de puits déviés en projection cartographique propositions et analyses de trois méthodologies possibles / A. Billault in XYZ, n° 116 (septembre - novembre 2008)
PermalinkThe effect of tropospheric delay on GPS height differences along the Equator / J. Dodo in SaLIS Surveying and land information science, vol 68 n° 3 (September 2008)
PermalinkA data-driven approach to local gravity field modelling using spherical radial basis functions / R. Klees in Journal of geodesy, vol 82 n° 8 (August 2008)
PermalinkVector methods to compute azimuth, elevation, ellipsoidal, normal, and the cartesian (XYZ) to geodetic (p , a , h) transformation / J. Feltens in Journal of geodesy, vol 82 n° 8 (August 2008)
PermalinkPermalinkStandards in practice, part 8 : KML, Keyhole Markup Language / H. Lekkerkerk in Geoinformatics, vol 11 n° 5 (01/07/2008)
PermalinkGauss Kruger projection for areas of wide longitudinal extent / C. Enriquez Turino in International journal of geographical information science IJGIS, vol 22 n° 6-7 (june 2008)
PermalinkOn the multivariate total least-squares approach to empirical coordinate transformations: three algorithms / Burkhard Schaffrin in Journal of geodesy, vol 82 n° 6 (June 2008)
PermalinkTransforming ellipsoidal heights and geoid undulations between different geodetic reference frames / C. Kotsakis in Journal of geodesy, vol 82 n° 4-5 (April - May 2008)
PermalinkOfficial GNSS-derived vertical orthometric height control network / G. Steinberg in SaLIS Surveying and land information science, vol 68 n° 1 (March 2008)
PermalinkAnnuaire du Bureau des Longitudes, Guide de données astronomiques 2009, pour l'observation du ciel / Bureau des longitudes (2008)
PermalinkPermalinkPermalinkPermalinkPermalinkBringing all GNSS into line: new assistance standards embrace Galileo, Glonass, QZSS [Japanese quasi-zenith satellite system], SBAS [space-based augmentation system] / L. Wirola in GPS world, vol 18 n° 9 (September 2007)
PermalinkPractical geodesy: part 5 chart projections / H. Lekkerkerk in Geoinformatics, vol 10 n° 6 (01/09/2007)
PermalinkGestion des liens entre la représentation spatiale et les informations alphanumériques associées à un objet géographique : Généralisation aux représentations composites et non simplement connexes / J. Lecoq in Revue internationale de géomatique, vol 17 n° 1 (mars – mai 2007)
PermalinkPermalinkPermalinkAn integrated approach for modelling and global registration of point clouds / T. Rabbani in ISPRS Journal of photogrammetry and remote sensing, vol 61 n° 6 (February 2007)
PermalinkOfficial geoid undulations model: substitute for nationwide orthometric control network / G. Steinberg in GIM international, vol 21 n° 2 (February 2007)
PermalinkAn Improved mean-gravity model for GPS hydrostatic delay calibration / Pierre Bosser in IEEE Geoscience and Remote Sensing Letters, vol 4 n° 1 (2007)
PermalinkAufbau der neuen Landesvermessung der Schweiz 'LV95'. Teil 12 Landeshöhennetz 'LHN95' / A. Schlatter (2007)
PermalinkPermalinkPermalinkNouveau système géodésique légal français, le RGF93 [Processus de transformation de coordonnées NTF - RGF93] / Serge Botton (2007)
PermalinkQuelques définitions sur les systèmes de références et de coordonnées [diaporama] / P. Rouffiac (2007)
PermalinkPermalinkConversion altimétrique des hauteurs ellipsoïdales par GPS / A. Zeggai in XYZ, n° 109 (décembre 2006 - février 2007)
PermalinkLarge scale reference database [le référentiel à grande échelle français] / R. Rollins in GIM international, vol 20 n° 9 (September 2006)
PermalinkWhat does height really mean? Part 3 height systems / Thomas H. Meyer in Surveying and land information science, vol 66 n° 2 (01/09/2006)
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