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One continent, one representation / IGN France International IFI in GEO: Geoconnexion international, vol 15 n° 9 (October 2016)
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Titre : One continent, one representation Type de document : Article/Communication Auteurs : IGN France International IFI, Auteur ; Institut national de l'information géographique et forestière (2012 -), Auteur Année de publication : 2016 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] Afrique (géographie politique)
[Termes IGN] IGN France international
[Termes IGN] Institut national de l'information géographique et forestière (France)
[Termes IGN] système de référence géodésiqueRésumé : (éditeur) IGN FI, IGN France and UNECA [United Nations Economic Commission for Africa] look at progress on AFREF, a common geodetic Reference frame that can be used by all the countries in Africa Numéro de notice : A2016-744 Affiliation des auteurs : IGN+Ext (2012-2019) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtSansCL DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=82283
in GEO: Geoconnexion international > vol 15 n° 9 (October 2016)[article]Outlier detection by using fault detection and isolation techniques in geodetic networks / U.M. Durdag in Survey review, vol 48 n° 351 (October 2016)
[article]
Titre : Outlier detection by using fault detection and isolation techniques in geodetic networks Type de document : Article/Communication Auteurs : U.M. Durdag, Auteur ; S. Hekimoglu, Auteur ; B. Erdogan, Auteur Année de publication : 2016 Article en page(s) : pp 400 - 408 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] coordonnées GNSS
[Termes IGN] décomposition
[Termes IGN] données GNSS
[Termes IGN] méthode de Monte-Carlo
[Termes IGN] système de référence géodésique
[Termes IGN] valeur aberranteRésumé : (Auteur) Fault detection and isolation (FDI) techniques, which are called standard parity space approach (SPSA) and optimal parity vector approach (OPVA), have been presented in literature extensively for engineering sensor systems or sensor networks. This paper demonstrates the abilities of these approaches to detect and isolate outliers in geodetic networks. The ability to detect and isolate outliers has been measured by computing the mean success rate (MSR) for some given probability of significance levels. These approaches have been applied to a levelling network and a Global Navigation Satellite System (GNSS) network. Different matrix decomposition techniques have been used as an alternative way to the Potter algorithm, which is used in SPSA and OPVA. It has been proven that the abilities of FDI techniques, i.e. the MSRs of OPVA, increase with regard to the ones of SPSA in the levelling network and the GNSS network especially if the significance level α is chosen as 0.001 by using Monte–Carlo simulation. Numéro de notice : A2016-822 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.1179/1752270615Y.0000000038 En ligne : https://doi.org/10.1179/1752270615Y.0000000038 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=82638
in Survey review > vol 48 n° 351 (October 2016) . - pp 400 - 408[article]Monitoring the oldest datum / John Stenmark in GEO: Geoconnexion international, vol 15 n° 8 (September 2016)
[article]
Titre : Monitoring the oldest datum Type de document : Article/Communication Auteurs : John Stenmark, Auteur Année de publication : 2016 Article en page(s) : pp 646 - 650 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] changement climatique
[Termes IGN] géodésie spatiale
[Termes IGN] montée du niveau de la mer
[Termes IGN] système de référence géodésiqueRésumé : (éditeur) Rising oceans present challenges for natural and manmade coastal environments. GNSS is helping to provide a solid foundation for research on the rates and effects of changes in sea level. John Stenmark reports. Numéro de notice : A2016-665 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81896
in GEO: Geoconnexion international > vol 15 n° 8 (September 2016) . - pp 646 - 650[article]The SMITSWAM method of datum transformations consisting of Standard Molodensky in two stages with applied misclosures / Andrew Carey Ruffhead in Survey review, vol 48 n° 350 (September 2016)
[article]
Titre : The SMITSWAM method of datum transformations consisting of Standard Molodensky in two stages with applied misclosures Type de document : Article/Communication Auteurs : Andrew Carey Ruffhead, Auteur Année de publication : 2016 Article en page(s) : pp 376 - 384 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] approximation
[Termes IGN] ellipsoïde (géodésie)
[Termes IGN] transformation de coordonnéesRésumé : (auteur) For three-parameter datum transformations to be applied rigorously, geodetic coordinates on the first ellipsoid need to be converted to Cartesian coordinates before application of the shifts, then converted to geodetic coordinates on the second ellipsoid. The Standard Molodensky method of datum transformation is more direct but is inexact. It also fails to reproduce the original coordinates when applied forward and back. However, this paper shows a pattern of proportionality between the misclosures and the errors in the forward approximations. This gives rise to a new method of computing the transformations, best described as “Standard Molodensky in two stages with applied misclosures” (SMITSWAM). The method is shown to be more than 1600 times more accurate than Standard Molodensky, coming close to the accuracy of the rigorous approach. SMITSWAM is also shown to be around 48% faster than the traditional form of the rigorous method which uses iteration. Numéro de notice : A2016-643 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.1080/00396265.2016.1191748 En ligne : https://doi.org/10.1080/00396265.2016.1191748 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81848
in Survey review > vol 48 n° 350 (September 2016) . - pp 376 - 384[article]
[article]
Titre : IVS contribution to ITRF2014 Type de document : Article/Communication Auteurs : Sabine Bachmann, Auteur ; Daniela Thaller, Auteur ; Ole Roggenbuck, Auteur ; et al., Auteur Année de publication : 2016 Article en page(s) : pp 631 – 654 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] coordonnées géodésiques
[Termes IGN] International Terrestrial Reference System
[Termes IGN] précision des données
[Termes IGN] station de référence
[Termes IGN] station permanente
[Termes IGN] station VLBIRésumé : (auteur) Every few years the International Terrestrial Reference System (ITRS) Center of the International Earth Rotation and Reference Systems Service (IERS) decides to generate a new version of the International Terrestrial Reference Frame (ITRF). For the upcoming ITRF2014 the official contribution of the International VLBI Service for Geodesy and Astrometry (IVS) comprises 5796 combined sessions in SINEX file format from 1979.6 to 2015.0 containing 158 stations, overall. Nine AC contributions were included in the combination process, using five different software packages. Station coordinate time series of the combined solution show an overall repeatability of 3.3 mm for the north, 4.3 mm for the east and 7.5 mm for the height component over all stations. The minimum repeatabilities are 1.5 mm for north, 2.1 mm for east and 2.9 mm for height. One of the important differences between the IVS contribution to the ITRF2014 and the routine IVS combination is the omission of the correction for non-tidal atmospheric pressure loading (NTAL). Comparisons between the amplitudes of the annual signals derived by the VLBI observations and the annual signals from an NTAL model show that for some stations, NTAL has a high impact on station height variation. For other stations, the effect of NTAL is low. Occasionally other loading effects have a higher influence (e.g. continental water storage loading). External comparisons of the scale parameter between the VTRF2014 (a TRF based on combined VLBI solutions), DTRF2008 (DGFI-TUM realization of ITRS) and ITRF2008 revealed a significant difference in the scale. A scale difference of 0.11 ppb (i.e. 0.7 mm on the Earth’s surface) has been detected between the VTRF2014 and the DTRF2008, and a scale difference of 0.44 ppb (i.e. 2.8 mm on the Earth’s surface) between the VTRF2014 and ITRF2008. Internal comparisons between the EOP of the combined solution and the individual solutions from the AC contributions show a WRMS in X- and Y-Pole between 40 and 100 μas and for dUT1 between 5 and 15 μs. External comparisons with respect to the IERS-08-C04 series show a WRMS of 132 and 143 μas for X- and Y-Pole, respectively, and 13 μs for dUT. Numéro de notice : A2016-426 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-016-0899-4 En ligne : http://dx.doi.org/10.1007/s00190-016-0899-4 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81320
in Journal of geodesy > vol 90 n° 7 (July 2016) . - pp 631 – 654[article]The African geodetic reference frame / Richard Wonnacott in GIM international [en ligne], vol 30 n° 7 (July 2016)PermalinkPermalinkEmpirical methods of reducing the observations in geodetic networks / Roman Kadaj in Geodesy and cartography, vol 65 n° 1 (June 2016)PermalinkMesure de robustesse d'un réseau géodésique 3D : cas du réseau GPS de la ville d'Oran (Algérie) / Bachir Gourine in XYZ, n° 147 (juin - août 2016)PermalinkOptimization of observation plan based on the stochastic characteristics of the geodetic network / Wojciech Pachelski in Reports on geodesy and geoinformatics, vol 101 (June 2016)PermalinkTechnical considerations for modernizing Nova Scotia’s Coordinate Referencing System / Jason Bond in Geomatica, vol 70 n° 2 (June 2016)PermalinkTransformation des coordonnées relevées sur la carte topographique ancienne en coordonnées géodésiques RGC11 au Cameroun / Joseph Kamguia in XYZ, n° 147 (juin - août 2016)PermalinkShort-term and long-term variability of antenna position due to thermal bending of pillar monument at permanent GNSS station / Lubomira Gerhatova in Reports on geodesy and geoinformatics, vol 100 (May 2016)PermalinkAbsolute IGS antenna phase center model igs08.atx: status and potential improvements / Ralf Schmid in Journal of geodesy, vol 90 n° 4 (April 2016)PermalinkFaire re-naître la frontière franco-genevoise / Marc Chanoz in Géomètre, n° 2134 (mars 2016)PermalinkPermalinkThe Canadian Geodetic Vertical Datum of 2013 (CGVD2013) / Marc Véronneau in Geomatica, vol 70 n° 1 (March 2016)PermalinkArta geophysical observatory (Republic of Djibouti) ITRF local tie survey, version 1 / Jean-Claude Poyard (2016)PermalinkCombination of GNSS and SLR measurements : contribution to the realization of the terrestrial reference frame / Sara Bruni (2016)PermalinkPermalinkPermalinkPermalinkIGS International GNSS Service technical report 2015. IGS Reference frame working group coordinator report 2015 / Paul Rebischung (2016)PermalinkPermalinkPermalinkPermalinkPermalinkSpécifications d’intégration d’une station GNSS permanente dans le RGP, version 2 / Sébastien Saur (2016)PermalinkThe International DORIS Service (IDS) : Recent developments in preparation for ITRF2013 / Pascal Willis (2016)PermalinkThe NKG2008 GPS campaign – final transformation results and a new common Nordic reference frame / P. Häkli in Journal of geodetic science, vol 6 n° 1 (January 2016)PermalinkVers la prise en compte de la dépendance spatio temporelle des séries de position GNSS dans leur analyse / Clément Benoist (2016)PermalinkPermalinkAn overview of scientific and professional projects in the field of basic geodetic works at the territory of Republic of Croatia in period from 1991–2009 / Marko Pavasović in Geodetski vestnik, vol 59 n° 4 (December 2015 - February 2016)PermalinkModernization of the Nova Scotia coordinate referencing system through active control technology / Jason Bond in Geomatica, vol 69 n° 4 (December 2015)PermalinkReference frames and reference networks / Jaroslaw Bosy in Geodesy and cartography, vol 64 n° 2 (December 2015)PermalinkEstablishment of new Oman National Geodetic Datum ONGD14 / Y. Al-Toobi in Survey review, vol 47 n° 345 (November 2015)PermalinkGlobal optimization of GNSS station reference networks / David Coulot in GPS solutions, vol 19 n° 4 (october 2015)PermalinkPermalinkL'ITRF fête ses trente ans / Anonyme in Géomatique expert, n° 105 (juillet - août 2015)PermalinkLa démarche française de modernisation de la référence verticale / Françoise Duquenne in XYZ, n° 143 (juin - août 2015)PermalinkOutlier Detection by means of Monte Carlo Estimation including resistant Scale Estimation / Christian Marx in Journal of applied geodesy, vol 9 n° 2 (June 2015)PermalinkApplication of Msplit estimation to determine control points displacements in networks with unstable reference system / M. H. Zienkiewicz in Survey review, vol 47 n° 342 (May 2015)PermalinkPermalinkKALREF, a Kalman filter and time series approach to the International Terrestrial Reference Frame realization / Xiaoping Wu in Journal of geophysical research : Solid Earth, vol 120 n° 5 (May 2015)PermalinkMulti-GNSS enabling Australia's positioning infrastructure / Matt Higgins in Position, n° 76 (April - May 2015)PermalinkThe reference frame In practice / Rob Sarib in GEO: Geoconnexion international, vol 14 n° 5 (May 2015)PermalinkThree-Corner Hat for the assessment of the uncertainty of non-linear residuals of space-geodetic time series in the context of terrestrial reference frame analysis / Claudio Abbondanza in Journal of geodesy, vol 89 n° 4 (April 2015)PermalinkPermalinkDétermination GNSS de bornes de la frontière de la Guyane française dans le cadre du « raid des 7 bornes », version 1 / Samuel Branchu (2015)PermalinkPermalink