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Titre : IGS International GNSS Service technical report 2014 Type de document : Rapport Auteurs : Rolf Dach, Éditeur scientifique ; Yoomin Jean, Éditeur scientifique Editeur : Bern : Astronomical Institute Année de publication : 2015 Importance : 194 p. Format : 21 x 30 cm Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] Global Navigation Satellite SystemRésumé : (Editeur) Applications of the Global Navigation Satellite Systems (GNSS) to Earth Sciences are numerous. The International GNSS Service (IGS), a federation of government agencies, universities and research institutions, plays an increasingly critical role in support of GNSS–related research and engineering activities. This Technical Report 2014 includes contributions from the IGS Governing Board, the Central Bureau, Analysis Centers, Data Centers, station and network operators, working groups, pilot projects, and others highlighting status and important activities, changes and results that took place and were achieved during 2013. Note de contenu : 1. Executive Groups
- Governing Board / U. Hugentobler
- Central Bureau / R. Neilan, S. Fisher, R. Khachikyan, A. Craddock, D. Maggert, and G. Walia
2. Analysis Centers
Analysis Center Coordinator, No report submitted
- Center for Orbit Determination in Europe (CODE) / R. Dach, S. Schaer, S. Lutz, C. Baumann, H. Bock, E. Orliac, L. Prange, D. Thaller, L. Mervart, A. Jäggi, G. Beutler, E. Brockmann, D. Ineichen, A. Wiget, G. Weber, H. Habrich, W. Söhne, J. Ihde, P. Steigenberger, and U. Hugentobler
- Natural Resources Canada (NRCan) / B. Donahue, R. Ghoddousi–Fard, Y. Mireault, and F. Lahaye
- European Space Agency/European Space Operations Center (ESA/ESOC) / T. A. Springer, F. Dilssner, W. Enderle, J. Feltens, M. van Kints, I. Romero, E. Schoenemann, and R. Zandbergen
- GeoForschungsZentrum (GFZ) / M. Fritsche, Z. Deng, M. Ge, T. Nischan, M. Uhlemann, G. Beeskow,
A. Brandt, M. Bradke, and M. Ramatschi
- Geodetic Observatory Pecný (GOP), No report submitted
- Centre National d’Etudes Spatiales/Collecte Localisation Satellites (CNES/CLS) / S. Loyer, F. Mercier, F. Perosanz, H. Capdeville, A. Mezerette, and L. Lestarquit
- Jet Propulsion Laboratory (JPL) / S. Desai, W. Bertiger, M. Garcia-Fernandez, B. Haines, D. Kuang, C. Selle, A. Sibois, A. Sibthorpe, and J. Weiss
- Massachusetts Institute of Technology (MIT) No report submitted
- National Geodetic Survey (NGS) No report submitted
- Scripps Institution of Oceanography (SIO) No report submitted
- United States Naval Observatory (USNO) / C. Hackman, S. M. Byram, V. J. Slabinski, J. Tracey, and J. R. Rohde
- University of Wuhan (WHU) / C. Shi, M. Li, Q. Zhao, and Y. Lou
- EUREF Permanent Network (EPN) / C. Bruyninx, A. Araszkiewicz, E. Brockmann, A. Kenyeres, R. Pacione,
W. Söhne, G. Stangl, K. Szafranek, and C. Völksen
- SIRGAS / L. Sánchez
3. Data Centers
- Infrastructure Committee / I. Romero
- Crustal Dynamics Data Information System (CDDIS) / C. Noll
- Scripps Institution of Oceanography (SIO), No report submitted
- Institut National de l’Information Géographique et Forestière (IGN), No report submitted
- Korean Astronomy and Space Science Institute (KASI) No report submitted
4. Working Groups, Pilot Projects
- Antenna Working Group 133 / R. Schmid
- Bias and Calibration Working Group / S. Schaer
- Clock Products Working Group, No report submitted
- Data Center Working Group /C. Noll
- Ionosphere Working Group / A. Krankowski, Y. Cherniak, I. Zakharenkova, R. Langley, M.D. Butala,
A. Komjathy, T.F. Runge, B.D. Wilson, X. Pi, A.J. Mannucci, M. Hernandez–Pajares, and P. Vergados
- Multi–GNSS Working Group / O. Montenbruck and P. Steigenberger
- Space Vehicle Orbit Dynamics Working Group, No report submitted
- Real–Time Pilot Project / L. Agrotis, M. Caissy, A. Ruelke, and S. Fisher
- Reference Frame Working Group / P. Rebischung, B. Garayt, and Z. Altamimi
- RINEX Working Group, No report submitted
- Tide Gauge Benchmark Monitoring Project / T. Schöne, R. Bingley, Z. Deng, J. Griffiths, H. Habrich, A. Hunegnaw, M. Jia, M. King, M. Merrifield, G. Mitchum, R. Neilan, C. Noll, E. Prouteau, L. Sánchez, N. Teferle, D. Thaller, P. Tregoning, G. Wöppelmann, and P. Woodworth
- Troposphere Working Group / C. Hackman and S. ByramNuméro de notice : 17124 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Rapport DOI : sans En ligne : http://ftp://igs.org/pub/resource/pubs/2014_techreport_wDOI.pdf Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80361 ContientDocuments numériques
en open access
IGS technical report 2014Adobe Acrobat PDF
Titre : Korrektur stationsabhängiger Fehler bei GNSS Type de document : Thèse/HDR Auteurs : Andreas Knöpfler, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 2015 Collection : DGK - C, ISSN 0065-5325 num. 744 Importance : 177 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-5156-0 Note générale : bibliographie
akademisches Grades eines Doktor-Ingenieurs von der Fakultüt für Bauingenieur-, Geo- und Umweltwissenschaften des Karlsruher Instituts für TechnologieLangues : Allemand (ger) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] antenne GNSS
[Termes IGN] centre de phase
[Termes IGN] erreur systématique
[Termes IGN] étalonnage d'instrument
[Termes IGN] modèle d'erreur
[Termes IGN] positionnement ponctuel précis
[Termes IGN] positionnement statique
[Termes IGN] résidu
[Termes IGN] traitement de données GNSS
[Termes IGN] trajet multipleMots-clés libres : stacking map Index. décimale : 30.60 Géodésie spatiale Résumé : (auteur) Highly precise positioning techniques based on Global Navigation Satellite Systems (GNSS) have become a standard tool for numerous disciplines, benefitting from the continuous development of receiver equipment and the appearance of additional GNSS. In addition to the classical differential processing approach, the Precise Point Positioning (PPP) method is able to derive station coordinates with the same accuracy as a baseline setup, when sufficient observation time is available. The basis for PPP is the improved quality of external products for the GNSS data processing, for example the orbit and especially the satellite clock products of the International GNSS Service (IGS) and its analysis centers.
The increased usage of GNSS comes along with higher demands on accuracy. Therefore, the modelling of important error sources in GNSS is continuously upgraded. Intensive research led to a refinement of both the functional and the stochastic model in GNSS data processing in order to enable the correction of specific error components, for example the antenna behaviour or the tropospheric delay. Despite of the improvements in GNSS modelling, multipath effects still remain as a main error source in highly precise GNSS positioning. Within this work, stacking techniques are used to correct for multipath effects and further site dependent errors, for example residual errors in the calibration values of the receiving GNSS antenna. The method developed in this work is based on zero difference PPP residuals, which are accumulated over defined azimuth-elevation cells and over a fixed period of time (here: 10 d) and introduced as correction (so-called stacking maps) in a second PPP processing run. The main purpose of this approach aims for the improvement of data, recorded on continuously operating reference stations.
Within this work, two scenarios for the implementation of the corrections were investigated in detail: the combination of the stacking maps joined with the calibration information of the GNSS receiving antennas and in contrast to this approach the separate modelling of both aspects in a separate file. In order to check the effectivity of this method, the results (e.g., coordinates, residuals) before and after the introduction of the stacking maps were intensively analyzed. Within the second scenario (introduction of the correction in a separate file), the behaviour of the stacking maps over time was investigated by the analysis of so-called sliding stacking maps. Sliding stacking maps are generated as follows: calculation of a first stacking map from the residuals for example for day of year (DoY) 121 to 130 and introduction as correction for DoY 131, the next stacking map is computed from the residuals for DoY 122 to 131 and introduced for DoY 132 and so on. Especially sites with poor data quality show a significant improvement of the residual values after the implementation of stacked information. Furthermore, observations remain in the used data set, whereas they were eliminated in the processing without the introduction of stacking maps.
In addition, the necessity of expensive, site-dependent individual antenna calibration was checked. The focus was on the compensating level of the stacking approach with respect to unmodelled antenna effects based on the replacement of individual receiving antenna calibrations by type mean values of the IGS in combination with stacking maps. Therefore, data of selected sites were processed using both the existing individual antenna calibration sets and the IGS type mean values. In a second processing run, the calibration sets were introduced taking the corresponding stacking information into account. Differences in the phase center variations of the antennas can be corrected by the stacking maps. Discrepancies due to differences in the phase center offsets remain in the estimated site coordinates.Numéro de notice : 14920 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Thèse étrangère Note de thèse : PhD : Géodésie : Karlsruhes Institut für Technologie : 2015 DOI : 10.5445/KSP/1000045959 En ligne : https://doi.org/10.5445/KSP/1000045959 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=76931
Titre : Rapport d'activité 2014 Groupe de Recherche de Géodésie Spatiale GRGS Type de document : Rapport Auteurs : Pierre Exertier, Éditeur scientifique ; Richard Biancale, Éditeur scientifique Editeur : Paris : Groupe de Recherche de Géodésie Spatiale GRGS Année de publication : 2015 Importance : 157 p. Format : 21 x 30 cm Langues : Français (fre) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] champ de pesanteur terrestre
[Termes IGN] géodésie spatiale
[Termes IGN] International Terrestrial Reference Frame
[Termes IGN] mécanique orbitale
[Termes IGN] système de référence célesteNuméro de notice : 14856 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Rapport d'activité Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75774 Documents numériques
en open access
14856 RA 2014 du GRGSAdobe Acrobat PDF
[article]
Titre : BeiDou belongs to China, and to the World Type de document : Article/Communication Auteurs : Li Wang, Auteur Année de publication : 2014 Article en page(s) : pp. 30 - 31 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] constellation BeiDou
[Termes IGN] géodésie spatiale
[Termes IGN] positionnement par GNSS
[Termes IGN] signal BeiDouIndex. décimale : 30.61 Systèmes de Positionnement par Satellites du GNSS Résumé : (Auteur)[introduction] By adhering to the principles of independences, openess, compatibility and gradualness, China is steadly accelerating the construction and development of the BeiDou Navigation Satellite System. Numéro de notice : A2014-612 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans En ligne : http://gpsworld.com/directions-2015-beidou-belongs-to-china-and-to-the-world/ Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74881
in GPS world > vol 25 n° 12 (décembre 2014) . - pp. 30 - 31[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 067-2014121 RAB Revue Centre de documentation En réserve L003 Disponible
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Titre : Galileo looks ahead to early services Type de document : Article/Communication Auteurs : Anonyme, Auteur Année de publication : 2014 Article en page(s) : pp. 32 - 33 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] constellation Galileo
[Termes IGN] European Geostationary Navigation Overlay Service
[Termes IGN] positionnement par GNSS
[Termes IGN] signal GalileoIndex. décimale : 30.61 Systèmes de Positionnement par Satellites du GNSS Résumé : (auteur) [introduction] The European GNSS Agency (GSA) hosted the ninth meeting of the International committee on Global Navigation Satellite System (ICG) in november at its headquaters in Prague, Czech Republic.[...] Joining GPS, GLONASS, BeiDou, IRNSS/GaGAN, and QZSS was Galileo, represented by Christian Siebert, head of unit, Galileo EGNOS. Numéro de notice : A2014-596 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans En ligne : http://gpsworld.com/directions-2015-galileo-looks-ahead-to-early-services/ Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74882
in GPS world > vol 25 n° 12 (décembre 2014) . - pp. 32 - 33[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 067-2014121 RAB Revue Centre de documentation En réserve L003 Disponible PermalinkA Realistic and Easy-to-Implement Weighting Model for GPS Phase Observations / Xiaoguang Luo in IEEE Transactions on geoscience and remote sensing, vol 52 n° 10 tome 1 (October 2014)Permalinkvol 25 n° 9 - September 2014 (Bulletin de GPS world)PermalinkIGS-MGEX, on prépare le terrain pour les sciences et techniques GNSS multi-constellation / Oliver Montenbruck in XYZ, n° 140 (septembre - novembre 2014)Permalinkvol 25 n° 8 - August 2014 (Bulletin de GPS world)Permalinkvol 25 n° 7 - July 2014 (Bulletin de GPS world)PermalinkContinental hydrology loading observed by VLBI measurements / David Eriksson in Journal of geodesy, vol 88 n° 7 (July 2014)Permalinkvol 25 n° 6 - June 2014 (Bulletin de GPS world)PermalinkLimnimétrie par réflectométrie GNSS à faible coût / Eduardo Rodrigues in XYZ, n° 139 (juin - août 2014)PermalinkSurcharges océaniques dans les signaux GPS : la quète de l'extrêmement petit / Christine Heimlich in XYZ, n° 139 (juin - août 2014)PermalinkThe European way: Performance of the Galileo single-frequency ionospheric correction during in-orbit validation / Roberto Prieto-Cerdeira in GPS world, vol 25 n° 6 (June 2014)Permalinkvol 25 n° 5 - May 2014 (Bulletin de GPS world)PermalinkApplication of SWACI products as ionospheric correction for single-point positioning: a comparative study / David Minkwitz in Journal of geodesy, vol 88 n° 5 (May 2014)PermalinkEarth orientation parameters estimated from VLBI during the CONT11 campaign / Tobias Nilsson in Journal of geodesy, vol 88 n° 5 (May 2014)PermalinkGeneralized integer aperture estimation for partial GNSS ambiguity fixing / Andreas Brack in Journal of geodesy, vol 88 n° 5 (May 2014)Permalinkvol 25 n° 4 - April 2014 (Bulletin de GPS world)PermalinkExpert advice: Common standards for GPS workflows / Mike Botts in GPS world, vol 25 n° 4 (April 2014)Permalinkvol 25 n° 3 - March 2014 (Bulletin de GPS world)PermalinkAlgerian augmentation positioning system (SAAP) / Hassen Abdellaoui in Bulletin des sciences géographiques, n° 29 (janvier - juin 2014)PermalinkAnalyse des séries temporelles de coordonnées des sites multi-techniques (SLR, VLBI, DORIS et GPS) / Bachir Gourine in Bulletin des sciences géographiques, n° 29 (janvier - juin 2014)Permalink