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Measurement accuracy in Network-RTK / R. Emardson in Bulletin of geodesy and geomatics BGG, vol 69 n° 2 - 3 (December 2010)

Public [article]  inBulletin of geodesy and geomatics BGG > vol 69 n° 2 - 3 (December 2010) . - pp 211 - 225 Titre : Measurement accuracy in Network-RTK Type de document : Article/Communication Auteurs : R. Emardson, Auteur ; P. Jarlemark, Auteur ; et al., Auteur Année de publication : 2010 Article en page(s) : pp 211 - 225 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale [Termes IGN] données BeiDou [Termes IGN] données Galileo [Termes IGN] données GLONASS [Termes IGN] données GPS [Termes IGN] erreur de positionnement [Termes IGN] hauteur ellipsoïdale [Termes IGN] positionnement cinématique en temps réel [Termes IGN] précision altimétrique [Termes IGN] précision du positionnement Résumé : (Auteur) New satellite systems such as the European Galileo and the ongoing modernization of GPS and GLONASS, allow for improvements in accurate positioning. Real Time Kinematic (RTK) is a system that utilises Global Navigation Satellite Systems (GNSS) to provide accurate positioning in real time. In this paper, we describe the error sources in network-RTK, and how the increased number of satellites and new signals are best served to achieve the desired improvement in performance. Using simulations we find that the inclusion of future satellite systems such as Galileo and Compass can reduce the error in the vertical coordinate of the estimated position from 27 mm to 20 mm for a reference network with 70 km between the reference stations. For periods with high spatial variability in the ionosphere, it is important to consider the tradeoff between influence from the ionosphere and from the local environment. A densified network with 35 km between the reference stations results in a similar improvement as the contribution of the new satellite systems. The error in the estimated vertical coordinate is reduced from 27 mm to 18 mm. Using both a densified network and the new satellite systems reduces the error further down to 13 mm. Numéro de notice : A2010-597 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31341 [article]

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