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Auteur Saurav Ranjit |
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Positional accuracy control in dense urban environment with low-cost receiver and multi-constellation GNSS / Yann Méneroux (2017)
Titre : Positional accuracy control in dense urban environment with low-cost receiver and multi-constellation GNSS Type de document : Article/Communication Auteurs : Yann Méneroux , Auteur ; Dinesh Manandhar, Auteur ; Saurav Ranjit, Auteur ; Guillaume Saint Pierre, Auteur ; Ryosuke Shibasaki, Auteur Editeur : Saint-Mandé : Institut national de l'information géographique et forestière - IGN (2012-) Année de publication : 2017 Projets : 1-Pas de projet / Conférence : MGA 2017, 9th Multi-GNSS Asia Conference 09/10/2017 11/10/2017 Jakarta Indonésie Importance : 5 p. Note générale : bibliographie
références https://hal.archives-ouvertes.fr/hal-02193751Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Navigation et positionnement
[Termes IGN] constellation
[Termes IGN] constellation BeiDou
[Termes IGN] constellation GLONASS
[Termes IGN] positionnement par GNSS
[Termes IGN] précision décimétrique
[Termes IGN] RTKLIBRésumé : (auteur) In this work, we investigate the effectiveness of a method leveraging multi-GNSS positioning with low-cost receiver to control the accuracy of a set of predefined points with short time acquisition and reduced sky view factor. Final accuracy is required to be sub-meter level. 20 positions located in Tokyo (Japan) have been observed for 6 minutes with a u-blox NEO M8T receiver and a L1-band antenna. Solutions have been computed with the free software RTKlib, for different combinations of satellite constellations. Eventually, we derived a probabilistic upper bound on the controlled points root mean square error (rmse) based on Rayleigh distribution and the central limit theorem. Results highlighted that completing GPS with one additional constellation may markedly reduce the predicted rmse as well as the convergence time. The gain in accuracy has been found to be more moderated when a maximal number of constellations is added, despite solution is reached much faster. We shall notice however that these findings may be dependent upon the selected mask angle for the computation. Some further analysis is also required to assess more precisely the respective contributions of GLONASS and Beidou systems in the overall enhancement. Numéro de notice : C2017-056 Affiliation des auteurs : LASTIG+Ext (2016-2019) Thématique : POSITIONNEMENT Nature : Communication nature-HAL : ComSansActesPubliés-Unpublished DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=97092 Documents numériques
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