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Precision analysis of Trimble Rtx surveying technology with Xfill function in the context of obtained conversion observations / Robert Krzyzek in Reports on geodesy and geoinformatics, vol 97 (December 2014)  

Public [article]  inReports on geodesy and geoinformatics > vol 97 (December 2014) . - pp 47 - 70 Titre : Precision analysis of Trimble Rtx surveying technology with Xfill function in the context of obtained conversion observations Type de document : Article/Communication Auteurs : Robert Krzyzek, Auteur Année de publication : 2015 Article en page(s) : pp 47 - 70 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Topographie [Termes IGN] conversion de données [Termes IGN] GPS en mode cinématique [Termes IGN] positionnement cinématique en temps réel [Termes IGN] transformation de coordonnées Résumé : (auteur) As a result of traditional geodetic surveying we usually achieve observations which are then used for calculating rectangular coordinates onto a plane along with precision evaluation. In this article the surveying methods are presented in which the situation is different. Test measurements were carried out, consisting in the measurement of a fragment of detailed control network in RTK (Real Time Kinematic) and RTX (Real Time Extended) mode with xFill function. First, the rectangular coordinates onto a plane (through the transformation of data ellipsoidal) were obtained, on the basis of which the conversion observations were determined and they were compared with each other, as well as with reference parameters - conversion observations out of detailed control network adjustment with use of the method of least squares. The results of the study allow to verify the precision and application possibilities of conversion observations obtained thanks to Trimble RTX technology with xFill function. Application of this surveying method in typical geodetic tasks is fully justifiable. Nevertheless, it is recommendable to be aware of the correlations of absolute or relative values obtained in RTX procedure to reference parameters, which in turn will enable conclusive verification of the possibilities of Trimble RTX technology application in certain geodetic surveys. Numéro de notice : A2014-700 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.2478/rgg-2014-0011 En ligne : https://doi.org/10.2478/rgg-2014-0011 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75405 [article]

Development of large concrete object geometrical model based on terrestrial laser scanning / Janina Zaczek-Peplinska in Reports on geodesy and geoinformatics, vol 97 (December 2014)  

Public [article]  inReports on geodesy and geoinformatics > vol 97 (December 2014) . - pp 91 - 102 Titre : Development of large concrete object geometrical model based on terrestrial laser scanning Type de document : Article/Communication Auteurs : Janina Zaczek-Peplinska, Auteur ; Pavel Popielski, Auteur ; Adam Kasprzak, Auteur ; et al., Auteur Année de publication : 2015 Article en page(s) : pp 91 - 102 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Topographie [Termes IGN] auscultation d'ouvrage [Termes IGN] barrage [Termes IGN] déformation d'édifice [Termes IGN] surveillance d'ouvrage [Termes IGN] télémétrie laser terrestre Résumé : (auteur) The paper presents control periodic measurements of movements and survey of concrete dam on Dunajec River in Rożnów, Poland. Topographical survey was conducted using laser scanning technique. The goal of survey was data collection and creation of a geometrical model. Acquired cross- and horizontal sections were utilised to create a numerical model of object behaviour at various load depending of changing level of water in reservoir. Modelling was accomplished using finite elements technique. During the project an assessment was conducted to terrestrial laser scanning techniques for such type of research of large hydrotechnical objects such as gravitational water dams. Developed model can be used to define deformations and displacement prognosis. Numéro de notice : A2014-757 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.2478/rgg-2014-0014 En ligne : https://doi.org/10.2478/rgg-2014-0014 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=76298 [article]