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Auteur Waldemar Odziemczyk |
Documents disponibles écrits par cet auteur (3)
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Adjustment of observation accuracy harmonisation parameters in optimising the network’s reliability / Edward Nowak in Reports on geodesy and geoinformatics, vol 105 n° 1 (June 2018)
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Titre : Adjustment of observation accuracy harmonisation parameters in optimising the network’s reliability Type de document : Article/Communication Auteurs : Edward Nowak, Auteur ; Waldemar Odziemczyk, Auteur Année de publication : 2018 Article en page(s) : pp 53 – 59 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] fiabilité des données
[Termes IGN] harmonisation des donnéesRésumé : (Auteur) Appropriate precision and low cost are the basic conditions that have to be fulfilled by a project of a geodetic network. Reliability, translating into the ability to detect gross errors in the observations and higher certainty of the obtained point position, is an important network characteristic. The principal way to provide appropriate network reliability is to acquire a suitably large number of redundant observations. Optimisation of the observation accuracy harmonisation procedure allowing for the acquisition of an appropriate level of reliability through modification of the observation a priori standard deviations is the focus of this study. Parameterisation of the accuracy harmonisation is proposed. Furthermore, the influence of the individual parameter operation on the effectiveness of the harmonisation procedure is tested. Based on the results of the tests an optimal set of harmonisation parameters which guarantees the maximal efficiency of the harmonisation algorithm is proposed. Numéro de notice : A2018-441 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.2478/rgg-2018-0006 Date de publication en ligne : 17/07/2018 En ligne : https://doi.org/10.2478/rgg-2018-0006 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91012
in Reports on geodesy and geoinformatics > vol 105 n° 1 (June 2018) . - pp 53 – 59[article]Control network reliability reconstruction for Zatonie dam / Edward Nowak in Reports on geodesy and geoinformatics, vol 105 n° 1 (June 2018)
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Titre : Control network reliability reconstruction for Zatonie dam Type de document : Article/Communication Auteurs : Edward Nowak, Auteur ; Waldemar Odziemczyk, Auteur Année de publication : 2018 Article en page(s) : pp 1 – 5 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] auscultation d'ouvrage
[Termes IGN] barrage
[Termes IGN] déformation d'édifice
[Termes IGN] réseau géodésique spécifiqueRésumé : (Auteur) Absolute horizontal displacements are an important element of dam safety level assessment. Appropriate design of measurement network is a prerequisite for the acquisition of displacement values that meet the reliability requirements. A network of this kind, apart from ensuring the required precision of displacement determination, should be characterised by reliability allowing for elimination of gross errors in the results of geodetic surveys. This study aims to propose a method to improve reliability characteristic of surveying network used for horizontal displacement identification in Zatonie dam. The desired effect (increase in the network’s reliability) is obtained by the authors in two stages. The first stage concerns expansion of the existing network by addition of three free stations. As the obtained effect did not prove to be satisfactory, in the second stage so called observation accuracy harmonisation was carried out, which optimally utilises the reliability potential of the measurement construction. In order to successfully carry out the harmonisation, a modification to the procedure’s algorithm had to be introduced. A design of a network ensuring detection of a gross error in any given observation was obtained as the result of the performed actions. Numéro de notice : A2018-440 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.2478/rgg-2018-0001 Date de publication en ligne : 17/07/2018 En ligne : https://doi.org/10.2478/rgg-2018-0001 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91011
in Reports on geodesy and geoinformatics > vol 105 n° 1 (June 2018) . - pp 1 – 5[article]Accuracy analysis of a wireless indoor positioning system using geodetic methods / Przemysław Wagner in Reports on geodesy and geoinformatics, vol 104 n° 1 (December 2017)
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Titre : Accuracy analysis of a wireless indoor positioning system using geodetic methods Type de document : Article/Communication Auteurs : Przemysław Wagner, Auteur ; Marek Woźniak, Auteur ; Waldemar Odziemczyk, Auteur ; Dariusz Pakuła, Auteur Année de publication : 2017 Article en page(s) : pp 1 - 19 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Topographie
[Termes IGN] lever tachéométrique
[Termes IGN] positionnement en intérieur
[Termes IGN] précision du positionnement
[Termes IGN] tachéomètre électronique
[Termes IGN] temps réelRésumé : (Auteur) Ubisense RTLS is one of the Indoor positioning systems using an Ultra Wide Band. AOA and TDOA methods are used as a principle of positioning. The accuracy of positioning depends primarily on the accuracy of determined angles and distance differences. The paper presents the results of accuracy research which includes a theoretical accuracy prediction and a practical test. Theoretical accuracy was calculated for two variants of system components geometry, assuming the parameters declared by the system manufacturer. Total station measurements were taken as a reference during the practical test. The results of the analysis are presented in a graphical form. A sample implementation (MagMaster) developed by Globema is presented in the final part of the paper. Numéro de notice : A2017-793 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.1515/rgg-2017-0011 En ligne : https://doi.org/10.1515/rgg-2017-0011 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89070
in Reports on geodesy and geoinformatics > vol 104 n° 1 (December 2017) . - pp 1 - 19[article]