Accuracy Analysis of a Wireless Indoor Positioning System Using Geodetic Methods
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Globema Sp. z o.o., Wita Stwosza 22, 02-661 Warszawa, Poland
Faculty of Geodesy and Cartography, Warsaw University of Technology, Warsaw, Poland
Submission date: 2016-10-24
Acceptance date: 2017-07-17
Online publication date: 2018-01-23
Publication date: 2017-12-20
Reports on Geodesy and Geoinformatics 2017;104:1–19
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.
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