Institut für Geodäsie und Geoinformation (IGG): Browsing Institut für Geodäsie und Geoinformation (IGG) by Subject "GNSS"
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Accurate georeferencing of TLS point clouds with short GNSS observation durations even under challenging measurement conditions
Zimmermann, Florian; Holst, Christoph; Klingbeil, Lasse; Kuhlmann, Heiner (2018-08-29)The accuracy of georeferenced TLS point clouds is directly influenced by site-dependent GNSS effects, deteriorating the accuracy of the ground control point coordinate estimation. Especially under challenging GNSS ... -
Analysis and mitigation of site-dependent effects in static and kinematic GNSS applications
Zimmermann, Florian (2020)Satellitensignale unterliegen auf ihrem Weg von der Satelliten- zur Empfangsantenne einer Vielzahl an Einflüssen die zu Abweichungen führen. Heutzutage stellen in vielen Anwendungsbereichen insbesondere die stationsspezifischen ... -
Investigations on the Influence of Antenna Near-field Effects and Satellite Obstruction on the Uncertainty of GNSS-based Distance Measurements
Zimmermann, Florian; Eling, Christian; Kuhlmann, Heiner (2016-03-31)Antenna near-field effects are one of the accuracy limiting factors on GNSS-based distance measurements. In order to analyse these influences, a measurement campaign at an EDM calibration baseline site with optimum GNSS ... -
A new approach for a kinematic-dynamic determination of low satellite orbits based on GNSS observations
Shabanloui, Akbar (2008)A new approach for the integrated kinematical-dynamical orbit determination of low flying satellites based on high-low GPS-SST observations is proposed. These observations are code and carrier phase measurements between ... -
Zur Entwicklung und Bewertung der absoluten GNSS-Antennenkalibrierung im HF-Labor
Zeimetz, Philipp (2011)Bei der relativen Positionsbestimmung mit GNSS-Verfahren stellen die Antenneneinflüsse, die sich durch eine richtungsabhängige Empfangscharakteristik auszeichnen, einen der die Genauigkeit begrenzenden Faktoren dar. Durch ...