Browsing by Subject "GNSS"

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  • Tengen, Dieter; Riedel, Anika; Riedel, Björn; Gerke, Markus; Niemeier, Wolfgang (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2019)
    Die Ableitung und Modellierung von vertikalen Landbewegungen an der deutschen Nord- und Ostseeküste hat u.a. das Ziel, den Einfluss der Landsenkung bzw. –hebung an der Küste von scheinbaren Pegelanstiegen trennen zu können. ...
  • Ruwisch, Fabian; Ren, Le; Skupin, Christian; Kersten, Tobias; O'Connor, Marcus; Schön, Steffen; Wübbena, Temmo (Edinburgh : Royal Institute of Navigation, 2021-11-16)
    One of the most important functions for the safety of autonomous driving is the self-localisation of a moving platform. The GNSS (Global Navigation Satellite System) sensor is - compared to other sensors as, e.g., video, ...
  • Kersten, Tobias; Schön, Steffen (Piscataway, NJ : IEEE, 2012)
    The Institut für Erdmessung (IfE) is an official IGS calibration institution, calibrating phase center variations (PCV) for receiver antennae routinely in the field, using the actual GNSS satellite signals in space. Current ...
  • Kröger, Johannes; Breva, Yannick; Kersten, Tobias; Schön, Steffen (Stuttgart : Frontiers of Geodetic Science, 2019-09-17)
    Eine genaue Positionsbestimmung mittels GNSS basiert auf einem präzisen Signalempfang. Im Falle von Trägerphasenmessung stellt ein gleichförmiger Kugelstrahler eine ideale Empfängerantenne dar. Abweichungen von dieser ...
  • Kersten, Tobias (München : C.H. Beck, 2014-12)
    Die globale Positionierung, Navigation sowie Zeit- und Frequenzübertragung [positioning, navigation and timing] (PNT) ist in der heutigen Gesellschaft zu einem integralen Bestandteil des täglichen Lebens geworden, so dass ...
  • Smyrnaios, Marios (Hannover : Leibniz Universität Hannover, 2016)
    [no abstract]
  • Breva, Yannick; Kröger, Johannes; Kersten, Tobias; Schön, Steffen (Vienna, Austria : European Geophysical Union (EGU), 2020)
    In absolute positioning approaches, e.g. Precise Point Positioning (PPP), antenna phase center corrections (PCC) have to be taking into account. Beside PCC for carrier phase measurements, also codephase center corrections ...
  • Kersten, Tobias; Kröger, Johannes; Breva, Yannick; Schön, Steffen (München : European Geosciences Union, 2019-04-08)
    Precise GNSS applications like positioning, navigation and timing (PNT) as well as troposphere studies require consistent and accurate calibration values of receiver antennas. Nowadays, they are available by several ...
  • Kröger, Johannes; Breva, Yannick; Kersten, Tobias; Schön, Steffen (Zürich : European Space Agency (ESA) and ETH Zürich, 2019-09-04)
    GNSS are widely used for positioning, navigation and timing (PVT). The quality of results depends on the antenna in use and the capability to take antenna specific effects into account. The most prominent corrections are ...
  • Breva, Yannick; Kröger, Johannes; Kersten, Tobias; Schön, Steffen (Zürich : European Space Agency (ESA) and ETH Zürich, 2019-09-04)
    Besides antenna phase center corrections (PCC) for carrier phase measurements, which have to be considered for precise GNSS application, also codephase variations (CPV) exist. These are antenna dependent delays of the code ...
  • Icking, Lucy (Hannover : Gottfried Wilhelm Leibniz Universität, Institut für Erdmessung, 2019-09-11)
    Urban environments still form a challenge for Global Navigation Satellite System (GNSS) positioning due to its diffcult conditions for signal propagation. Many obstruction sources disturb the GNSS signal, signal loss or ...
  • Kersten, Tobias; Paffenholz, Jens-André (Basel : MDPI, 2020)
    Various GNSS applications require low-cost, small-scale, lightweight and power-saving GNSS devices and require high precision in terms of low noise for carrier phase and code observations. Applications vary from navigation ...
  • Kersten, Tobias; Kobe, Martin; Gabriel, Gerald; Timmen, Ludger; Schön, Steffen; Vogel, Detlef (Berlin : De Gruyter, 2017)
    The research project SIMULTAN applies an advanced combination of geophysical, geodetic, and modelling techniques to gain a better understanding of the evolution and characteristics of sinkholes. Sinkholes are inherently ...
  • Koch, Igor; Shabanloui, Akbar; Flury, Jakob; Müller, Jürgen (2017-07-30)
    In this study, two approaches for the determination of total non-gravitational accelerations acting on GRACE were investigated. To investigate two approaches, GRACE Level-1B data including accelerometer sensor data, GNSS ...
  • Darugna, Francesco; Wübbena, Jannes B.; Wübbena, Gerhard; Schmitz, Martin; Schön, Steffen; Warneke, André (Berlin : Springer, 2020)
    The access to Android-based Global Navigation Satellite Systems (GNSS) raw measurements has become a strong motivation to investigate the feasibility of smartphone-based positioning. Since the beginning of this research, ...
  • Krawinkel, Thomas (München : Verlag der Bayerischen Akademie der Wissenschaften, 2018)
    The determination of position and time as well as navigation by means of a Global Navigation Satellite System (GNSS) is always based on one-way range measurements between satellites and receiver. Synchronization of their ...
  • Nadarajah, Nandakumaran; Paffenholz, Jens-André; Teunissen, Peter J.G. (Basel : MDPI AG, 2014-07-17)
    Direct geo-referencing is an efficient methodology for the fast acquisition of 3D spatial data. It requires the fusion of spatial data acquisition sensors with navigation sensors, such as Global Navigation Satellite System ...
  • Schön, Steffen (Katlenburg-Lindau : Copernicus Publications, 2020)
    Photogrammetric methods and sensors like LIDAR, RADAR and cameras are becoming more and more important for new applications like highly automatic driving, since they enable capturing relative information of the ego vehicle ...
  • Schön, Steffen; Brenner, Claus; Alkhatib, Hamza; Coenen, Max; Dbouk, Hani; Garcia-Fernandez, Nicolas; Fischer, Colin; Heipke, Christian; Lohmann, Katja; Neumann, Ingo; Nguyen, Uyen; Paffenholz, Jens-André; Peters, Torben; Rottensteiner, Franz; Schachtschneider, Julia; Sester, Monika; Sun, Ligang; Vogel, Sören; Voges, Raphael; Wagner, Bernardo (Basel : MDPI AG, 2018)
    Global Navigation Satellite Systems (GNSS) deliver absolute position and velocity, as well as time information (P, V, T). However, in urban areas, the GNSS navigation performance is restricted due to signal obstructions ...
  • Breva, Yannick; Kröger, Johannes; Kersten, Tobias; Schöne, Steffen (Stuttgart : Frontiers of Geodetic Science, 2019-09-19)
    Für hochpräzise GNSS-Anwendungen sind Trägerphasenmessungen unabdingbar. Bei solchen Messungen ist es notwendig die individuellen Antennenphasenzentrumskorrekturen (PCC) zu berücksichtigen. Ähnliche Korrekturen existieren ...