Auflistung Fakultät für Bauingenieurwesen und Geodäsie nach Autor/in "52576ac8-1472-444f-9da1-8a09c3398c1e"

Auflistung Fakultät für Bauingenieurwesen und Geodäsie nach Autor/in "52576ac8-1472-444f-9da1-8a09c3398c1e"

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  • Antennenspezifische Effekte - ein aktueller Überblick 
    Schön, Steffen; Kröger, Johannes; Kersten, Tobias; Breva, Yannick (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2023-09)
    Antennen sind das erste Element der Verarbeitungskette von GNSS-Signalen. Sie bestehen aus einem Antennenelement mit unterschiedlichem Gewinn für verschiedene Elevations- und Azimutbereiche und Signalpolarisationen, ...
  • Applying phase center corrections also to code observables? – A PPP case study 
    Kersten, Tobias; Kröger, Johannes; Breva, Yannick; Schön, Steffen (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2023)
    Consistent and reliable receiver antenna calibration sets are an essential prerequisite for precise geodetic reference frames. In the context of the igs3-reprocessing campaign and the realisation of a new international ...
  • Bestimmung und Validierung von Phasenzentrumskorrektionen für Multi-GNSS-Signale 
    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 ...
  • Codephase center corrections for multi GNSS signals and the impact of misoriented antennas 
    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 ...
  • Consistency and impact of mixed receiver antenna phase centre models in regional GNSS networks 
    Kersten, Tobias; Kröger, Johannes; Breva, Yannick; Schön, Steffen (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2019)
    The Institut für Erdmessung (IfE) at the Leibniz University Hannover calibrates GNSS antennas determined by the well known robot based concept in the field. Our group has recently improved the calibration procedure to ...
  • Deficiencies of Phase Centre Models: Assessing the impact on geodetic parameters 
    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 ...
  • Determination of Phase Center Corrections for Galileo Signals 
    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 ...
  • Estimation and Validation of Codephase Center Correction Using the Empirical Mode Decomposition 
    Breva, Yannick; Kröger, Johannes; Kersten, Tobias; Schön, Steffen (Berlin ; Heidelberg : Springer, 2022)
    In high precision Global Navigation Satellite Systems (GNSS) applications, it is necessary to take phase center corrections (PCC) into account. Beside these corrections for carrier phase measurements, also corrections for ...
  • Estimation and validation of receiver antenna codephase variations for multi GNSS signals 
    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 ...
  • Impact of Different Phase Center Correction Values on Geodetic Parameters: A Standardized Simulation Approach 
    Kröger, Johannes; Kersten, Tobias; Breva, Yannick; Brekenkamp, Mareike; Schön, Steffen (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2022-05-24)
    For highly precise and accurate positioning and navigation solutions with GNSS, it is mandatory to take all error sources – including phase center corrections (PCC) – adequately into account. These corrections are provided ...
  • Impact of different phase center correction values on GNSS-based positioning and frequency transfer 
    Kröger, Johannes; Elmaghraby, Ahmed; Krawinkel, Thomas; Kersten, Tobias; Breva, Yannick; Schön, Steffen (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2023)
    For precise GNSS-based positioning and stable frequency transfer, it is mandatory to take antenna Phase Center Corrections (PCC) into account. They are determined either in an anechoic chamber using simulated signals or ...
  • Konzept und Analyse von Codephasenvatiationen für Multi-GNSS-Signale 
    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 ...
  • Multi-frequency multi-GNSS receiver antenna calibration at IfE: Concept - calibration results - validation 
    Kröger, Johannes; Kersten, Tobias; Breva, Yannick; Schön, Steffen (Amsterdam [u.a.] : Elsevier Science, 2021)
    Multi-frequency and multi-constellation GNSS have the potential to boost the overall performance of GNSS-based positioning, navigation and timing. This has an impact on the realisation of global reference frames, geophysical ...
  • Multi-GNSS Receiver Antenna Calibration 
    Kröger, Johannes; Kersten, Tobias; Breva, Yannick; Schön, Steffen (Copenhagen : Fédération Internationale des Géométres, 2020)
    Global Navigation Satellite Systems (GNSS) are not only widely used for precise positioning, navigation and timing but also for establishing of terrestrial reference frames for geospatial applications, such as land and ...
  • On the Potential of Image Similarity Metrics for Comparing Phase Center Corrections 
    Kröger, Johannes; Kersten, Tobias; Breva, Yannick; Schön, Steffen (Berlin ; Heidelberg : Springer, 2022)
    For highly precise and accurate positioning and navigation with Global Navigation Satellite Systems (GNSS), it is mandatory to take phase center corrections (PCC) into account. These corrections are provided by different ...
  • On the Role of GNSS Receivers for Antenna Patterns and Parameter Estimations 
    Kersten, Tobias; Kröger, Johannes; Breva, Yannick; Schön, Steffen (München : European Geosciences Union, 2021-04-27)
    The precise processing of data derived by several global navigation satellite systems (GNSS) for global and regional networks relies on high-quality and calibrated equipment. Currently, an intensively discussed question ...
  • Phase Center Corrections for new GNSS-Signals 
    Kröger, Johannes; Breva, Yannick; Kersten, Tobias; Schön, Steffen (2019-04-09)
    Phase center corrections (including corrections for phase center offset and phase center variations) are nowadays mandatory for high accuracy GNSS applications. Currently, only L1- and L2 frequencies for GPS and GLONASS ...
  • Validation of Phase Center Corrections for new GNSS-Signals obtained with absolute antenna calibration in the field 
    Breva, Yannick; Kröger, Johannes; Kersten, Tobias; Schön, Steffen (2019-04-09)
    For high accuracy GNSS applications it is necessary to take phase center corrections (PCC) into account. At the moment PCC from chamber calibrations for various signals are available, however GPS L5 as well as Galileo PCC ...

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