Browse Fakultät für Bauingenieurwesen und Geodäsie by License

Browse Fakultät für Bauingenieurwesen und Geodäsie by License

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  • Analytical linearization of aerodynamic loads in the UVLM for nonlinear aeroelastic applications 
    Hente, Christian (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2024)
    This article presents the analytical linearization of aerodynamic loads (computed with the unsteady vortex-lattice method), which is formulated as tangent matrices with respect to the kinematic states of the aerodynamic ...
  • Bestimmung der Erdorientierung mit Lunar Laser Ranging 
    Biskupek, Liliane (München : Verlag der Bayerischen Akademie der Wissenschaften, 2015)
    Entfernungsmessungen zum Mond mit Laserpulsen, englisch als Lunar Laser Ranging (LLR) bezeichnet, werden seit 45 Jahren durchgeführt. Die Daten stellen die längste Reihe räumlicher geodätischer Beobachtungen dar. Nachdem ...
  • 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 ...
  • Continuous Navigation of an Inland Vessel with a Synthetic GNSS Antenna 
    Kersten, Tobias; Ren, Le; Schön, Steffen (Bonn : DGON, 2018-11-15)
    This paper describes a concept to obtain a continuous navigation and position solution of inland vessels based on a multi-GNSS antenna system. Also known as, “Virtual Receiver” we utilize this approach as an alternative ...
  • Continuous Navigation of an Inland Vessel with a Synthetic GNSS Antenna 
    Kersten, Tobias; Ren, Le; Schön, Steffen (Bonn : DGON, 2018)
    This paper describes a concept to obtain a continuous navigation and position solution of inland vessels based on a multi-GNSS antenna system. Also known as, “Virtual Receiver” we utilize this approach as an alternative ...
  • Damage localization in data-driven vibration-based structural health monitoring using linear quadratic estimation theory 
    Wernitz, Stefan (Hannover : Institut für Statik und Dynamik, Gottfried Wilhelm Leibniz Universität, 2022)
    Vibration-based Structural Health Monitoring (SHM) is classically approached from two different directions; both involve the acquisition and processing of vibration signals. The first and most popular strategy, which is ...
  • 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 ...
  • Ein szenariofreies Verfahren zur Ermittlung von Hochwasserscheiteländerungen für Klimawandeluntersuchungen 
    Beylich, Marcus (Hannover : Institutionelles Repositorium der Leibniz Unversität Hannover, 2022)
    Der szenariofrei, szenarioneutral oder auch Scenario-Free genannte Ansatz stellt gegenüber dem deutlich verbreiteteren szenariogestützten, szenariogeführten oder auch als Scenario-Led bezeichneten Ansatz eine flexiblere ...
  • An ensemble neural network model for real-time prediction of urban floods 
    Berkhahn, Simon; Fuchs, Lothar; Neuweiler, Insa (Amsterdam : Elsevier, 2019-05)
    The real-time forecasting of urban flooding is a challenging task for the following two reasons: (1) urban flooding is often characterized by short lead times, (2) the uncertainty in precipitation forecasting is usually ...
  • 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 antenna phase center models: From observation to parameter domain 
    Kersten, Tobias; Hiemer, Leonard; Schön, Steffen (Prague : IUGG, 2015-06-25)
    For precise GNSS applications like positioning, navigation and timing (PNT) as well as for troposphere studies, stable and accurate calibrations of the carrier phase center variations (PCV) for individual antennas have to ...
  • 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 Adequate Comparison of Antenna Phase Center Variations 
    Schön, Steffen; Kersten, Tobias (Washington D.C. : American Geophysical Union, 2013)
    One important part for ensuring the high quality of the International GNSS Service's (IGS) products is the collection and publication of receiver - and satellite antenna phase center variations (PCV). The PCV are crucial ...
  • Simulation studies to evaluate the impact of receiver clock modelling in flight navigation 
    Jain, Ankit; Schön, Steffen (Stuttgart : Frontiers of Geodetic Science, 2019-09-17)
    GNSS based positioning and navigation always require perfect synchronization between the receiver and satellites clock. Further, due to the limited frequency stability of the GNSS receiver’s internal oscillator, an additional ...
  • A stochastic failure investigation of composites under combined compression-shear loads 
    Safdar, Nabeel (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2022)
    Because of their excellent specific strength and stiffness properties, fiber-reinforced polymers (FRPs) have become increasingly material of choice for advanced industries such as aerospace and wind turbines. One of the ...
  • Support Vektor Regression für Anwendungen im Bereich der Elasto-Plastizität 
    Funk, Steffen (Hannover : Institut für Baumechanik und Numerische Mechanik, 2022)
    In der vorliegenden Arbeit werden Untersuchungen zur Modellreduktion mechanischer Systeme mit elasto-plastischem Materialverhalten durchgeführt. Das untersuchte Verfahren zur Modellreduktion ist in dieser Arbeit die Support ...
  • A Virtual Receiver Concept for Continuous GNSS based Navigation of Inland Vessels 
    Kersten, Tobias; Ren, Le; Schön, Steffen (Noordwijk, The Netherlands : ESA/ESTEC, 2018-12-06)
    Efficient and economic guidance of inland vessels relies on a continuous, available, reliable and precise GNSS navigation solution. Hence, below other side effects, this is especially critical when passing beneath bridges ...
  • A Virtual Receiver Concept for Continuous GNSS based Navigation of Inland Vessels 
    Kersten, Tobias; Ren, Le; Schön, Steffen (Noordwijk, The Netherlands : Esa ESTEC, 2018)
    Efficient and economic guidance of inland vessels relies on a continuous, available, reliable and precise GNSS navigation solution. Hence, below other side effects, this is especially critical when passing beneath bridges ...
  • Zur Bewertung von High Sensitivity GNSS-Empfängern bei der Kombination in Multi-Sensor-Systemen 
    Kersten, Tobias; Paffenholz, Jens-André (Bonn : DGON, 2018-11-16)
    Die instantan mit stationären, terrestrischen Laserscannern (TLS) aufgenommen dreidimensionalen Punktwolken beziehen sich generell auf ein lokales Horizontsystem, dessen Lage und Orientierung gegenüber einem übergeordnetem ...

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