• 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 ...
• Bestimmung und Validierung von Phasenzentrumskorrektionen für Multi-GNSS-Signale 

  Kröger, Johannes; Breva, Yannick; Kersten, Tobias; 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 ...
• 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 ...
• Assessment of a standard ULS design procedure for offshore wind turbine sub-structures 

  Hübler, Clemens; Gebhardt, Cristian G.; Rolfes, Raimund (Bristol : Institute of Physics Publishing, 2018)

  Sub-structures of offshore wind turbines are designed according to several design load cases (DLCs) that cover various fatigue (FLS) and ultimate limit states (ULS). The required DLCs are given in the current standards, ...
• 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 ...
• Multiresolution wavelet analysis applied to GRACE range-rate residuals 

  Behzadpour, Saniya; Mayer-Gürr, Torsten; Flury, Jakob; Klinger, Beate; Goswami, Sujata (Göttingen : Copernicus, 2019-08-15)

  For further improvements of gravity field mod- els based on Gravity Recovery and Climate Experiment (GRACE) observations, it is necessary to identify the error sources within the recovery process. Observation residuals ...
• 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 ...
• Influence of convex and concave curvatures in a coastal dike line on wave run-up 

  Subramaniam, Suba Periyal; Scheres, Babette; Schilling, Malte; Liebisch, Sven; Kerpen, Nils B.; Schlurmann, Torsten; Altomare, Corrado; Schüttrumpf, Holger (Basel : MDPI AG, 2019)

  Due to climatic change and the increased usage of coastal areas, there is an increasing risk of dike failures along the coasts worldwide. Wave run-up plays a key role in the planning and design of a coastal structure. ...
• Global-local progressive failure analysis of composite panels including skin-stringer debonding and intralaminar damage 

  Akterskaia, Margarita (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2019)

  An increasing application of fibre-reinforced composites in aircraft and aerospace engineering contributed to the rise of development of highly effective numerical tools. On the one hand, computational simulations help to ...
• UHPC sandwich structures with composite coating under compressive load 

  Markowski, Jan; Lohaus, Ludger (Prag : Czech Technical University in Prague - Central Library, 2016)

  Ultra-high-performance concrete (UHPC) sandwich structures with composite coating serve as multipurpose load-bearing elements. The UHPC’s extraordinary compressive strength is used in a multi-material construction element, ...
• Statistical approaches for assessment of climate change impacts on low flows: temporal aspects 

  Fangmann, Anne; Haberlandt, Uwe (Göttingen : Copernicus GmbH, 2019)

  The characteristics of low flow periods, especially regarding their low temporal dynamics, suggest that estimation of metrics related to these periods may be carried out using simplified statistical model approaches that ...
• Spatial dynamics of tuned and mistuned bladed disks with cylindrical and wedge-shaped friction dampers 

  Panning, Lars; Sextro, Walter; Popp, Karl (London : Hindawi Limited, 2003)

  One of the main tasks in the design of turbomachines like turbines, compressors, and fans is to increase the reliability and efficiency of the arrangement. Failures due to blade cracks are still a problem and have to be ...
• Octree-based SIMD strategy for ICP registration and alignment of 3d point clouds 

  Eggert, D.; Dalyot, S. (London : International Society for Photogrammetry and Remote Sensing, 2012)

  Matching and fusion of 3D point clouds, such as close range laser scans, is important for creating an integrated 3D model data infrastructure. The Iterative Closest Point algorithm for alignment of point clouds is one of ...
• Prediction of individual's movement based on interesting places 

  Feuerhake, Udo (Göttingen : Copernicus GmbH, 2012)

  In general, the development of prediction methods is a quite challenging field. However, as difficult the development is, as useful those methods can be in a large variety of use cases. Whether the weather of tomorrow or ...
• Mapping similarities in temporal parking occupancy behavior based on city-wide parking meter data 

  Bock, Fabian; Xia, Karen; Sester, Monika (Göttingen : Copernicus GmbH, 2018)

  The search for a parking space is a severe and stressful problem for drivers in many cities. The provision of maps with parking space occupancy information assists drivers in avoiding the most crowded roads at certain ...
• Experimental Study of Silty Clay Plane Strain Tri-axial Test under RTC Path and Modified Cam-clay Model 

  Cheng, Tao; Zhang, Yi; Yan, Keqin (s.l. : C EJ Publishing Group, 2018)

  The character of geomaterials is affected by stress path remarkably. Under different stress paths, the stress-strain characteristics of geomaterials are difference. For the unloading path in existing engineering situation, ...
• Geometric calibration of full spherical panoramic ricoh-theta camera 

  Aghayari, S.; Saadatseresht, Mohammad; Omidalizarandi, Mohammad; Neumann, Ingo (Göttingen : Copernicus GmbH, 2017)

  A novel calibration process of RICOH-THETA, full-view fisheye camera, is proposed which has numerous applications as a low cost sensor in different disciplines such as photogrammetry, robotic and machine vision and so on. ...
• Context models for crf-based classification of multitemporal remote sensing data 

  Hoberg, Thorsten; Rottensteiner, Franz; Heipke, Christian (Göttingen : Copernicus GmbH, 2012)

  The increasing availability of multitemporal satellite remote sensing data offers new potential for land cover analysis. By combining data acquired at different epochs it is possible both to improve the classification ...
• An efficient method to detect mutual overlap of a large set of unordered images for structure-from-motion 

  Wang, X.; Zhan, Z.Q.; Heipke, Christian (Göttingen : Copernicus GmbH, 2017)

  Recently, low-cost 3D reconstruction based on images has become a popular focus of photogrammetry and computer vision research. Methods which can handle an arbitrary geometric setup of a large number of unordered and ...
• Axially loaded grouted connections in offshore conditions using ordinary portland cement 

  Henneberg, Joshua; Schaumann, Peter; Raba, Alexander (Valencia : Universitat Politècnica València, 2018)

  A grouted connection (GC) is a hybrid connection which joins two telescoped steel tubes by filling the annulus between the steel tubes with grout. GCs are frequently used to enable a force fitted connection between piles ...

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