Auflistung nach Schlagwort "Underwater acoustics"

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  • Integrity and collaboration in dynamic sensor networks 
    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 ...
  • Tracking Length and Differential-Wavefront-Sensing Signals from Quadrant Photodiodes in Heterodyne Interferometers with Digital Phase-Locked-Loop Readout 
    Heinzel, Gerhard; Álvarez, Miguel Dovale; Pizzella, Alvise; Brause, Nils; Delgado, Juan José Esteban (College Park, MD : American Physical Society, 2020)
    We propose a method to track signals from quadrant photodiodes (QPDs) in heterodyne laser interferometers that employ digital phase-locked loops for phase readout. Instead of separately tracking the four segments from the ...