Auflistung nach Schlagwort "Signal processing"

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  • Arbitrary Phase Access for Stable Fiber Interferometers 
    Roztocki, Piotr; MacLellan, Benjamin; Islam, Mehedi; Reimer, Christian; Fischer, Bennet; Sciara, Stefania; Helsten, Robin; Jestin, Yoann; Cino, Alfonso; Chu, Sai T.; Little, Brent; Moss, David J.; Kues, Michael; Morandotti, Roberto (Weinheim : Wiley VCH, 2021)
    Well-controlled yet practical systems that give access to interference effects are critical for established and new functionalities in ultrafast signal processing, quantum photonics, optical coherence characterization, ...
  • A compact high-resolution X-ray ion mobility spectrometer 
    Reinecke, Tobias; Kirk, Ansgar T.; Heptner, Andre; Niebuhr, D.; Böttger, S.; Zimmermann, Stefan (College Park, MA : American Institute of Physics (AIP), 2016)
    For the ionization of gaseous samples, most ion mobility spectrometers employ radioactive ionization sources, e.g., containing 63Ni or 3H. Besides legal restrictions, radioactive materials have the disadvantage of a constant ...
  • Damage detection for wind turbine rotor blades using airborne sound 
    Krause, Thomas; Ostermann, Jörn (Hoboken, NJ : Wiley, 2020)
    When operating a wind turbine, damage of rotor blades is a serious problem. Undetected damages are likely to increase overtime, and therefore, the safety risks and economical burdens also increase. A monitoring system, ...
  • Discretization analysis of bifurcation based nonlinear amplifiers 
    Feldkord, Sven; Reit, Marco; Mathis, Wolfgang (Göttingen : Copernicus GmbH, 2017)
    Recently, for modeling biological amplification processes, nonlinear amplifiers based on the supercritical Andronov-Hopf bifurcation have been widely analyzed analytically. For technical realizations, digital systems have ...
  • Efficient ground surface displacement monitoring using Sentinel-1 data: Integrating distributed scatterers (DS) identified using two-sample t-test with persistent scatterers (PS) 
    Shamshiri, Roghayeh; Nahavandchi, Hossein; Motagh, Mahdi; Hooper, Andy (Basel : MDPI AG, 2018)
    Combining persistent scatterers (PS) and distributed scatterers (DS) is important for effective displacement monitoring using time-series of SAR data. However, for large stacks of synthetic aperture radar (SAR) data, the ...
  • Extended Proceedings 4th Summer School on Video Compression and Processing (SVCP) 2018 
    Golestani, Hossein; Meuel, Holger; Voges, Jan; Laude, Thorsten; Erfurt, Johannes; Lim, Wang; Schwarz, Heiko; Marpe, Detlev; Wiegand, Thomas; Genser, Nils; Seiler, Jürgen; Kaup, André; Munderloh, Marco; Dedjouong, Armel; Bahlau, Sascha; Klemt-Albert, Katharina; Ostermann, Jörn; Samayoa, Yasser; Purushothaman, Suraja Koottachiara Nikarth (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2018-07-18)
    Extended Proceedings 4th Summer School on Video Compression and Processing (SVCP) 2018
  • Fast pulsed operation of a small non-radioactive electron source with continuous emission current control 
    Cochems, Philipp; Kirk, Ansgar T.; Bunert, Erik; Runge, M.; Goncalves, P.; Zimmermann, Stefan (College Park, MA : American Institute of Physics (AIP), 2015)
    Non-radioactive electron sources are of great interest in any application requiring the emission of electrons at atmospheric pressure, as they offer better control over emission parameters than radioactive electron sources ...
  • Highly reconfigurable hybrid laser based on an integrated nonlinear waveguide 
    Aadhi, A.; Kovalev, Anton V.; Kues, Michael; Roztocki, Piotr; Reimer, Christian; Zhang, Yanbing; Wang, Tao; Little, Brent E.; Chu, Sai T.; Wang, Zhiming; Moss, David J.; Viktorov, Evgeny A.; Morandotti, Roberto (Washington, DC : Optica, 2019)
    The ability of laser systems to emit different adjustable temporal pulse profiles and patterns is desirable for a broad range of applications. While passive mode-locking techniques have been widely employed for the realization ...
  • Observation of gravitational waves from a binary black hole merger 
    Abbott, B.P.; Abbott, R.; Abbott, T.D.; Abernathy, M.R.; Acernese, F.; et al.; LIGO Scientific Collaboration; Virgo Collaboration (College Park, MD : American Physical Society, 2016)
    On September 14, 2015 at 09:50:45 UTC the two detectors of the Laser Interferometer Gravitational-Wave Observatory simultaneously observed a transient gravitational-wave signal. The signal sweeps upwards in frequency from ...
  • Optical fibre sensors based on multi-mode fibres and MIMO signal processing: An experimental approach 
    Ahrens, Andreas; Sandmann, Andre; Bremer, Kort; Roth, Bernhard; Lochmann, Steffen (Bellingham, WA : S P I E - International Society for Optical Engineering, 2015)
    In this paper multiple-input multiple-output (MIMO) signal processing is investigated for fibre optic sensor applications. A (2 × 2) MIMO implementation is realized by using lower-order and higher-order mode groups of a ...
  • Proceedings of the 4th Summer School on Video Compression and Processing (SVCP) 2018 
    Bakhshi Golestani, Hossein; Bauer, Johannes; Erfurt, Johannes; Fischer, Kristian; Gehlert, Alexander; Genser, Nils; Grosche, Simon; Kuhnke, Felix; Laude, Thorsten; Meuel, Holger; Munderloh, Marco; Spruck, Andreas; Voges, Jan (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2018-07-03)
    Proceedings of the 4th Summer School on Video Compression and Processing (SVCP) 2018
  • Radar distance measurements in circular waveguides involving intermodal dispersion effects 
    Denicke, Eckhard; Armbrecht, Gunnar; Rolfes, Ilona (Cambridge : Cambridge University Press, 2010)
    This contribution deals with guided radar distance measurements in the field of industrial tank level control. The aim is to achieve a submillimeter gauging accuracy even when conducting the measurement within a highly ...
  • Self-adjusting process monitoring system in series production 
    Denkena, Berend; Dahlmann, Dominik; Damm, J. (Amsterdam : Elsevier, 2015)
    Modern monitoring systems in machine tools are able to detect process errors promptly. Still, the application of monitoring systems is restricted by the complexity of parameterization for save monitoring. In most cases, ...
  • Signal processing architectures for automotive high-resolution MIMO radar systems 
    Meinl, Frank (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2020)
    To date, the digital signal processing for an automotive radar sensor has been handled in an efficient way by general purpose signal processors and microcontrollers. However, increasing resolution requirements for automated ...
  • Signal processing strategies for cochlear implants using current steering 
    Nogueira, Waldo; Litvak, Leonid; Edler, Bernd; Ostermann, Jörn; Büchner, Andreas (Heidelberg : Springer Verlag, 2009)
    In contemporary cochlear implant systems, the audio signal is decomposed into different frequency bands, each assigned to one electrode. Thus, pitch perception is limited by the number of physical electrodes implanted into ...