Recent Submissions

  • Towards Mid-IR Waveguide Lasers: Transition Metal Doped ZnS Thin Films 

    Karhu, Eric Andrew; Tolstik, Nikolai; Sorokin, Evgeni; Polyakov, Stanislav; Zamiri, Reza; Furtula, Vedran; Østerberg, Ulf Lennart; Sorokina, Irina T; Gibson, Ursula (Chapter; Peer reviewed, 2016)
    Thin films of Cr and Fe-doped ZnS suitable for waveguide mid-IR applications, with well-isolated TM2+ peaks, and Cr2+ absorption and fluorescence comparable to bulk crystals were investigated. Raman data indicate that the ...
  • Subjective Intelligibility of Deep Neural Network-Based Speech Enhancement 

    Gelderblom, Femke B.; Tronstad, Tron Vedul; Viggen, Erlend Magnus (Journal article; Peer reviewed, 2017)
    Recent literature indicates increasing interest in deep neural networks for use in speech enhancement systems. Currently, these systems are mostly evaluated through objective measures of speech quality and/or intelligibility. ...
  • Design and analysis of an H.265 entropy encoder 

    Paulsen, Lars Erik Songe (Master thesis, 2017)
    The Context-Adaptive Binary Arithmetic Coding(CABAC) used in High Efficiency Video Coding(HEVC/H.265) is a near optimal entropy coding method. As a consequence of this coding efficiency, CABAC implementation is a complicated ...
  • Interstitial oxygen as a source of p-type conductivity in hexagonal manganites 

    Skjærvø, Sandra Helen; Tjønneland Wefring, Espen; Nesdal, Silje K.; Gaukås, Nikolai Helth; Olsen, Gerhard Henning; Glaum, Julia; Tybell, Per Thomas Martin; Selbach, Sverre Magnus (Journal article; Peer reviewed, 2016)
    Hexagonal manganites, h-RMnO3 (R=Sc, Y, Ho–Lu), have been intensively studied for their multiferroic properties, magnetoelectric coupling, topological defects and electrically conducting domain walls. Although point defects ...
  • Ultrafast Optical and Magneto-Optical Kerr Effect Spectroscopy on Condensed Matter 

    Lysne, Erik Nikolai (Master thesis, 2017)
    In this masters project, an ultrafast optical spectroscopy system has been constructed and tested. The system was built as an extension to an existing spectroscopy system, centered around a mode-locked Ti:Sapphire femtosecond ...
  • JPEG2000 Image Compression In Hardware 

    Sørlie, Ole Kristian Hamre (Master thesis, 2017)
    The NTNU Test Satellite (NUTS) is a double CubeSat satellite developed by students at the Norwegian University of Science and Technology (NTNU) with the intention of eventually launching it into low earth orbit. The goal ...
  • Spectral impairment in HRTF based binaural reproduction systems 

    Skeide, Magnus Hauge (Master thesis, 2017)
    Higher Order Ambisonics is a method for capturing and reproducing sound fields. With Ambisonics` advantageous features and possibilities for binaural reproduction, the method has been established as one of the best ways ...
  • Talegjenkjenning av barnestemmer 

    Thorsrud, Ole Petter (Master thesis, 2017)
    Today s speech recognition systems are based on adult speech corpora. In speech recognition of children s speech, the recognition system will not perform equally good as in the recognition of adult speech. This is due to ...
  • Comparison of impulse noise measurements and calculations by noise prediction methods: ISO 9613-2, NMPB-2008, Nord2000 and Harmonoise 

    Gonzalez, Mary Paula Cruz (Master thesis, 2017)
    This master s thesis presents a comparison between impulse noise measurements and calculations from four well-known propagation models; ISO 9613-2, NMPB-2008, Harmonoise and Nord2000. The calculated values are compared to ...
  • Implementation of Empirical Mode Decomposition on an FPGA using Fixed Point Arithmetic 

    Andersen, Lars Haugseng (Master thesis, 2017)
    This report will test how well the empirical mode decomposition (EMD) algorithm performs on a field-programmable gate array (FPGA), using solely fixed point arithmetic. The implementation is designed to receive a data set ...
  • A Review of the Current Challenges Associated with the Development of an Artificial Pancreas by a Double Subcutaneous Approach 

    Christiansen, Sverre; Fougner, Anders Lyngvi; Stavdahl, Øyvind; Kölle, Konstanze; Ellingsen, Reinold; Carlsen, Sven Magnus (Journal article; Peer reviewed, 2017)
    Introduction Patients with diabetes type 1 (DM1) struggle daily to achieve good glucose control. The last decade has seen a rush of research groups working towards an artificial pancreas (AP) through the application of a ...
  • Measurability of intersections of measurable multifunctions 

    Taraldsen, Gunnar (Journal article, 1996)
    We prove universal compact-measurability of the intersection of a compact-measurable Souslin family of closed-valued multifunctions. This generalizes previous result on intersections of measurable multifunctions. We introduce ...
  • Critical thickness of MBE-grown Ga1-xInxSb (x < 0.2) on GaSb 

    Nilsen, Tron Arne; Breivik, Magnus; Selvig, Espen; Fimland, Bjørn-Ove (Journal article; Peer reviewed, 2009)
    Several Ga1−xInxSb layers, capped with 1 μm of GaSb, were grown on GaSb(0 0 1) substrates by molecular beam epitaxy in a Varian Gen II Modular system using either the conventional sample growth position with substrate ...
  • Plasma-assisted oxide removal from p-type GaSb for low resistivity ohmic contacts 

    Tran, Thanh-Nam; Patra, Saroj Kumar; Breivik, Magnus; Fimland, Bjørn-Ove (Journal article, 2015)
    The effect of several plasma-assisted oxide removal techniques prior to metallization of p-type GaSb was investigated. Compared to conventional chemical methods, the plasma-assisted oxide removal resulted in significant ...
  • Aluminum-based contacts for use in GaSb-based diode lasers 

    Tran, Thanh-Nam; Patra, Saroj Kumar; Breivik, Magnus; Fimland, Bjørn-Ove (Journal article; Peer reviewed, 2016)
    Aluminum-based contacts could be a good alternative to conventional gold-based contacts for a number of GaSb-based devices. In this study, the use of some Al-based contacts in GaSb-based diode lasers was investigated via ...
  • Atomap - Automated Analysis of Atomic Resolution STEM Images 

    Nord, Magnus Kristofer; Vullum, Per Erik; MacLaren, I; Tybell, Per Thomas Martin; Holmestad, Randi (Journal article, 2017)
    Atomic resolution scanning transmission electron microscopy (STEM) data contain a large amount of information about the structure of a crystalline material. Often, this information is hard to extract, due to the large ...
  • Minimum Variance Signal Selection for Aorta Radius Estimation Using Radar 

    Solberg, Lars Erik; Hamran, Svein-Erik; Berger, Tor; Balasingham, Ilangko (Journal article; Peer reviewed, 2010)
    This paper studies the optimum signal choice for the estimation of the aortic blood pressure via aorta radius, using a monostatic radar configuration. The method involves developing the Cramer-Rao lower bound (CRLB) for a ...
  • Comparing measurements and simulations for acoustics in open-plan office spaces 

    Olufsen, Hogne Opsahl (Master thesis, 2017)
    This report is the result of a master thesis at the Norwegian University of Science and Technology (NTNU). The ISO 3382-3 standard describes the measurement procedure of room acoustical parameters in an open-plan office. ...
  • Ground station considerations for the AMOS satellite programme 

    Karlsen, Øyvind (Master thesis, 2017)
    NTNU centre for Autonomous Maritime Operations and Systems (AMOS) is expanding with a satellite programme (AMOS-Sat). These satellites will operate with frequencies ranging from VHF to low SHF. To support these future ...
  • DVL Velocity Aiding in the HUGIN 1000 Integrated Inertial Navigation System 

    Jalving, Bjørn; Gade, Kenneth; Svartveit, Kristian; Willumsen, Are Baardsgaard; Sørhagen, Robert (Journal article; Peer reviewed, 2004)
    The RDI WHN-600 Doppler Velocity Log (DVL) is a key navigation sensor for the HUG1N 1000 Autonomous Underwater Vehicle (AUV). HUGIN 1000 is designed for autonomous submerged operation for long periods of time. This is ...

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