Now showing items 247-266 of 1575

    • Checking of Nanoscale Transistor Models 

      Hernes, Marie Helene (Master thesis, 2016)
      A device compact model is a mathematical description of a device, e.g. a transistor, in an integrated circuit. Compact models are designed to be a part of a larger simulation, and work together with a circuit model. For ...
    • Chlorophyll fluorescence emission spectroscopy of oxygenic organisms at 77 K 

      Lamb, Jacob Joseph; Røkke, Gunvor; Hohmann-Marriott, Martin Frank (Journal article; Peer reviewed, 2018)
      Photosynthetic fluorescence emission spectra measurement at the temperature of 77 K (–196°C) is an often-used technique in photosynthesis research. At low temperature, biochemical and physiological processes that modulate ...
    • CityMob: Prototype Development of a Commercial City Information Portal for Mobile Phones 

      Isene, Jan Sindre; Johannessen, Petter Hwan Eide (Master thesis, 2007)
      The extensive list of cultural offerings in big European cities has resulted in a variety of city guides in magazines and on the Internet. However, users often require information when they are on the run. A city guide ...
    • Classification of noise relative to speech 

      Vadla, Marte Haavik (Master thesis, 2018)
      The implementation of the source localization in MATLAB showed satisfactory results, where the system was able to determine from which directions sound sources were coming from. However, the system only found the strongest ...
    • Clock Tree Power Analysis 

      Austbø, Knut (Master thesis, 2016)
      The buffered clock tree structure is commonly used to distribute the clock signal to the memory elements in digital circuits. Since the clock signal is used as a temporal reference, it has to be distributed to the registers ...
    • Cloud Radio Based Localization in Massive MIMO 

      Rokke, Eirik (Master thesis, 2019)
      Dette prosjektet ser på bruken av cloud radio basert lokalisering i massiv MIMO. Systemet undersøker et simpelt scenario, med planbølger, narrowband, ingen flerveisinterferens og to romlig separerte antenne array som kan ...
    • Cluster Based MIMO Radio Channel Modeling 

      Li, Xin (Doctoral theses at NTNU;2020:379, Doctoral thesis, 2020)
      Modeling of wireless channels is perhaps the most complex task in implementing a wireless communication system because wireless channels change over time, vary with frequency and space. That is, the transmit signal with ...
    • Clustered Compressive Sensing: Application on Medical Imaging 

      Tesfamicael, Solomon Abedom; Barzideh, Faraz (Journal article; Peer reviewed, 2015)
      his paper provides clustered compressive sensing (CCS) based image processing using Bayesian framework applied to medical images. Some images, for example like magnetic resonance images (MRI) are usually very weak due to ...
    • CMOS Class D Audio Amplifier Implementations for Microcontroller Circuits 

      Braathen, Åsmund (Master thesis, 2007)
      A class D amplifier implementation on an AVR 8-bits microcontroller is presented in this thesis. The solution uses a pulse modulation scheme known as uniform sampled pulse width modulation (UPWM). Eight times interpolation ...
    • CNOSSOS-EU compatible emission models for Oslo tramways and metros 

      Meland, Øystein (Master thesis, 2018)
      This thesis calculates the noise emission of an metro train and tram, according to a common noise assessment method developed in the European union. To validate the choice of model parameters an acoustical camera is used ...
    • Cochlear Features for Acoustic Segmentation 

      Hamar, Jarle Bauck (Master thesis, 2009)
      This work explores an alternative set of features to the frequently used melfrequency coefficients (MFCCs). The cochlea features simulate the nerve fibre signal sent from the ear to the brain. In this study the usage of ...
    • Coded Excitation in Color Flow Imaging 

      Holje, Jostein (Master thesis, 2007)
    • Coexisting spin-flop coupling and exchange bias in LaFeO3/La0.7Sr0.3MnO3 heterostructures 

      Olsen, Fredrik Kjemperud; Hallsteinsen, Ingrid; Arenholtz, Elke; Tybell, Per Thomas Martin; Folven, Erik (Journal article; Peer reviewed, 2019)
      Exchange bias occurs in field-cooled antiferromagnet/ferromagnet systems and can most often be explained in terms of uncompensated magnetic moments at the interface that are pinned in their orientation during field cooling. ...
    • Cognitive Radio and TV White Space Communications: TV White Space Geo-location Database System 

      Zurutuza, Naroa (Master thesis, 2011)
      The aim of this thesis is to research in the use of emerging TV white space communications, implementing a geo-location database system. For that, some research and theoretical studies related to cognitive radio and TV ...
    • Cognitive Radio Network System Demonstrator 

      Trećakov, Nemanja (Master thesis, 2011)
      The frequency spectrum is presently poorly utilized and lies idle for the most of the time. In order to utilize the spectrum more efficiently, Dynamic Spectrum Access (DSA) should be used. A common approach to this thought ...
    • Cognitive Radio Network System Demonstrator 

      Trećakov, Nemanja (Master thesis, 2011)
      The frequency spectrum is presently poorly utilized and lies idle for the most of the time. In order to utilize the spectrum more efficiently, Dynamic Spectrum Access (DSA) should be used. A common approach to this thought ...
    • Cognitive Radio: Interference Management and Resource Allocation 

      Ellingsæter, Brage Høyland (Master thesis, 2010)
      In this thesis the performance of different cognitive systems are analyzed in different environments and scenarios. The main scenarios are: one cognitive and one primary user, multiple cognitive users and channels and ...
    • Coherent query scheme for wireless backscatter communication systems with single tag 

      Hasanvand, Aminolah; Khaleghi, Ali; Balasingham, Ilangko (Journal article; Peer reviewed, 2018)
      An un-coded multi-transmitter query scheme is introduced for wireless backscatter communication systems in which M transmitters and N receivers are used for single-tag connectivity (M × 1 × N). The main idea is to harden ...
    • Combined 3D model acquisition and autofocus tracking system for hyperspectral line-scanning devices 

      Bjorgan, Asgeir; Lukasz, Paluchowski; Seljebotn, Svein Tore Koksrud; Randeberg, Lise Lyngsnes (Journal article; Peer reviewed, 2019)
      Obtaining a sharp and focused image is essential to fully utilize the advantages of hyperspectral imaging. For line scanning hyperspectral devices, focusing is a challenge in applications where the height and/or position ...
    • Combined temperature and RI sensor for exploring the phase transitions of ethanol solutions 

      Wahl, Markus Solberg; Wilhelmsen, Øivind; Hjelme, Dag Roar (Chapter, 2018)
      A fiber optic interferometer based on core diameter mismatch is used in reflection mode to study the behavior of ethanol solutions with regards to concentration dependent thermal properties and phase transitions. A method ...