Now showing items 1545-1564 of 1575

    • Wake Word Detection Using Recurrent Neural Networks 

      Hunshamar, Bjørnar (Master thesis, 2018)
      Wake word detection is the process of continuously listening for some specific keyword or phrase which, when uttered, wakes up a system and initiates communication between the system and a user. This is a necessity for ...
    • Waveform Design for Software Defined Multifunctional RF Systems 

      Åsheim, Anders (Master thesis, 2017)
      In this thesis, a study of multifunctional radio frequency (RF) systems implementing radar, communication, and electronic warfare (EW) is presented. Development of low cost and highly adaptable software defined radios ...
    • Waveguide asymmetric long-period grating couplers as refractive index sensors 

      Høvik, Jens; Yadav, Mukesh; Noh, Jong Wook; Aksnes, Astrid (Peer reviewed; Journal article, 2020)
      A highly sensitive integrated photonic transducer is designed by utilizing asymmetric long-period gratings on a silicon waveguide. These gratings are formed by periodic perturbation of the waveguide width, leading to ...
    • Wavelet based feature extraction and visualization in hyperspectral tissue characterization 

      Denstedt, Martin Anders Fredrik; Bjorgan, Asgeir; Milanic, Matija; Randeberg, Lise Lyngsnes (Journal article; Peer reviewed, 2014)
      Hyperspectral images of tissue contain extensive and complex information relevant for clinical applications. In this work, wavelet decomposition is explored for feature extraction from such data. Wavelet methods are simple ...
    • Wavelet based Video coding with optical flow for motion compensation 

      Auli, Øystein Ødegaard (Master thesis, 2011)
      In broadcasting environments intra-only video coding with JPEG 2000 has shownto provide many desired features along with high picture quality. However, thereis no exploitation of temporal redundancy, which can reduce the ...
    • Web-based Spice for innovative learning methods 

      Gylder, Tor Braastad (Master thesis, 2019)
      Etter hvert som cloud computing øker sin tilstedeværelse, integreres flere programvarer som webapplikasjoner. IDE8 gir et skybasert utviklingsmiljø for elektronikk. Inkludering av en nettbasert Spice simulator i dette ...
    • Why intraperitoneal glucose sensing is sometimes surprisingly rapid and sometimes slow: A hypothesis 

      Åm, Marte Kierulf; Fougner, Anders Lyngvi; Ellingsen, Reinold; Hjelme, Dag Roar; Bösch, Patrick Christian; Stavdahl, Øyvind; Carlsen, Sven Magnus; Christiansen, Sverre (Journal article; Peer reviewed, 2019)
      The artificial pancreas requires fast and reliable glucose measurements. The peritoneal space has shown promising results, and in one of our studies we detected glucose changes in the peritoneal space already at the same ...
    • Wide frequency range measurements of absolute phase and amplitude of vibrations in micro- and nanostructures by optical interferometry 

      Martinussen, Hanne; Aksnes, Astrid; Engan, Helge Emil (Journal article; Peer reviewed, 2007)
      A heterodyne interferometer has been built in order to characterize vibrations on micro- and nanostructures. The interferometer offers the possibility of both absolute phase and high resolution absolute amplitude vibrational ...
    • Wideband Efficiency in a Class-F Power Amplifier 

      Stenstrøm, Andreas Berg (Master thesis, 2014)
      In this thesis, the design of a class-F/inverse class-F amplifier with high efficiency in a 1.2 GHz bandwidth and center frequency at 2.4 GHz is presented. The harmonic tuning is done by using a CAD load pull test bench ...
    • Wideband Harmonically Tuned Power Amplifier Design Based on GaN Technology for use in Envelope Tracking 

      Samuelsen, Richard (Master thesis, 2015)
      In this thesis, the design, simulation and measurements of a harmonically tuned 10 W wideband high efficiency power amplifier employing envelope tracking is presented. The simulations and design were carried out with the ...
    • Wideband, Robust Low Noise Amplifier 

      Pedersen, Magnus Nøkleby (Master thesis, 2018)
      Low noise amplifiers are important parts of receiver units in radio systems that enables communication between military vehicles. The use of such an amplifier in military and maritime equipment poses challenges to the ...
    • Wilkinson Power Divider: A Miniaturized MMIC Lumped Component Equivalent 

      Torgersen, Tron (Master thesis, 2009)
      This report will describe the simulation of a Wilkinson Power Divider, realised using lumped components to minimize its size. Every step in the process, from calculating the lumped component values to the final momentum ...
    • Wireless battery maintenance unit 

      Eriksen, Kevin (Master thesis, 2007)
      The problem presented in this thesis has been to design a charge and monitoring system for high-voltage high-capacity lithium batteries to be embedded in WesternGecos marine seismic configurations. The design of this system ...
    • Wireless communication system for land seismic operations: A feasibility study 

      Ramos Gana, Ander (Master thesis, 2008)
      Wireless data networks have seen rapid growth and deployment in the recent years, replacing traditional wired data networks. WesternGeco is currently using a traditional wired data network in the land seismic operations ...
    • Wireless Light Control 

      Stephansen, Anders Ellingsen (Master thesis, 2010)
      This master thesis deal with the development of a wireless lighting application for use with LED lighting. Recent regulations on energy efficiency in light bulbs to cope with climate and energy challenges, have inspired ...
    • Wireless Link for Smartphone Based Hearing Aids 

      Jerndahl, Kristian Rygh (Master thesis, 2015)
      Since their introduction, digital hearing aids have seen continuous improvements in processing speed, as well as the addition of new and more advanced signal processing tools. In order to further develop the capabilities ...
    • Wireless MEMS Accelerometer with Nanoampere Current Consumption for the Internet of Things 

      Gjertsen, Jonathan Reichelt (Master thesis, 2018)
      Sensors are a key part of the Internet of Things (IoT). Accelerometers are particularly versatile, since knowledge about the motion of an object can be used for a large number of applications. Nearly all commercially ...
    • Wireless Power and Communication: Implementation of communication in a wireless power transferring system 

      Rygh, Thomas (Master thesis, 2011)
      In this report two types of inductive antennas has been characterized, one designed for both power and communication and one designed for communication only. The effects of varying wire size, number of windings and distance ...
    • Wireless Sensor Networks for Detection and Localization of Subsea Oil Leakages 

      Tabella, Gianluca; Paltrinieri, Nicola; Cozzani, Valerio; Salvo Rossi, Pierluigi (Journal article; Peer reviewed, 2021)
      This work studies the impact of Wireless Sensor Networks (WSNs) for oil spill detection and localization in Subsea Production Systems. The case study is the Goliat FPSO, with a realistic assumption about the presence of a ...
    • Wireless Video Capsule Endoscopy - Adaptive Coding for Parameters Update and Low Complexity Region-of-Interest Encoding 

      Bø, Endre Våland (Master thesis, 2016)
      Wireless capsule endoscopy (WCE) is a non-invasive diagnostic method to investigate diseases in the human gastrointestinal (GI) tract. Specifically, the WCE allows for physicians to visually inspect the GI tract of the ...