Now showing items 976-995 of 1522

    • Objective evaluation of hearing loss simulators 

      Askheim, Vilde Christine (Master thesis, 2014)
      SINTEF s department in Trondheim, Norway, has developed a hearing loss simulator. Thepurpose of the simulator is to reconstruct hearing impaired s perception of sound. Thusfar, the simulator has only been judged subjectively, ...
    • Objective Image Quality Metrics for Ultrasound Imaging 

      Simpson, Cecilie Øinæs (Master thesis, 2009)
      Objective evaluation of the image quality on ultrasound images is a comprehensive task due to the relatively low image quality compared to other imaging techniques. It is desirable to objectively determine the quality of ...
    • Objekt identifisering 

      Mølster, Lars; Olsen, Torje Øivand (Bachelor thesis, 2008)
      ETC har et system for administrasjon av bilparker som bl.a. benytter seg av elektronisk styrte nøkkelskap. Disse skapene har ingen måte å kontrollere om det er en nøkkel tilstede i et gitt nøkkelrom. Vi skal undersøke ...
    • Objektiv og sansningsbasert vurdering av vindturbinstøy 

      Bang, Aurora Elinsdatter (Master thesis, 2020)
      De fleste land benytter i dag regelverk for regulering av støyplage fra vindturbiner som er basert på lydtrykknivå, mens noen land bruker differensielle støygrenser som lydfremvekst. I denne sammenhengen har det blitt ...
    • Octahedral coupling in (111)- and (001)-oriented La0.7Sr0.3MnO3/SrTiO3 heterostructures 

      Moreau, Magnus; Selbach, Sverre Magnus; Tybell, Per Thomas Martin (Journal article; Peer reviewed, 2018)
      Rotations and distortions of oxygen octahedra in perovskites play a key role in determining their functional properties. Here, we investigate how octahedral rotations can couple from one material to another in La2/3Sr1/3 ...
    • Om implementering av frekvenshopping i OpenBTS. 

      Bremseth, Morten (Master thesis, 2011)
      Denne Rapporten gir en forklaring på hva programvaredefinert radio er generelt. Den omtaler en konkret realisering ved hjelp av programvaren GNU Radio og den universale radioenheten USRP (Universal Software Radio Peripheral). ...
    • On Bit Error Probability and Power Optimization in Multihop Millimeter Wave Relay Systems 

      Chelli, Ali; Kansanen, Kimmo; Alouini, Mohamed-Slim; Balasingham, Ilangko (Journal article; Peer reviewed, 2018)
      5G networks are expected to provide gigabit data rate to users via the millimeter-wave (mmWave) communication technology. One of the major problems faced by mmWaves is that they cannot penetrate buildings. In this paper, ...
    • On Improving Recovery Performance in Multiple Measurement Vector Having Dependency 

      Fouladi, Seyyed Hamed; Balasingham, Ilangko (Journal article; Peer reviewed, 2019)
      The multiple measurement vector (MMV) problem is applicable in a wide range of applications such as photoplethysmography (PPG), remote PPG measurement, heart rate estimation, and directional arrival estimation of multiple ...
    • On Localization and Tracking for Wireless Capsule Endoscopy 

      Moussakhani, Babak (Doctoral Theses at NTNU, 1503-8181; 2013:156, Doctoral thesis, 2013)
      Capsule endoscopy is a new and painless technique which has revolutionizedthe gastrointestinal imaging. However, one of the main shortcomingsof the new method is its inability to tag a precise location to each image. Inthis ...
    • On low frequencies emitted by air guns at very shallow depths - An experimental study 

      Wehner, Daniel; Landrø, Martin; Amundsen, Lasse (Journal article; Peer reviewed, 2019)
      In marine seismic acquisition, the enhancement of frequency amplitudes below 5 Hz is of special interest because it improves imaging of the subsurface. The frequency content of the air gun, the most commonly used marine ...
    • On Low Power, Analog Modules for Medical Ultrasound Imaging Systems 

      Halvorsrød, Thomas Moe (Doktoravhandlinger ved NTNU, 1503-8181; 2010:10, Doctoral thesis, 2010)
    • On Low-Complexity Implementation of Nonlinear Vector Precoding for Multi-Antenna Systems 

      Gardasevic, Vesna (Doktoravhandlinger ved NTNU, 1503-8181; 2011:112, Doctoral thesis, 2011)
      Wireless communication systems using multiple antennas at a transmitter, and many receivers, such as multiple-input multipleoutput (MIMO) broadcast systems, admit an application of a joint signal processing at the transmitter ...
    • On Multiple Domain Basis Functions and Their Application to Wire Radiators 

      Lysko, Albert A. (Doctoral Theses at NTNU, 1503-8181; 2010:102, Doctoral thesis, 2010)
      The Method of Moments (MoM) is a general method for solving linear problems, including electromagnetic problems, such as radiation and scattering of electromagnetic waves. The applications of the method include analysis ...
    • On Narrowband Interference Mitigation Methods for Robust Wireless Sensor Networks 

      Moussavinik, Hessam (Doktoravhandlinger ved NTNU, 1503-8181; 2013:83, Doctoral thesis, 2013)
      In this dissertation different approaches to robustness in ultra wideband (UWB) wireless sensor networks, specifically biomedical applications, are studied. UWB wireless sensor networks are unlicensed users of the frequency ...
    • On Path Length Estimation for Wireless Capsule Endoscopy 

      Bjørnevik, Anders; Floor, Pål Anders; Balasingham, Ilangko (Chapter, 2018)
      Wireless capsule endoscopy (WCE) is a non-invasive technology used for inspection of the gastrointestinal tract. Localization of the capsule is a vital part of the system enabling physicians to identify the position of ...
    • On Power Consumption Issues in FIR Filters with Application to Communication Receivers:Complexity, Word length,and Switching Activity 

      Havashki, Asghar (Doktoravhandlinger ved NTNU, 1503-8181; 2009:201, Doctoral thesis, 2009)
      Power consumption in CMOS VLSI circuits has in recent years become a major design constraint. This is in particular important for wireless networks, due to the limited life time of the batteries that wireless nodes are ...
    • On Signal Recovery: Independent Component Analysis for Multiple Measurement Vectors and Source Separation 

      Fouladi, Seyyed Hamed (Doctoral theses at NTNU;2018:381, Doctoral thesis, 2018)
      In many applications such as natural sciences, medicine or imaging, some hidden features are to be extracted using some measurements. This arises inverse problem where the cause required to be obtained using the measurement. ...
    • On the analysis and design of wireless communication systems using tools from statistical physics 

      Miguel de Juan, Rodrigo Vicente de (Doktoravhandlinger ved NTNU, 1503-8181; 2009:7, Doctoral thesis, 2009)
      The present dissertation is concerned with the analysis and design of wireless communication systems using mathematical tools imported from the field of statistical mechanics. In particular, methods traditionally used to ...
    • On the Design and Analysis of Shannon-Kotel’nikov Mappings for Joint-Source-Channel Coding 

      Hekland, Fredrik (Doktoravhandlinger ved NTNU, 1503-8181; 2007:103, Doctoral thesis, 2007)
      In this dissertation, we explore the possibility of transmitting discrete-time, continuous amplitude sources over discrete-time, continuous-amplitude channels by using non-linear direct source-channel mappings. This is a ...
    • On the Design and Optimization of OFDM Systems 

      Lin, Gang (Doktoravhandlinger ved NTNU, 1503-8181; 2006:196, Doctoral thesis, 2006)
      In this thesis, some selected aspects of OFDM systems have been investigated. We focus on the modulation and demodulation techniques, such as efficient equalization, robustness to carrier frequency offset (CFO) and CFO ...