Search for dissertations about: "Additive noise"

Showing result 1 - 5 of 56 swedish dissertations containing the words Additive noise.

  1. 1. The impact of railway vibration and noise on sleep

    Author : Michael Smith; Göteborgs universitet.; Gothenburg University.; [2017]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; railway vibration; noise; sleep disturbance; polysomnography; cardiovascular disease;

    Abstract : Sleep is a vital component of good health, and sleep loss is associated with impaired cognition, decreased psychomotor performance, cardiovascular disease, adverse effects on endocrine and metabolic function, negative mood, impaired memory, and more. A growing burden of freight transportation on global railway networks will likely lead to an increase in nocturnal vibration and noise at nearby dwellings. READ MORE

  2. 2. Detection in Digital Communication Systems with Phase Noise

    Author : Florent Munier; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Phase noise; estimation; single carrier modulation; Wiener process;

    Abstract : In every communication system, the limitations of the hardware sets a constraint on the overall system performance. More often than not, these limitations are not taken into account during the system design stage where the hardware is considered ideal. READ MORE

  3. 3. On weak and strong convergence of numerical approximations of stochastic partial differential equations

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Fredrik Lindgren; Göteborgs universitet.; Gothenburg University.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Additive noise; Cahn-Hilliard-Cook equation; Error estimate; Finite element; Hyperbolic equation; Parabolic equation; Rational approximation; Stochastic partial differential equation; Strong convergence; Truncation; Wiener process; Weak convergence;

    Abstract : This thesis is concerned with numerical approximation of linear stochastic partialdifferential equations driven by additive noise. In the first part, we develop aframework for the analysis of weak convergence and within this framework weanalyze the stochastic heat equation, the stochastic wave equation, and the linearizedstochastic Cahn-Hilliard, or the linearized Cahn-Hilliard-Cook equation. READ MORE

  4. 4. The Finite Element Method for Fractional Order Viscoelasticity and the Stochastic Wave Equation

    University dissertation from Göteborg : Chalmers University of Technology and University of Gothenburg

    Author : Fardin Saedpanah; Göteborgs universitet.; Gothenburg University.; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; finite element method; continuous Galerkin method; linear viscoelasticity; fractional calculus; fractional order viscoelasticity; weakly singular kernel; stability; a priori error estimate; a posteriori error estimate; stochastic wave equation; additive noise; Wiener process; strong convergence.;

    Abstract : This thesis can be considered as two parts. In the first part a hyperbolic type integro-differential equation with weakly singular kernel is considered, which is a model for dynamic fractional order viscoelasticity. In the second part, the finite element approximation of the linear stochastic wave equation is studied. READ MORE

  5. 5. Finite element approximation of the deterministic and the stochastic Cahn-Hilliard equation

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Ali Mesforush; Göteborgs universitet.; Gothenburg University.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; finite element; a priori error estimate; stochastic integral; mild solution; dual weighted residuals; a posteriori error estimate; additive noise; Wiener process; Cahn-Hilliard equation; existence; regularity; Lya- punov functional; stochastic convolution;

    Abstract : This thesis consists of three papers on numerical approximation of the Cahn-Hilliard equation. The main part of the work is concerned with the Cahn-Hilliard equation perturbed by noise, also known as the Cahn-Hilliard-Cook equation. READ MORE