Sökning: "rescaling"

Visar resultat 1 - 5 av 23 uppsatser innehållade ordet rescaling.

  1. 1. ISAR Imaging Enhancement Without High-Resolution Ground Truth

    Master-uppsats, Linköpings universitet/Datorseende

    Författare :Moltas Enåkander; [2023]
    Nyckelord :SAR; SAR Imaging; ISAR; ISAR Imaging; Machine learning; Convolutional neural network; CNN; neural network; Super resolution; Unsupervised learning;

    Sammanfattning : In synthetic aperture radar (SAR) and inverse synthetic aperture radar (ISAR), an imaging radar emits electromagnetic waves of varying frequencies towards a target and the backscattered waves are collected. By either moving the radar antenna or rotating the target and combining the collected waves, a much longer synthetic aperture can be created. LÄS MER

  3. 2. Electrodynamic field at spatial infinity

    Master-uppsats, KTH/Fysik

    Författare :Jakob Myhrman; [2022]
    Nyckelord :Spatial infinity; Conformal rescaling; Minkowski space; Penrose Diagram; Einstein universe; Newman-Penrose formalism; Sigma-process; Resolution of singularities; Maxwell s equations; Cylinder at spatial infinity; Rumslig oändlighet; Konform omskalning; Minkowski rummet; Penrose Diagram; Einsteins universum; Newman-Penrose formalismen; Sigma-processen; Singularitetupplösning; Maxwells ekvationer; Cylindern vid rumslig oändlighet;

    Sammanfattning : The treatment of spatial infinity is one of the remaining major open problems in the theory of isolated self-gravitating systems. Especially when one wants to model scattering of gravitational radiation in spacetime. In this thesis the conformal theory is used to study simple electromagnetic fields, close to spatial infinity. LÄS MER

  4. 3. Kalman-Filter Design and Evaluation for PMSM Rotor-Temperature Estimation

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Daniel Mårtensson; [2022]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The permanent magnet synchronous motor, PMSM, is an efficient electrical motor that has seen a greater prevalence in the automotive industry from the increasing demand for electrical vehicles. Managing the temperature of the permanent magnet rotor is important to optimize motor utilization and avoid hardware failures. LÄS MER

  5. 4. Flernivåstyrning och sambandet mellan regional utveckling och kommunal översiktsplanering

    Kandidat-uppsats, Blekinge Tekniska Högskola/Institutionen för fysisk planering

    Författare :Malin Flagstad; [2022]
    Nyckelord :Regional planering; regional utveckling; governance; flernivåstyrning; rescaling;

    Sammanfattning : Regionerna ansvarar för den regionala utvecklingsplaneringen men besitter inte själv beslutanderätt kring genomförandet av den fysiska planeringen. Kommunerna har därtill inte mandat att hantera problem som kräver regionala lösningar. LÄS MER

  7. 5. Borders, visions and regions. The cross-border governance capacity of the Øresund Region. How to improve influence of cross-border regions

    Master-uppsats, Lunds universitet/Institutionen för kulturgeografi och ekonomisk geografi

    Författare :Jens Bjørn Gefke Grelck; [2021]
    Nyckelord :Øresund; cross-border regions; Greater Copenhagen; governance capacity; rescaling; institutional reorganization; Social Sciences;

    Sammanfattning : In recent years, cross-border regions have been challenged by multiple levels governance creating barriers rather than solutions to support cross-border spaces. This study aims at inquiring how the role of cross-border regions is changing in relation to their governance capacity. LÄS MER