Sökning: "scan matching"

Visar resultat 1 - 5 av 25 uppsatser innehållade orden scan matching.

  1. 1. Phenomenological exploration of flavored Grand Unification through high-scale matching and renormalization group flow

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Författare :Hector Tiblom; [2023]
    Nyckelord :Grand Unification; GUT; trinification; spontaneous symmetry breaking; effective field theory; EFT; high-scale matching; renormalization group flow; Physics and Astronomy;

    Sammanfattning : The phenomenological success of the Standard Model (SM), and its unification of the electromagnetic and weak forces has inspired the search for a Grand Unified Theory (GUT), that dynamically reduces to the SM at low energies. In this work, we consider one such GUT, based on the trinification model [SU(3)]³ with an additional local SU(2) family symmetry, that is then broken directly to the gauge symmetry group of the SM. LÄS MER

  3. 2. Tuning of the ESS Drift Tube Linac using Machine Learning

    Magister-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/European Spallation Source ESS AB

    Författare :Johan Lundquist; [2022]
    Nyckelord :Accelerator; drift tube linac; machine learning; neural network; ESS; linac; tuning; proton; longitudinal dynamics; beam physics; Physics and Astronomy;

    Sammanfattning : The European Spallation Source, currently under construction in Lund, Sweden, will be the world's brightest neutron source. It is driven by a linear accelerator designed to accelerate a beam of protons with 62.5 mA, 2.86 ms long pulses, working at 14 Hz. LÄS MER

  4. 3. Dual-polarized fully-metallic Vivaldi antenna array in a triangular lattice

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Omar Orgeira Alvarez; [2022]
    Nyckelord :Base station; Mobile communications; Phased arrays; Vivaldi antenna; Stripline; Basstation; Mobilkommunikation; Phased arrays; Vivaldi-antenn; Stripline;

    Sammanfattning : New mobile communication generations need electromagnetic sensors capable of steering their high-directive beams towards the users. Conventional base stations use square lattice phased arrays to accomplish this task. These arrays are composed of a large number of radiating elements to achieve the required high directivity and scanning capabilities. LÄS MER

  5. 4. Real Time Lidar and ICP-Based Odometry in Dynamic Environments

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Carl Hampus Hedén; Ludvig Hansson Granström; [2022]
    Nyckelord :ICP; Localization;

    Sammanfattning : A robust and highly accurate positioning system is required to transition to fully autonomous vehicles in society.  This thesis investigates the potential for lidar sensors to be a part of a localization system, adding redundancy in case of an outage in a global navigation satellite system GNSS. LÄS MER

  7. 5. Optimisation of line of sight matching to obtain wind vectors from the SIW satellite

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Theresia Hestad; [2021]
    Nyckelord :Remote sensing; Wind measurements; Middle atmosphere; Retrieval; Scan bias; Satellite;

    Sammanfattning : SIW, Stratospheric Inferred Winds, is one of the upcoming Swedish research satellites, aiming to study the winds in the middle atmosphere by measuring the Doppler shifts in molecules such as O3 with a limb viewing sub-mm spectrometer. By conducting simulations on the expected observations, the pointing sensitivity requirement of the satellite was investigated to be able to optimise the matching of the wind vectors. LÄS MER