Sökning: "Airborne radar"

Visar resultat 1 - 5 av 28 uppsatser innehållade orden Airborne radar.

  1. 1. Studies of the PMWE : Polar Mesosphere Winter Echoes

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

    Författare :Simon Persson; [2022]
    Nyckelord :Polar; Mesosphere; Winter; Echoes; ESRAD; Infrasound; PMWE; PMSE; Summer; Radar; VHF; MST; MLT; SPE; HSS; Solar; Wind; evanescent; viscosity; FCA; 42;

    Sammanfattning : This Master thesis examines a phenomenon that occurs in the upper polar atmosphere, namely, Polar Mesospheric Winter Echoes, or PMWEs. PMWEs are radar echoes observed by Very High Frequency Mesosphere Stratosphere Troposphere (VHF MST) radar, from altitudes of 60 to 76 km at 7 to 15 UT, in the winter months from the middle of September to the beginning of May. LÄS MER

  3. 2. Multi-objective optimization for placing airspace surveillance observers

    Master-uppsats, Göteborgs universitet/Institutionen för data- och informationsteknik

    Författare :Amanda Anderson; [2021-08-13]
    Nyckelord :Facility location; multi-objective optimization; ant colony algorithm; genetic algorithm; pareto optimal; observer placement; 3D viewshed;

    Sammanfattning : Reconnaissance is an important aspect of military planning. Tools that help an alysts monitor and make informed choices are vital for avoiding costly situations. The use of ground-based radar sensors is a common method for monitoring for both land-based and airborne threats. LÄS MER

  4. 3. Adaptive clutter suppression in airborne surveillance radar

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

    Författare :Sabina Björk; [2021]
    Nyckelord :Clutter suppression; Radar; STAP;

    Sammanfattning : Air- and spaceborne radars play an important role for civilian and military use. There are numerous applications such as earth observations, surveillance and others. High performance clutter suppression is a crucial part of many of these radar systems. LÄS MER

  5. 4. Parallellisering av Sliding Extensive Cancellation Algorithm (ECA-S) för passiv radar med OpenMP

    Uppsats för yrkesexamina på grundnivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Andreas Johansson Hultberg; [2021]
    Nyckelord :Extensive Cancellation Algorithm ECA ; ECA-S; Passive Radar; Optimization; OpenMP; Parallel Processing; Shared Memory Model; Central Processing Unit CPU ;

    Sammanfattning : Software parallelization has gained increasing interest since the transistor manufacturing of smaller chips within an integrated circuit has begun to stagnate. This has led to the development of new processing units with an increasing number of cores. LÄS MER

  7. 5. Evaluation of Tracking Filters for Tracking of Manoeuvring Targets

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Ludvig Junler; [2020]
    Nyckelord :Interacting multiple model; Kalman filter; Target tracking;

    Sammanfattning : This thesis evaluates different solutions to the target tracking problem with the use of airborne radar measurements. The purpose of this report is to present and compare options that can improve the tracking performance when the target is performing various manoeuvres while the radar measurements are noisy. LÄS MER