Sökning: "UAV"

Visar resultat 1 - 5 av 253 uppsatser innehållade ordet UAV.

  1. 1. Evaluated density estimates of young forest stands using high resolution 2D imagery from UAV

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Forest Resource Management

    Författare :Victor Kingstad; [2020]
    Nyckelord :UAV; forestry; inventory; survey; cleaning; tending; PCT; pre com-mercial thinning;

    Sammanfattning : After more than three decades of advanced technology and methods to evaluate young forest attributes, the forestry still prefers laborious field surveys in regenera-tion forests. Preceding studies have virtually all successfully identified the saplings, but the cost has outweighed the benefits or at least not yet convinced the companies to step away from the traditional field surveys; high-resolution photogrammetric point clouds and ALS-data can provide accurate estimations of the biophysical prop-erties but requires intense data processing. LÄS MER

  3. 2. Formation Control and UAV Path Finding Under Uncertainty : A contingent and cooperative swarm intelligence approach

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för datavetenskap och medieteknik (DM)

    Författare :Mehdi Hmidi; [2020]
    Nyckelord :Emergence; Swarm Intelligence; Cooperation; Consensus; Path Find- ing; Uncertainty; Obstacle avoidance; Unknown Beforehand; Decision making; Flocking behavior; Cohesion; Separation; Alignment; Steering; Pattern forma- tion; Self-organization; Swarm; UAV; Drone;

    Sammanfattning : Several of our technological breakthroughs are influenced by types of behavior and structures developed in the natural world, including the emulation of swarm in- telligence and the engineering of artificial synapses that function like the human mind. Much like these breakthroughs, this report examines emerging behaviors across swarms of non-communicating, adaptive units that evade obstacles while find- ing a path, to present a swarming algorithm premised on a class of local rule sets re- sulting in a Unmanned Aerial Vehicle (UAV) group navigating together as a unified swarm. LÄS MER

  4. 3. Atmospheric Turbulence Study Utilizing a Five-Hole Probe on an Unmanned Aerial Vehicle (UAV)

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Zaida Gomez Kuri; [2020]
    Nyckelord :Atmospheric Turbulence; Drones;

    Sammanfattning : .... LÄS MER

  5. 4. Analys av sprickutveckling på markytan i Kiirunavaara gruvområde samt utvärdering av fotogrammetri

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Oskar Schölund; [2020]
    Nyckelord :sprickutbredning; UAV; markdeformationer; hängväggen; sprickinventering; CloudCompare; qFacet;

    Sammanfattning : LKAB (Luossavaara-Kiirunavara Aktiebolag) bryter och förädlar järnmalm i Norrbotten. Under 2018 omsatte LKAB cirka 26 miljarder kronor. Koncernen äger två underjordsgruvor, en i Malmberget och en i Kiruna, samt tre dagbrottsgruvor i Svappavaara, varav en för tillfället är i drift. LÄS MER

  7. 5. Robust Autonomous Landing of Fixed-Wing UAVs in Wind

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Tobias Fridén; [2020]
    Nyckelord :Unmanned Aerial Vehicles; Landing; Wind; Optimization; Motion planning;

    Sammanfattning : Fixed-wing UAVs are today used in many different areas, from agriculture to search and rescue operations. Through various research efforts, they are becoming more and more autonomous. However, the procedure of landing a fixed-wing UAV remains a challenging task, which requires manual input from an experienced pilot. LÄS MER