Sökning: "uncrewed aerial vehicles"

Hittade 3 uppsatser innehållade orden uncrewed aerial vehicles.

  1. 1. Performance Analysis of the Uplink of Multi-antenna Systems Operating in Aging Channels

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

    Författare :Prasetyo Putranto; [2023]
    Nyckelord :Channel aging; Pilot spacing; Rayleigh; Rician; Spectral efficiency; Uncrewed aerial vehicles; Kanalåldring; Pilotavstånd; Rayleigh; Rician; Spectral effektivitet; Obemannade flygfordon;

    Sammanfattning : In wireless communications, employing pilot symbols enables to estimate the state of the wireless channel at the expense of decreasing the number of symbols available for transmitting data. Addressing this trade-off is particularly challenging when the channel changes rapidly over time, since channel estimates become obsolete over short transmission periods. LÄS MER

  3. 2. Characteristics of instream wood following alluvial river restoration : Using Uncrewed Aerial Vehicles

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Martina Fjällberg; [2023]
    Nyckelord :River restoration; instream wood; uncrewed aerial vehicles; fluvial geomorphology.;

    Sammanfattning : River restoration is something that is often used to help restore watercourses that were historically used for timber floating. In these restorations, instream wood (IW) plays a big role in increasing biodiversity and habitat heterogeneity in watercourses. LÄS MER

  4. 3. Multi-agent route planning for uncrewed aircraft systems operating in U-space airspace

    Master-uppsats, Linköpings universitet/Artificiell intelligens och integrerade datorsystem

    Författare :Yohan Ayoub; [2023]
    Nyckelord :MAPF; multi-agent systems; multi-agent path finding; U-space; UAV; UAS; search algorithms;

    Sammanfattning : Society today brings a high pace development and demand of Artificial intelligence systems as well as robotics. To further expand and to take one step closer to have Unmanned Aerial Vehicles (UAVs) working in the cities, the European Union Aviation Safety Agency launched a project that introduces U-space airspace, an airspace where UAVs, for instance, are allowed to operate for commercial services. LÄS MER