Sökning: "obemannade system"

Visar resultat 1 - 5 av 84 uppsatser innehållade orden obemannade system.

  1. 1. Sjösäkerhet i en digitaliserad sjöfart : En studie om effekter på sjösäkerheten i en framtida digitaliserad sjöfart

    Uppsats för yrkesexamina på grundnivå, Linnéuniversitetet/Sjöfartshögskolan (SJÖ)

    Författare :Hannes Örberg Kätterer; [2023]
    Nyckelord :Ship; Navigation; Digitalization; Safety; Ship officer; Human Factor; Education; Organization; Fartyg; navigation; digitalisering; säkerhet; sjöbefäl; mänsklig faktor; utbildning; organisation;

    Sammanfattning : Sjöfarten har förändrats genom tiderna och fartygen har utrustats med avancerad teknologi. Trots högutbildade operatörer och högteknologiska fartyg så inträffar allvarliga sjöolyckor som kan härledas till mänskliga fel och teknologiska brister. LÄS MER

  3. 2. Exogenous Fault Detection in Aerial Swarms of UAVs

    Master-uppsats, KTH/Matematik (Avd.)

    Författare :Maja Westberg; [2023]
    Nyckelord :Exogenous Fault Detection; Local Outlier Factor; Aerial Swarm; Unmanned Aerial Vehicle; Behavioral Feature Vector; Outlier Detection; Cluster Analysis; Exogen Feldetektering; Local Outlier Factor; Drönarsvärm; Obemannad Drönare; Beteendevektor; Avvikelse-Analys; Kluster-Analys;

    Sammanfattning : In this thesis, the main focus is to formulate and test a suitable model forexogenous fault detection in swarms containing unmanned aerial vehicles(UAVs), which are aerial autonomous systems. FOI Swedish DefenseResearch Agency provided the thesis project and research question. LÄS MER

  4. 3. 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

  5. 4. Local traversability assessment in an unmanned ground vehicle : An analysis of mobility on the UGV Husky

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

    Författare :Kidus Y. Getahun; [2023]
    Nyckelord :UGV; Husky; Robotics Operating System; Traversability Estimation; Vehicle Dynamics; Elevation Mapping; UGV; Husky; Framkomlighets Bedömning; Fordonsdynamik;

    Sammanfattning : This thesis project aims to learn and understand more about implementing a path planner to the unmanned ground vehicle (UGV), UGV Husky, specifically its traversability algorithm, and investigate how it could be further improved. A surrounding grid is generated around the UGV where each cell contains information connected to its traversability. LÄS MER

  7. 5. Channel Estimation and Power Control Algorithms in the Presence of Channel Aging

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

    Författare :Yan Bixing; [2023]
    Nyckelord :Fading channel; auto-regressive model; power allocation; uncrewed aerial vehicle networks; Fading kanal; auto-regressiv modell; krafttilldelning; obemannade flygfordonsnätverk;

    Sammanfattning : Power allocation algorithms that determine how much power should be allocated to pilot and data symbols play an important role in addressing the trade-off between accurate channel estimation and high high spectral efficiency for data symbols in the presence of time-varying fading channels. Dealing with this trade-off is highly non-trivial when the channel changes or ages rapidly in time. LÄS MER