Sökning: "Unmanned Ground Vehicles"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden Unmanned Ground Vehicles.

  1. 1. Vision-Based Localization and Guidance for Unmanned Aerial Vehicles

    Författare :Gianpaolo Conte; Patrick Doherty; Rod Walker; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Unmanned Aerial Vehicles; Guidance; Kalman filter; Vision-based Navigation; Geo-referenced Imagery; Autonomous Landing; Target Geo-location; Computer science; Datavetenskap;

    Sammanfattning : The thesis has been developed as part of the requirements for a PhD degree at the Artificial Intelligence and Integrated Computer System division (AIICS) in the Department of Computer and Information Sciences at Linköping University.The work focuses on issues related to Unmanned Aerial Vehicle (UAV) navigation, in particular in the areas of guidance and vision-based autonomous flight in situations of short and long term GPS outage. LÄS MER

  2. 2. Model Predictive Control for Cooperative Rendezvous of Autonomous Unmanned Vehicles

    Författare :Linnea Persson; Bo Wahlberg; Jonathan How; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Autonomous systems; Model Predictive Control; MPC; Autonomous landing; UAV; Unmanned Aerial Vehicle; Moving target; Quadcopter; Implementation; Variable Horizon MPC; Adaptive Horizon MPC; Autonom landning; Modell-prediktiv reglerteknik; quadcopter; autonoma system; MPC; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : This thesis investigates cooperative maneuvers for aerial vehicles autonomously landing on moving platforms. The objective has been to develop methods for safely performing such landings on real systems subject to a variety of disturbances, as well as physical and computational constraints. LÄS MER

  3. 3. Automation in forestry : development of unmanned forwarders

    Författare :Ola Ringdahl; Thomas Hellström; Tomas Nordfjell; Arto Visala; Umeå universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; NATURVETENSKAP; LANTBRUKSVETENSKAPER; NATURAL SCIENCES; AGRICULTURAL SCIENCES; Computer science; Datavetenskap; Forest engineering; Skogsteknik; computer and systems sciences; data- och systemvetenskap;

    Sammanfattning : For the last 50 year, forestry operations have become more and more mechanized. In modern forestry in Europe two machines are typically used; a harvester that fells, debranches and cross-cuts the trees into logs and a forwarder that transports them to the nearest road. LÄS MER

  4. 4. On Cooperative Surveillance, Online Trajectory Planning and Observer Based Control

    Författare :David A. Anisi; Xiaoming Hu; Randal Beard; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Surveillance Missions; Minimum-Time Surveillance; Unmanned Ground Vehicles; Connectivity Constraints; Combinatorial Optimization; Computational Optimal Control; Receding Horizon Control; Mission Uncertainty; Safety; Task Completion; Adaptive Grid Methods; Missile Guidance; Nonlinear Observer Design; Active Observers; Non--uniformly Observable Systems; Mobile Robotic Systems; Intrinsic Observers; Differential Geometric Methods; Euler-Lagrange Systems; Contraction Analysis.; Optimization; systems theory; Optimeringslära; systemteori; Applied mathematics; Tillämpad matematik;

    Sammanfattning : The main body of this thesis consists of six appended papers. In the  first two, different  cooperative surveillance problems are considered. The second two consider different aspects of the trajectory planning problem, while the last two deal with observer design for mobile robotic and Euler-Lagrange systems respectively. LÄS MER

  5. 5. Increasing Autonomy of Unmanned Aircraft Systems Through the Use of Imaging Sensors

    Författare :Piotr Rudol; Andrzej Szalas; Pascual Campoy; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; UAV; UAS; UAV autonomy; human-body detection; color-thermal image fusion; vehicle tracking; geolocation; UAV indoor navigation;

    Sammanfattning : The range of missions performed by Unmanned Aircraft Systems (UAS) has been steadily growing in the past decades thanks to continued development in several disciplines. The goal of increasing the autonomy of UAS's is widening the range of tasks which can be carried out without, or with minimal, external help. LÄS MER