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Visar resultat 6 - 10 av 24 avhandlingar som matchar ovanstående sökkriterier.

  1. 6. Sampling-based Path Planning for an Autonomous Helicopter

    Författare :Per Olof Pettersson; Patrick Doherty; Lars Karlsson; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Path Planning; Motion Planning; Helicopters; Probabilistic Roadmaps; Rapidly-exploring Random Trees; Computer science; Datalogi;

    Sammanfattning : Many of the applications that have been proposed for future small unmanned aerial vehicles (UAVs) are at low altitude in areas with many obstacles. A vital component for successful navigation in such environments is a path planner that can find collision free paths for the UAV. LÄS MER

  3. 7. Fuzzy gain scheduled visual servoing for an unmanned helicopter

    Författare :Bourhane Kadmiry; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer science; Datavetenskap;

    Sammanfattning : The overall objective of the Wallenberg Laboratory for Information Technology and Autonomous Systems (WITAS) at Linkoping University is the development of an intelligent command and control system, containing active-vision sensors, which supports the operation of an unmanned air vehicle (UAV). One of the UA V platforms of choice is the R5O unmanned helicopter, by Yamaha. LÄS MER

  4. 8. On neck load among helicopter pilots : effects of head worn equipment, whole body vibration and neck position

    Författare :Marcus Thuresson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Biomechanics; cervical spine; electromyography; head-worn equipment; helicopter pilots; laboratory; male; mechanical load; neck load; night vision goggles; rotary wing pilots; statistics; transmissibility; whole body vibration.;

    Sammanfattning : Introduction: Helicopter pilots complain of pain originating from the neck region. The causes are still basically unknown, but the ergonomic situation when flying a helicopter, with unfavorable load caused by static neck and body positions, whole-body vibration and heavy head-worn equipment, has been suggested as a risk factor. LÄS MER

  5. 9. Vision-Based Localization and Guidance for Unmanned Aerial Vehicles

    Författare :Gianpaolo Conte; Patrick Doherty; Rod Walker; Linköpings universitet; []
    Nyckelord :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

  7. 10. Neck pain in air force pilots : on risk factors, neck motor function and an exercise intervention

    Författare :Björn Äng; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :biomechanics; cervical pain; electromyography; military pilots; movement quality; muscle fatigue; muscle strength; neuromuscular; physiotherapy; range of motion;

    Sammanfattning : Neck pain is a medical problem in modern military aviation. While neck exercises are recommended, clinical trials of neck motor function have been less investigated. LÄS MER