Search for dissertations about: "Helicopter"

Showing result 6 - 10 of 24 swedish dissertations containing the word Helicopter.

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

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

    Abstract : 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. READ MORE

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

    Author : Bourhane Kadmiry; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Computer science; Datavetenskap;

    Abstract : 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. READ MORE

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

    Author : Marcus Thuresson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : 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.;

    Abstract : 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. READ MORE

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

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

    Abstract : 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. READ MORE

  7. 10. Active Noise Control in Aircraft : Algorithms and Applications

    Author : Sven Johansson; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; active noise control; feedforward control; filtere-x lms algorithm; complex lms; multichannel system; multiple reference; aircraft; headset;

    Abstract : The thesis consists of five papers which are divided into three main parts. Parts A and B deal with active noise control in a propeller aircraft application, whereas Part C deals with active noise control in a helicopter application. READ MORE