Sökning: "unmanned aerial vehicle UAV"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden unmanned aerial vehicle UAV.

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

    Författare :Gianpaolo Conte; Patrick Doherty; Rod Walker; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Unmanned Aerial Vehicles; Guidance; Kalman filter; Vision-based Navigation; Geo-referenced Imagery; Autonomous Landing; Target Geo-location; TECHNOLOGY Information technology Computer science; TEKNIKVETENSKAP Informationsteknik 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. Navigation Functionalities for an Autonomous UAV Helicopter

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Gianpaolo Conte; Patrick Doherty; Marconi Lorenzo; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Unmanned Aerial Vehicle; Control System; Path Following; Path Planning; Sensor Fusion; Vision Based Landing; Kalman Filter; Real-Time; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : This thesis was written during the WITAS UAV Project where one of the goals has been the development of a software/hardware architecture for an unmanned autonomous helicopter, in addition to autonomous functionalities required for complex mission scenarios. The algorithms developed here have been tested on an unmanned helicopter platform developed by Yamaha Motor Company called the RMAX. LÄS MER

  3. 3. On magnetic amplifiers in aircraft applications

    Detta är en avhandling från Stockholm : KTH

    Författare :Lars Austrin; Göran Engdahl; Lars Liljestrand; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; magnetic amplifier magamp ; amorphous; power losses; control winding; self-saturating; hysteresis; converter; more electric aircraft MEA ; inverter; power-by-wire; dymola; permanent magnet generator; PM-generator transformer rectifier unit TRU ; constant speed drive CSD ; excess losses or anomalous losses; modeling; simulation; unmanned aerial vehicle UAV ; TECHNOLOGY Electrical engineering; electronics and photonics Electrical engineering; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elektroteknik;

    Sammanfattning : In the process of designing an electric power supply system for an aircraft, parameters like low weight and low losses are important. Reliability, robustness and low cost are other important factors. LÄS MER

  4. 4. Using on-line simulation in UAV path planning

    Detta är en avhandling från Stockholm : KTH

    Författare :Farzad Kamrani; Rassul Ayani; Steve Turner; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Electrical engineering; electronics and photonics Electronics; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elektronik;

    Sammanfattning : In this thesis, we investigate the problem of Unmanned Aerial Vehicle (UAV) path planning in search or surveillance mission, when some a priori information about the targets and the environment is available. A search operation that utilizes the available a priori information about the initial location of the targets, terrain data, and information from reasonable assumptions about the targets movement can in average perform better than a uniform search that does not incorporate this information. LÄS MER

  5. 5. Planning Methods for Aerial Exploration and Ground Target Tracking

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Per Skoglar; Fredrik Gustafsson; Matthijs Spaan; [2009]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : This thesis considers unmanned airborne surveillance systems equipped with electroopticalvision sensors. The aim is to increase the level of autonomy and improve thesystem performance by the use of planning methods for aerial exploration and targettracking. LÄS MER