Sökning: "Helicopter"

Visar resultat 1 - 5 av 24 avhandlingar innehållade ordet Helicopter.

  1. 1. Fuzzy Control for an Unmanned Helicopter

    Författare :Bourhane Kadmiry; Dimiter Driankov; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Helicopter; Robust control; Fuzzy gain scheduling; Gradient descent method; Computer science; Datavetenskap;

    Sammanfattning : The overall objective of the Wallenberg Laboratory for Information Technology and Autonomous Systems (WITAS) at Linköping University is the development of an intelligent command and control system, containing vision sensors, which supports the operation of a unmanned air vehicle (UAV) in both semi- and full-autonomy modes. One of the UAV platforms of choice is the APID-MK3 unmanned helicopter, by Scandicraft Systems AB. LÄS MER

  2. 2. The spectral reflectance of coniferous tree stands and of barley influenced by stress : an analysis of field measured spectral data

    Författare :Johan Kleman; Stockholms universitet; []
    Nyckelord :spectral reflectance; field measurement; middle infrared; crops; fertilisation; irrigation; coniferous forest; helicopter; measuring geometry;

    Sammanfattning : This thesis focuses on the spectral signatures for vegetation. Knowledge about the spectral characteristics of different vegetation types is imperative for an efficient use of existing remote sensing systems, and also to provide guidelines for sensor development. LÄS MER

  3. 3. The Use of Case-Based Reasoning in a Human-Robot Dialog System

    Författare :Karolina Eliasson; Erik Sandewall; Jan Alexandersson; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Dialog manager; machine learning; case-based reasoning; case-based planning; helicopter; natural language; Computer science; Datalogi;

    Sammanfattning : As long as there have been computers, one goal has been to be able to communicate with them using natural language. It has turned out to be very hard to implement a dialog system that performs as well as a human being in an unrestricted domain, hence most dialog systems today work in small, restricted domains where the permitted dialog is fully controlled by the system. LÄS MER

  4. 4. Prediction as a Knowledge Representation Problem : A Case Study in Model Design

    Författare :Patrik Haslum; Patrick Doherty; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; WITAS; Unmanned irial Vehicle UAV ; helicopter; traffic surveillance; remote photogrammetry; Computer science; Datavetenskap;

    Sammanfattning : The WITAS project aims to develop technologies to enable an Unmanned Airial Vehicle (UAV) to operate autonomously and intelligently, in applications such as traffic surveillance and remote photogrammetry. Many of the necessary control and reasoning tasks, e.g. LÄS MER

  5. 5. Navigation Functionalities for an Autonomous UAV Helicopter

    Författare :Gianpaolo Conte; Patrick Doherty; Marconi Lorenzo; Linköpings universitet; []
    Nyckelord :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