Essays about: "UAV"

Showing result 1 - 5 of 157 essays containing the word UAV.

  1. 1. Design of a UAV-based radio receiver for avalanche beacon detection using software defined radio and signal processing

    University essay from Uppsala universitet/Signaler och System

    Author : Richard Hedlund; [2019]
    Keywords : Signal processing; Software Defined Radio; Avalanche; Beacon; Antenna; SDR; DSP; Signalbehandling; Mjuvarudefinierad Radio; Lavin; Lavinsändare; Antenn; SDR; DSP;

    Abstract : A fully functional proof of concept radio receiver for detecting avalanche beacons atthe frequency 457 kHz was constructed in the work of this master thesis. The radioreceiver is intended to be mounted on an unmanned aerial vehicle (UAV or drone)and used to aid the mountain rescue teams by reducing the rescue time in findingavalanche victims carrying a transmitting beacon. READ MORE

  2. 2. RGB and Multispectral UAV image classification of agricultural fields using a machine learning algorithm

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Sigurbjörn Jónsson; [2019]
    Keywords : Physical Geography and Ecosystem Analysis; UAV; classification; Random Forest; Geomatics; segmentation; Earth and Environmental Sciences;

    Abstract : A common technique within image analysis is image classification which describes the process of reducing the information content of an image into few user-defined classes. With the emergence of unmanned aerial vehicles (UAVs), high spatial resolution (cm-level) images can be collected. READ MORE

  3. 3. Aerial Thermography Inspections in Large-Scale PV Plants

    University essay from Högskolan Dalarna/Energiteknik

    Author : Salvador Selva Marti; [2018]
    Keywords : Infrared thermography inspection; large-scale PV plants; drone; unmanned aerial vehicles; Quintas Energy; operation and maintenance; monitoring operations;

    Abstract : In order to successfully compete against the use of fossil fuels to generate electricity, one of the challenges in the photovoltaic (PV) business currently in focus is on the asset management of large PV plants, in which developing control techniques to prognosticate and evaluate the future energy performance will be essential. Infrared thermography inspections can give meaningful support to assess the quality and performance of PV modules. READ MORE

  4. 4. Analysis of autonomous flight algorithms for an unmanned aerial vehicle

    University essay from Umeå universitet/Institutionen för fysik

    Author : Mattias Sjöberg; [2018]
    Keywords : UAV; SLAM; Split-And-Merge; APFA; V-REP; Inverse dynamics; FBLC; EKF;

    Abstract : Unmanned Aerial Vehicles (UAV) have been heavily studied in the past decade, where autonomous flights have been a popular subject. More complex applications have led to higher requirements on the autonomous flight algorithms and the absence of performance data complicates the selection of what algorithm to use for various applications. READ MORE

  5. 5. UAVs for railway infrastructure operations and maintenance activities

    University essay from KTH/Maskinkonstruktion (Inst.); KTH/Maskinkonstruktion (Inst.)

    Author : MADELEINE SHEIKH; ALEXANDER ÖRTENGREN; [2018]
    Keywords : : UAV; UAS; Drone; Railway; Maintenance; Infrastructure; Operations; Remote inspection; Research; Autonomous; Rotor; Fixed-wing; UAV; UAS; Drönare; Järnväg; Underhåll; Infrastruktur; Drift; Fjärrinspektion; Autonom; Rotor; Fixed-wing.;

    Abstract : The railway infrastructure needs to be safe, reliable and efficient in order to meet the growing demand of sustainable transportation methods. One of the main problems the railway industry faces today is that a higher traffic load increases the need for maintenance, at the same time as it reduces the availability of gaps in the timetables to perform maintenance activities. READ MORE