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Dissertations / Theses on the topic 'UAV'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Andersson, Per-Olov. "UAV/UCAV i fredens tjänst : UAV/UCAV och dess operativa betydelse i framtida Peace Support Operations." Thesis, Försvarshögskolan, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-1898.

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Luftstridskrafter har spelat en betydande roll i senare tiders Peace Support Operations (PSO). Obemannade flygande system har varit en del av dessa insatser, hur kommer rollfördelningen att vara i framtiden? Syftet med uppsatsen är att undersöka och göra en bedömning avseende hur obemannade flygsystem kan utnyttjas och ha en roll i framtida Peace Suport Operations. Litteratur- och dokumentstudier, föreläsningar och intervjuer ligger som faktabakgrund för bedömningen av hur en framtida PSO kan se ut samt vilken roll obemannade flygsystem kan ha i en framtida Peace Suport Operation. Jämförelse h

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Hajri, Riadh. "UAV to UAV Target Detection and Pose Estimation." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/7351.

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The objective of this thesis is to investigate the feasibility of using computer vision to provide robust sensing capabilities suitable for the purpose of UAV to UAV detection and pose estimation using affordable CCD cameras and open coding libraries. We accomplish this by reviewing past literature about UAV detection and pose estimation and exploring comparison of multiple state-of-the-art algorithms. The thesis presents implementation studies of detection approaches including color-based detection and component-based detection. We also present studies of pose estimation methods including the

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Stalmakou, Artsiom. "UAV/UAS path planning for ice management information gathering." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for teknisk kybernetikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13232.

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The key objective of this work is the proposition of the path planning strategy for unmanned aerial vehicle (UAV) intended for information gathering in Arctic environments / ice-infested regions. Two diﬀerent path planning strategies are considered; one for analysis of the surveillance area deﬁned as a grid and the other for analysis of the surveillance area deﬁned as a sector. The mixed integer linear programming (MILP), YALMIP modeling language and GUROBI optimizer are used for formulation and solution of the path planning optimization problems. Furthermore, both path pl

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Holtby, Johan. "Autonom UAV." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-168611.

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In Abisko National Park there are a numberof weather stations. To be able toretrieve the data from the nodes in thefuture a Quadrocopter-prototype has beendeveloped during this master thesisproject as a first step. A quadrocopter isa helicopter with four rotors placed in across formation. The quadrocopter cannavigate autonomous between different GPSpositionsthat are updated during flighttrough Xbee-modules. All levels fromsources code, design of the electronics todevelopment of the chassis was performedduring the project. During GPS-navigationthe quadrocopter can achieve a stationaryposition w

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5

Dahl, David, and Fredrik Stetler. "UAV Antarctica." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-152700.

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One of the biggest problems of our time is the global warming. A direct result of this phenomena is the melting of ice of the glaciers on the north and the south pole. As this continues, the melted ice will contribute to an increase of the sea level, and may cause enormous natural disasters. To be able to prevent this, it’s important to study its affects. This reports contains a concept study of a Unmanned Aerial Vehicle, a UAV, set on the coast of Antarctica by the Australian owned base Davis Station to document the changes and retracting of the glacier borderline. The purpose of the aircraft

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Ljungbäck, Jacob, and David Williamsson. "UAV Helikoptertransmission." Thesis, KTH, Maskinkonstruktion (Inst.), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-176309.

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En grupp på Maskinkonstruktion, KTH har påbörjat arbetet med att utveckla en UAV helikopter (Förarlös helikopter) som framförallt är tänkt att användas vid minröjning. Ramen, rotorerna och motorn är valda och tillverkade men det behövs en transmission från motorn till rotorerna. Denna rapport innehåller utvecklingen av den transmissionen inklusive centrifugalkoppling, axlar och lager. Målet med arbetet är att utforma hela transmissionen från idé till färdig konstruktionslösning med tillhörande CAD modell. Arbetet innefattar däremot inte val av tillverkningsmetod, testflygning med färdig transm

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BOZKURT, Ugur, and Mustafa Aslan. "Assembly of a UAV : hardware design of a UAV." Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-3247.

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<p><em>This bachelor thesis is dedicated to assemble the hardware system of a UAV (Unmanned Aerial Vehicle) in order to prepare the platform for an autonomous flight in the air for a given path through the pre-programmed check points. A UAV is an aircraft that contains sensors, GPS, radio system, servomechanisms and computers, which provide the capability of an autonomous flight without a human pilot in the cockpit. A stable flight requires sensing the roll, pitch, and yaw angles of aircraft. Roll and pitch angles were ensured by a sensor system of FMA Direct Company called co-pilot flight sta

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Blomberg, Andreas. "Utvärdering av mätosäkerheten vid georeferering med UAS och Post Processed Kinematic-GNSS." Thesis, Högskolan i Gävle, Avdelningen för Industriell utveckling, IT och Samhällsbyggnad, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-22145.

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UAS has been become a very popular tool in surveying and evaluation of the systems measurement uncertainties are necessary. The most common method for georeferencing UAS data is to use ground control points (GCP) in order to use them in block adjustment. In recent years’ new techniques for direct georeferencing with UAS have been presented, which in theory means that the position of the UAS can be determined accurately enough and therefore GCP’s can be excluded. This study evaluates uncertainties of the UAS Freya from SmartPlanes that don’t need GCP’s for georeferencing. The technique applied

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Grafström, Erik, Erik Hansson, and Max Morén. "Quadrotor UAV : Konstruktion och användbarhetsstudie av en UAV i sensornätverk." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-143813.

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Quadrotor UAVs are self-stabilizing, autonomous flying machines that has recently become more popular than ever. Unmanned Aerial Vehicles have their roots in the military, where they were developed for use in reconnaissance and combat. During the last few years, advances in the fields of electronic sensors, electric motors and microcontrollers have enabled smaller designs and autonomic flight control even for private use. The quadrotor, which is the particular kind of UAV we are looking closer at in this paper, has 4 rotors in an X-like formation. This configuration has many advantages such as

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Löfqvist, Ulf. "Kollisionsundvikning för UAV." Thesis, Linköping University, Department of Electrical Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-8192.

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<p>I en obemannad flygfarkost måste datorer ta över pilotens förmåga att värdera risker och undvika kollisioner. På algoritmnivå brukar man dela in problemet i tre delar: Upptäckt och estimering av inblandade farkosters positioner och hastigheter, kollisionsriskberäkning och slutligen undanmanöver.</p><p>Saabs arbete med obemannade farkoster har tidigare berört kollisionsundvikning lite ytligt men nu börjat på större allvar. Det här examensarbetet är en del i denna satsning och har resulterat i ett sätt att beräkna kollisionsrisken samt ett sätt att beräkna en undanmanöver, givet att de inblan

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Pineda, Stephen Michael Joseph. "Sabino Canyon UAV." Thesis, The University of Arizona, 2014. http://hdl.handle.net/10150/321916.

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Palo, Cassie Marie. "Sabino Canyon UAV." Thesis, The University of Arizona, 2014. http://hdl.handle.net/10150/321927.

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Steinke, James David. "Sabino Canyon UAV." Thesis, The University of Arizona, 2014. http://hdl.handle.net/10150/321965.

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Smith, Winston. "Collaborative UAV Surveillance." OpenSIUC, 2019. https://opensiuc.lib.siu.edu/theses/2565.

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Autonomous collaborative robotics is a topic of significant interest to groups such as the Air Force Research Lab (AFRL) and the National Aeronautics and Space Administration (NASA). These two groups have been developing systems for the operation of autonomous vehicles over the past several years, but each system has several critical drawbacks. AFRL’s Unmanned Systems Autonomy Services (UxAS) supports pathfinding for multiple tasks performed by groups of vehicles, but has no formal verification, very little physical flight time, and no concept of collision avoidance. NASA’s Independent Configu

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Hedenström, Linus, and Sebastian Eriksson. "An investigation of detecting potholes with UAV LiDAR and UAV Photogrammetry." Thesis, Högskolan i Gävle, Samhällsbyggnad, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-36836.

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Potholes are caused by erosion and as such always emerging on our roadnetwork. Potholes may not only cause great damages to vehicles, but can alsocause road accidents, which in the worst case are fatal. Today, the detection ofpotholes is usually based on citizen reports or ocular inspection by vehicle,where a loose description of the potholes properties and location can be given.Recent research has explored the possibility of aerial inspection of paved roadswith the new, cost effective, Structure-from-Motion (SfM) technique, whichcan produce 3D point clouds from photogrammetric data. SfM point

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Bengtsson, Magnus. "UCAV vs. Armed UAV - en studie i realiteters inverkan på visioner." Thesis, Försvarshögskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-1399.

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Många försvarsanalytiker och luftmaktsteoretiker har sedan 1990-talet gjort gällande att teknisktavancerade så kallade UCAV farkoster, kan komma att ersätta eller komplettera många av de idagmest avancerade stridsflygplanens uppgifter. Dessa förväntningar har inte infriats. De beväpnadeUAV som nu används i pågående operationer skulle mer kunna liknas vid beväpnade propellerdrivnasegelflygplan och utvecklingen av dessa kan sägas ha varit mer pragmatisk än innovativ.Utvecklingen skulle kunna förklaras som två olika utvecklingsspår, Armed UAV och UCAV. Undersökningenvisar att det är Armed UAV:s e

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Bäckström, Morgan. "Insamling av höjddata med UAV : En jämförelse mellan laserskanning, GNSS och UAV." Thesis, Karlstads universitet, Institutionen för miljö- och livsvetenskaper (from 2013), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-68520.

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Projektet har genomförts i samarbete med Mora kommun som önskat att prova UAV som teknik för att bestämma markhöjder i ett bostads- och grönområde där mark kommer att schaktas vid en marksanering. Projektets syfte har varit att jämföra kvalitet på insamlade markhöjder från UAV med laserskanning och terrestra metoder samt att undersöka hur resultatet påverkas av olika flyghöjder. Med metoderna avvägning och inmätning med satellitteknik mättes sju flygstödspunkter och fyra mätpunkter in. Vid flygstödspunkterna placerades flygsignaler under flygningarna med UAV vilka skedde på 120 respektive 60 m

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Kara, Mohamed Mohamed. "Design and control of UAV systems : a tri-rotor UAV case study." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/design-and-control-of-uav-systems-a-trirotor-uav-case-study(2b492c93-6b35-4317-ba6d-4c5e805d38fd).html.

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The field of UAV systems is an active research area with potential for development and enhancement in various perspectives. This thesis investigates different issues related to the design, operation and control of UAV systems with a focus on the application side of each proposed solution where the implementation side and applicability of the proposed solutions are always considered with high priority. The thesis discusses unmodeled actuator dynamics and their effect on UAV systems when using feedback linearisation to linearize nonlinear models of UAVs. The analysis shows potential risk when im

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Lönnberg, Erika. "Autonom landning med UAV." Thesis, Linköping University, Department of Electrical Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1660.

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<p>På SAAB AB pågår projekt vilka har till syfte att utveckla en obemannad flygfarkost (UAV) som komplement till vanliga flygplan, exempelvis Gripen. För att kunna göra detta behöver SAAB samla kunskaper om UAV:er i allmänhet och detta examensarbete är en del i denna process. </p><p>Detta examensarbete har utförts hos SAAB AB, avdelningen Future Products i Linköping. Syftet var att ta fram styrlagar som möjliggör autonom landning för en UAV. Även en kortare utredning om vilka sensorer som kan komma att behövas ingick i examensarbetet. </p><p>Slutsatserna visar att ytterligare förbättringar beh

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Hedqvist, Emma, and Daniel Jakobsson. "Uppdatering av nationella höjdmodellen över begränsade områden med hjälp av UAS." Thesis, Högskolan i Gävle, Avdelningen för Industriell utveckling, IT och Samhällsbyggnad, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-22073.

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I det här examensarbetet undersöks möjligheten att använda UAS över begränsade områden när den nationella höjdmodellen skapad av Lantmäteriet ska uppdateras. Ämnet var ett förslag från Lantmäteriet och huvudsyftet var att testa om UAS kan användas som komplettering till traditionell flygfotografering. Det blir allt vanligare att använda UAS inom till exempel geomatiken, eftersom det är ett bra verktyg när ett snabbt och effektivt resultat krävs. Lantmäteriet använder flygburen laserskanning vid genereringen av nationella höjdmodellen och den uppdateras med traditionell flygfotografering. Andra

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Pereira, Daniel Filipe Batista. "Estudo geral de viabilidade sobre sistemas de reabastecimento de um UAV-UAS." Master's thesis, Universidade da Beira Interior, 2012. http://hdl.handle.net/10400.6/2015.

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O objectivo da presente dissertação é estudar a viabilidade de um sistema de reabastecimento autónomo para um UAV/UAS. Entender-se-á qual a importância e as vantagens da criação de um sistema com este propósito. Para enquadrar o projecto com o seu objectivo foi essencial conhecer as necessidades que um sistema desta natureza acarreta, quais os equipamentos obrigatórios a ter, bem como estudar a melhor forma de o conseguir, qual a configuração que trará mais vantagens de modo a facilitar todo o processo. O enquadramento legal do projecto também estará presente neste estudo. Em suma, este traba

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Larsson, Alexander, and Olle Oscarsson. "Trädhöjdsbestämning med UAV-fotogrammetri och UAV-laserskanning : En jämförande studie för detektering av riskträd." Thesis, Högskolan i Gävle, Samhällsbyggnad, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-32699.

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UAV (Unmanned Aerial Vehicle) eller drönare används för insamling av geografisk data och fotografering av såväl företag, myndigheter och privatpersoner. Tekniken förenklar insamling av data över stora geografiska områden och kan utnyttjas för kartering, modellering och analysering som volymbestämning. Studien genomfördes med syftet att detektera trädhöjder ur punktmoln genererade med laserskanning och digital fotogrammetri från luften. Vidare undersöktes det vilken metod som gav det mest tillförlitliga resultatet samt om teknikerna var applicerbara för detektering av riskträd. Riskträd innebär

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Wagner, Anthony Julian. "Online Unmanned Ground Vehicle Mission Planning using Active Aerial Vehicle Exploration." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/90785.

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This work presents a framework for the exploration and path planning for a collaborative UAV and UGV system. The system is composed of a UAV with a stereo system for obstacle detection and a UGV with no sensors for obstacle detection. Two exploration algorithms were developed to guide the exploration of the UAV. Both identify frontiers for exploration with the Dijkstra Frontier method using Dijkstra's Algorithm to identify a frontier with unknown space, and the other uses a bi-directional RRT to identify multiple frontiers for selection. The final algorithm developed was for to give the UGV pa

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Martin, Michael. "Global Versus Reactive Navigation for Joint UAV-UGV Missions in a Cluttered Environment." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/7380.

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This thesis presents the coordination of an unmanned, multi-vehicle team that navigates through a congested environment. A novel approach is outlined that enables the control of multiple vehicles based on both computer vision and optimal trajectory algorithms. Various sensors are used to achieve localization in the indoor environment in lieu of global positioning data. Specifically, a Quanser Qball quadrotor is equipped with a downward-looking camera and sonar altimeter, while a Quanser Qbot ground vehicle is outfitted with sonar and infrared range finders. This equipment is complemented by an

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Strano, Bruno. "UAV: Design,Simulation and Control." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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Search and rescue operations in the Alpine area must be carried out as soon as possible to safeguard the lives of those involved in an accident. The use of drones in this area is of great interest due to the effectiveness with which it is possible to carry out SER operations in a short time. The AirBorne project deals with the development and study of drones to be applied in this field, in collaboration with the Aslatech company. This thesis aims to analyze the construction techniques of these drones and analyze the differences between two configurations to select the best components to be inc

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Moëll, Daniel, and Joachim Nordin. "VTOL UAV - A Concept Study." Thesis, Linköping University, Linköping University, Department of Management and Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-15495.

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<p>This thesis deals with the development of a Conceptual Design Tool for unmanned helicopters, so called VTOL UAVs. The goal of the Design Tool is:</p><p>• Quick results</p><p>• Good accuracy</p><p>• Easy to use</p><p>The two first points of the goal are actually more or less dependent on each other. In almost all cases a high accuracy gives a slow calculator and vice versa. In order to fulfill the goal a compromise between calculation accuracy and calculation time needs to be done.</p><p>To make the Design Tool an easy to use program a graphical user interface is used. The graphical user int

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Santos, Diogo Afonso Paulitos dos. "Os UAV na componente terrestre." Master's thesis, Academia Militar, 2009. http://hdl.handle.net/10400.26/11918.

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O trabalho que se apresenta analisa um modelo de implementação de uma Unidade equipada com UAVs que se adeque à Componente Terrestre, estudando a que Unidade deverá estar subordinada uma força de UAVs, que tipologia de UAVs são necessários, que escalões deverão constituir e por fim apresenta-se um projecto da Academia da Força Aérea para a produção de UAVs. Para a elaboração deste trabalho recorreu-se essencialmente à pesquisa bibliográfica, dando primazia a estudos de militares de Forças Armadas nacionais e do estrangeiro, a manuais militares de referência e a vários documentos de dive

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Cakir, Zeynep. "Development Of A Uav Testbed." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613209/index.pdf.

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The development and testing for a UAV testbed to be used in academic research and undergraduate education is proposed in this thesis. Analysis on commercial off-the-shelf UAV systems and autopilots lead to the development of a custom, open-architecture and modular UAV testbed. The main focus is to support research in UAV control field and education of the undergraduate students. The integration and use of commercial-off-the-shelf avionics and air vehicle are described in detail. System performance is examined both in flight and on the ground. Results of the system tests show that the develope

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Drougge, Max. "Spårning av rotorblad på UAV." Thesis, Linköpings universitet, Fluida och mekatroniska system, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-125660.

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Arbetet gick ut på att utvärdera befintliga spårningsmetoder, utforma en procedur för spårning, ge förslag på lämplig utrustning och om tid fanns, testa konceptet. Arbetet skulle också dokumenteras så att krav, design och beslut kan förstås av någon som inte varit delaktig i arbetet. För att minska vibrationerna i UAV behöver rotorbladen spåras, det vill säga, rotorbladen ska befinna sig på samma höjd vid samma position i rotationen. Om spårningen inte är korrekt kan detta leda till oönskade vibrationer som kan vara farliga för UAV:er. I dagsläget används en metod som är väldigt tidskrävande.

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Bechtel, Wayne, Nathaniel Hathaway, Trevor Jerdee, et al. "Roving UAV IED interdiction system." Thesis, Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/6957.

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Approved for public release; distribution is unlimited.<br>In support of the Naval Postgraduate School's Systems Engineering Capstone, a project team was formed from Cohort 311-093A to perform an analysis on the possibility of utilizing Unmanned Air Vehicles (UAVs) in campaign against improvised explosive devices (IEDs). The goal of the project was to determine if a weapon system is feasible to increase capabilities to the warfighter in the fight against the IED threat. The project scope was limited to the UAV classes with local (squad/battalion) control to provide an organic increase in capab

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Sakamoto, Philemon. "UAV mission planning under uncertainty." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/36230.

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Thesis (S.M.)--Massachusetts Institute of Technology, Sloan School of Management, Operations Research Center, 2006.<br>Includes bibliographical references (p. 205-209).<br>With the continued development of high endurance Unmanned Aerial Vehicles (UAV) and Unmanned Combat Aerial Vehicles (UCAV) that are capable of performing autonomous fiunctions across the spectrum of military operations, one can envision a future military in which Air Component Commanders control forces comprised exclusively of unmanned vehicles. In order to properly manage and fully realize the capabilities of this UAV force

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Dotti, Michele. "Stima dell'assetto di un UAV." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/6362/.

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Lo scopo del lavoro è simulare il comportamento di un sistema di misura dell'assetto detto ARS (Attitude Reference System), dove sostanzialmente le misure fornite da giroscopi ed accelerometri, quindi accelerazioni e velocità angolari, vengono elaborate da un filtro osservatore dello stato che permette di ricavare la stima dell'angolo di elevazione Q e dell'angolo di inclinazione f, non misurabili direttamente, e quindi dell'orientamento del sistema rispetto al piano orizzontale.

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Eriksson, Kjell. "HPM-vapen vs. kommersiell UAV." Thesis, Försvarshögskolan, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-6273.

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Detta arbete i militärteknik studerar om högeffektpulsad mikrovågsstrålning kan uppnå verkan mot kommersiella UAV. Analysen genomförs på två olika icke-dödliga HPM-vapen. Data hämtas från ett scenario där vapenverkan innebär hög risk för skada på tredje man. En Försvarsmaktsstudie har konstaterat att Luftvärnsbataljon saknar förmåga att verka mot små UAV.Dagsaktuell kunskap har inhämtats om scenariots miljö samt från forskning och industri genom studiebesök. Inhämtad kunskap har möjliggjort en logisk-matematisk parameterstudie på ett scenario med militärtekniskt perspektiv. Analysens slutsatse

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Martináková, Veronika. "Vyhodnocení snímků pořízených pomocí UAV." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-390231.

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The master´s thesis deals with the application of unmanned aerial vehicle (UAV) in photogrammetry and mapping. The first part describes the UAV that was used for imaging, legislative restrictions resulting from its operations, planning and realization of the flight. The second part of this thesis is focused on processing results, especially on evaluation the accuracy of the results gained by UAV with and without a GNSS module. The data are evaluated in the 3rd accuracy rating class (ČSN 01 3410). The theoretical principles are explained as well. The main aim of the thesis is to demonstrate the

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Quist, Eric Blaine. "UAV Navigation and Radar Odometry." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/4439.

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Prior to the wide deployment of robotic systems, they must be able to navigate autonomously. These systems cannot rely on good weather or daytime navigation and they must also be able to navigate in unknown environments. All of this must take place without human interaction. A majority of modern autonomous systems rely on GPS for position estimation. While GPS solutions are readily available, GPS is often lost and may even be jammed. To this end, a significant amount of research has focused on GPS-denied navigation. Many GPS-denied solutions rely on known environmental features for navigation.

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Ptáček, Ondřej. "Zpracování snímků pořízených pomocí UAV." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-227111.

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This diploma thesis deals with the processing and evaluation of the pictures taken by unmanned aerial vehicles - UAV. The introductory part is devoted to the definition, use, applications and types of UAV especially for photogrammetric purposes. Also the software equipment is described, including a description and examples of several types of possible outcomes. Further the measurements, computational works and process of elaboration in used software programs are described. Achieved outcomes of elaboration are also presented. In conclusion, the overall evaluation and assessment of the results o

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Arnošt, Petr. "Návrh řídicího modulu UAV robotu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230255.

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This diploma thesis is focused on the design of the control software for the unmanned aerial vehicle. Parrot Ar.Drone quadrocopter was a representative of the unmanned aerial vehicle. This thesis describes the way of control and communication with the unmanned aerial vehicle. Based of this information the flight control software for Ar.Drone quadrocopter is created.

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MARDANI, AFSHIN. "Communication-Aware UAV Path Planning." Doctoral thesis, Politecnico di Torino, 2020. http://hdl.handle.net/11583/2796755.

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Munoz, Mauricio F. "Agent-based simulation and analysis of a defensive UAV swarm against an enemy UAV swarm." Thesis, Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/5700.

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Approved for public release; distribution is unlimited.<br>Unmanned systems, including unmanned combat aerial vehicles (UCAVs), are increasingly important in military operations. Given the growth of unmanned systems technology worldwide, these systems may increasingly pose a real threat to U.S. and Allied forces in the near future. This thesis proposes a future concept of employing a defensive UCAV swarm, launched from a friendly sea-based platform. To simulate this defensive swarm system, an agent-based simulation model was developed, and appropriate designs of experiments and statistical

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Kempe, Pontus. "Användning av UAV för datainsamling för 3D-modeller : Undersökning av flyg- och fotograferingsparametrar för UAV." Thesis, Karlstads universitet, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-73511.

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In this thesis, 12 aerial photographs flights were taken over a small building in the municipality of Trosa, with a drone, or the correct name in this case is UAV (Unmanned Aerial Vehicle). Where the purpose was to create 3D models from the aerial images. UAV by model DJI Mavic Pro was used and controlled with smartphone apps like DroneDeploy and Pix4Dmapper. Different values for flight and shooting parameters were tested to see how it affects the quality of the 3D model. The flight and photographing parameters that were investigated were the UAV's flight speed, flight altitude and overlap b

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Lee, Hua. "High-Precision Geolocation Algorithms for UAV and UUV Applications in Navigation and Collision Avoidance." International Foundation for Telemetering, 2008. http://hdl.handle.net/10150/606155.

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ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California<br>UUV homing and docking and UAV collision avoidance are two seemingly separate research topics for different applications. Upon close examination, these two are a pair of dual problems, with interesting correspondences and commonality. In this paper, we present the theoretical analysis, signal processing, and the field experiments of these two algorithms in UAV and UUV applicatio

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Spring, Ted. "Uncertainty comparison of Digital Elevation Models derived from different image file formats." Thesis, Högskolan i Gävle, Avdelningen för Industriell utveckling, IT och Samhällsbyggnad, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-17193.

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Unmanned Aerial Systems (UAS) have become increasingly popular recently for surveying and mapping because of their efficiency in acquiring remotely sensed data in a short amount of time and the low cost associated with them. They are used to generate digital elevation models (DEM) derived from aerial photography for various purposes such as the documentation of cultural heritage sites, archaeological surveying or earthwork volume calculations. This thesis investigates the possible effects different file formats may have on the quality of elevation models. In this thesis, an UAS survey was simu

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Castaneda, Brandown Leon, Edwin Huanachin Cordova, Victor Torres Diaz, and Nique Jose Reyes. "Reduction of non-contributory work of personnel using UAV methodology (Phantom 4 Pro RTK) and conventional Topography with Total Station (Leica TS 06), in road projects." Institute of Electrical and Electronics Engineers Inc, 2020. http://hdl.handle.net/10757/656564.

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El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.<br>At present, topographic surveys in road projects are very important, since it allows us to know the conditions and variable characteristics of the area to be executed. Commonly these surveys are carried out using a total station, high precision equipment, which in turn generates a lot of demand for time in the field and a greater number of personnel for a wide study area. For this reason, another alternative for obtaining terrain data is the us

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Strupplová, Lucie. "Business plan (model lean canvas)." Master's thesis, Vysoká škola ekonomická v Praze, 2014. http://www.nusl.cz/ntk/nusl-261832.

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The well arranged and instructivee business plan is the basic part of every business project.. Currently is very often used the lean canvas model of the business plan. This model shows us very istructively all the factors influencing the project realisation. The dissertation is divided into the two basic parts. In the thoretical were compared the essential forms of the business plan with their differences. The practical part consists of creating the lean canvas model for the progressive company using the UAV and the MAIA application, monitoring the flight of the UAV. The economic data were ana

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Frantz, Natalie R. "Swarm intelligence for autonomous UAV control." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Jun%5FFrantz.pdf.

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Barretta, Salvatore. "UAV based Narrowband - Internet of things." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/22761/.

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in this thesis we simulated via Java and Matlab environments a scenario in which a single drone is exploited to carry the NB-IoT base station over an a-priori known area. More specifically, we examined the performance of a drone flying over a area where IoT devices are grouped in clusters and trying to serve as many nodes as possible, with the trajectory solved exploiting the well-known solution of the Travel Salesman Problem (TSP), through which the UAV, that in this study we consider starting from the center of a cluster, finds the minimum path to subsequently reach the center of all the oth

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Zamanzadeh, Amin. "MIMO system for Skeldar UAV System." Thesis, Linköping University, Communication Systems, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-16928.

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<p>This thesis examines the possibility of installing a wireless communication system based on multiple antennas, on an Unmanned Aerial Vehicle (UAV). The communication system is based on MIMO technology. This technology uses the fact that we can make use of several antennas at the transmitter and the receiver to create independent signal path which in turn can increase the roboustness of the communication link. Advantages and disadvantages of this new system arediscussed. However, this report concludes that the benefits of MIMO outweights the disadvantages.</p><p>Furthermore a simulation envi

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Rugarn, Jonatan. "Rapid Development of Realistic UAV Simulations." Thesis, Linköping University, Department of Computer and Information Science, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-17099.

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<p>Instrument Control Sweden (ICS) is a software company that develops NATO STANAG 4586 compatible ground station software for control of unmanned systems such as unmanned aerial vehicles (UAVs). To perform testing and demonstration of the ground station software ICS needs a realistic UAV simulator that implements the STANAG 4586 protocol. This thesis studies what methods are best suited for the rapid development of such a simulator.</p><p>One goal with the project was to examine what existing flight simulator systems and flight dynamics models can be used to rapidly develop a UAV simulator. A

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Kjenstad, Sindre Kløw. "Stabilized Camera for a Nano-UAV." Thesis, Norwegian University of Science and Technology, Department of Engineering Cybernetics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9116.

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<p>This thesis describes the design and creation of a system for stabilizing a camera mounted on a nano-UAV. A prototype voice coil actuator was produced, and Hall effect sensors were used to measure the angle of the actuator. The actuator and sensor is used to counter vibrations in the UAV. A circuit board used to control the actuator was designed and created, and a controller for the system was implemented. Testing showed that the controller was able to counter vibrations, but the bandwidth was low, only a few hertz. Wires connected to the actuator and sensor had significant impact on the

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Hankoylu, Merve. "Landing Autopilot Design For An Uav." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613049/index.pdf.

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In this thesis, a landing autopilot for an UAV (IAI Pioneer RQ-2) is designed based on a nonlinear MATLAB model implemented with MATLAB/Simulink. In order to control the movement of the UAV at lateral and longitudinal axes, a speed, an altitude, a heading angle (direction) and a yaw rate controllers are designed. Controller design procedure is started with determination of different trim points of the aircraft. Next, the corresponding initial states and initial inputs are obtained. The model is linearized about those trim points and the gain values are determined. The resultant gain scheduled

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