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Dissertations / Theses on the topic 'Unmaned Aerial Vehicle'

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Published: 2 June 2025

Last updated: 31 July 2025

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1

Toazza, Denny Antonio, and Tae Hyun Kim. "Navigation Control of an Unmanned Aerial Vehicle (UAV)." Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-3730.

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<p>The thesis covers a new navigation algorithm for UAV to fly through several given GPS coordinates without any human interference. The UAV first gets its current position from GPS receiver via Bluetooth connection with the navigator computer. With this GPS point, it draws an optimal trajectory to next destination. During the flight, the navigator computer issues the information about which direction to turn and how much to turn. This information will be used to steer the airplane servos.</p><p>The algorithm is programmed in Java LeJOS. It uses built-in Java classes about GPS and Bluetooth. T

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2

Dowd, Garrett E. "Improving Autonomous Vehicle Safety using Communicationsand Unmanned Aerial Vehicles." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1574861007798385.

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3

Sargeant, Nick. "Unmanned aerial vehicle payload development for aerial survey." Thesis, Sargeant, Nick (2012) Unmanned aerial vehicle payload development for aerial survey. Other thesis, Murdoch University, 2012. https://researchrepository.murdoch.edu.au/id/eprint/14812/.

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Aerial imaging is key part of remote sensing and surveying, however traditionalacquisition methods such as satellite imagery and manned aircraft suffer from some limitations, namely, “high capital, operational and personnel costs, slow and weather-dependent data collection, restricted manoeuvrability, limited availability, limited flying time, low ground resolution”[1].Unmanned Aerial Vehicle have gained increasing attention in recent years as technological advancements such as sensor minimization have made them a viable alternative for aerial photogrammetry applications. This report outlin

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4

Foster, Tyler Michael. "Dynamic Stability and Handling Qualities of Small Unmanned-Aerial-Vehicles UNMANNED-AERIAL-VEHICLES." BYU ScholarsArchive, 2004. https://scholarsarchive.byu.edu/etd/219.

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General aircraft dynamic stability theory was used to predict the natural frequencies, damping ratios and time constants of the dynamic modes for three specific small UAVs with wingspans on the scale from 0.6 meters to 1.2 meters. Using USAF DatCom methods, a spreadsheet program for predicting the dynamic stability and handling qualities of small UAVs was created for use in the design stage of new small UAV concept development. This program was verified by inputting data for a Cessna-182, and by then comparing the program output with that of a similar program developed by DAR Corporation. Pred

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5

Hauss, Jean-Marc C. (Jean-Marc Claude) 1975. "Design of a unmanned aerial vehicle." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/50380.

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6

DeJong, Paul. "COALITION FORMATION IN MULTI-AGENT UAV SYSTEMS." Master's thesis, University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2712.

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Coalitions are collections of agents that join together to solve a common problem that either cannot be solved individually or can be solved more efficiently as a group. Each individual agent has capabilities that can benefit the group when working together as a coalition. Typically, individual capabilities are joined together in an additive way when forming a coalition. This work will introduce a new operator that is used when combining capabilities, and suggest that the behavior of the operator is contextual, depending on the nature of the capability itself. This work considers six different

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7

Guerra, Elia. "Unmanned Aerial Vehicle (UAV) per applicazioni geomatiche." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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La tesi tratta i dispositivi UAV, in particolare i droni di peso inferiore ai 25 kg, facendo riferimento alla normativa ENAC. Vengono descritte le applicazioni pratiche in campo civile, concentrandosi sulle geomatiche, delineando i principali sensori esterni utilizzati come Camere digitali, termiche e multispettrali.

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8

Allegretti, Marcello. "Unmanned Aerial Vehicle: tecnologie e prospettive future." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/11979/.

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Partendo dalla definizione di UAV e UAS, arrivando a quella di drone, nella tesi saranno definiti i termini precedenti, ossia un sistema aereo senza pilota a bordo, la nascita del termine drone e le tendenze attuali. Dopo una precisa classificazione nelle quattro categorie principali (droni per hobbisti, commerciali e militari di me- dia grandezza, militari specifici di grandi dimensioni e stealth da combattimento) saranno descritti gli ambiti di utilizzo: da un lato quello militare e della sicurezza, dall’altro quello civile e scientifico. I capitoli centrali della tesi saranno il cuore dell’

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9

Valente, Evandro Gurgel do Amaral. "Composite construction of an unmanned aerial vehicle." College Park, Md. : University of Maryland, 2006. http://hdl.handle.net/1903/3930.

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Thesis (M.S.) -- University of Maryland, College Park, 2006.<br>Thesis research directed by: Dept. of Aerospace Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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10

Susuz, Umut. "Aeroelastic Analysis Of An Unmanned Aerial Vehicle." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609225/index.pdf.

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In this thesis aeroelastic analysis of a typical Unmanned Aerial Vehicle (UAV) using MSC&reg<br>FlightLoads and Dynamics module and MSC&reg<br>NASTRAN Aero 1 solver was performed. The analyses were carried out at sea level, 1000m, 2000m and 4000m altitudes for Mach Numbers M=0.2, 0.4 and 0.6 for the full model of the UAV. The flutter characteristics of the UAV for different flight conditions were obtained and presented. The effect of altitude on flutter characteristics has been examined and compared with the theoretical and experimental trends in the literature. Also the divergence characteris

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11

Tell, Fredrik. "CCUAV : Cloud Center for Unmanned Aerial Vehicle." Thesis, Högskolan i Halmstad, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-36304.

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Projektets syfte är att bryta kopplingen mellan en specifik användare och drönare. Målet med projektet är att flera användare ska kunna hantera flera drönare från en central. En länk mellan en internetbaserad plattform vid namn Thingworx och en drönare med en inbyggd styrenhet, som kallas Pixhawk, sammankopplas med mikrodatorn Raspberry Pi 3. Sjöräddningssällskapet i Sverige önskar ett interface där flera av deras drönare med den inbyggda styrenheten kan hanteras och se dess position och videoström. PDSVisions mål är att skapa en demonstrator i en nyutvecklad plattform som förenklar uppkopplin

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12

Waugh, Edward Michael. "An unmanned aerial vehicle for oceanographic applications." Thesis, University of Southampton, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.538988.

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13

Watkiss, Eric John. "Flight dynamics of an unmanned aerial vehicle." Thesis, Monterey, California. Naval Postgraduate School, 1994. http://hdl.handle.net/10945/28222.

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Approved for public release; distribution is unlimited.<br>Moments of inertia were experimentally determined and longitudinal and lateral/directional static and dynamic stability and control derivatives were estimated for a fixed wing Unmanned Air Vehicle (UAV). Dynamic responses to various inputs were predicted based upon the estimated derivatives. A divergent spiral mode was revealed, but no particularly hazardous dynamics were predicted. The aircraft was then instrumented with an airspeed indicator, which when combined with the ability to determine elevator deflection through trim setting o

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14

Lee, Matthew, Daniel Lierz, and Jerome Younger. "Video Tracking System for Unmanned Aerial Vehicle." International Foundation for Telemetering, 2012. http://hdl.handle.net/10150/581754.

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ITC/USA 2012 Conference Proceedings / The Forty-Eighth Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2012 / Town and Country Resort & Convention Center, San Diego, California<br>Surveillance and tracking using unmanned aerial vehicles (UAVs) is a growing field and to visually track an object independent of a flight path requires a video transmission and control system. Applications utilizing UAVs to track a stationary or moving target are plentiful, from military to local law enforcement; every application introduces an alternative to placing a human in

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15

Bradley, Justin, and Breton Prall. "AN UNMANNED AERIAL VEHICLE PROJECT FOR UNDERGRADUATES." International Foundation for Telemetering, 2006. http://hdl.handle.net/10150/604143.

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ITC/USA 2006 Conference Proceedings / The Forty-Second Annual International Telemetering Conference and Technical Exhibition / October 23-26, 2006 / Town and Country Resort & Convention Center, San Diego, California<br>Brigham Young University recently introduced a project for undergraduates in which a miniature unmanned aerial vehicle system is constructed. The system is capable of autonomous flight, takeoff, landing, and navigation through a planned path. In addition, through the use of video and telemetry collected by the vehicle, accurate geolocation of specified targets is performed. T

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Ward, Paul A. "Coordinated search with unmanned aerial vehicle teams." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:37407b90-51e7-4814-936c-4817ea0c711f.

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Advances in mobile robot technology allow an increasing variety of applications to be imagined, including: search and rescue, exploration of unknown areas and working with hazardous materials. State of the art robots are able to behave autonomously and without direct human control, using on-board devices to perceive, navigate and reason about the world. Unmanned Aerial Vehicles (UAVs) are particularly well suited to performing advanced sensing tasks by moving rapidly through the environment irrespective of the terrain. Deploying groups of mobile robots offers advantages, such as robustness to

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17

Yu, Pengfei. "Aerial Perching and Grasping with Micro Unmanned Aerial Vehicles." Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/24493.

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This thesis aims to is to explore aerial perching and grasping capability on a quadrotor type UAV (Unmanned Aerial Vehicle) to pave the way for the future fully intelligent UAVs which are able to interact with the environment like a bird. Aerial perching enables a quadrotor to have a "perch and stare" capability, which is a promising solution for the endurance problem of a quadrotor-type UAV. Another benefit of aerial perching is that the landing location could not be limited to flat surfaces which are required by the underactuated nature of the quadrotor. Aerial grasping enables a quadrotor

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18

Ingebretsen, Thomas. "System Identification of Unmanned Aerial Vehicles." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for fysikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-16776.

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The least squares method has been applied to estimate parameters inan aerodynamic model of a simulated aircraft, using data that can beexpected to available from sensors on an Unmanned Aerial Vehicle. Acombination of two non-linear state observers have been implemented toestimate wind data such as angle of attack, sideslip and dynamic pressure.Simulations have confirmed that the observers are able to estimete thewind data using noisy sensor measurements. Parameter estimation havebeen demonstrated with both measured and estimated wind data.

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19

Johansen, Ingrid Hagen. "Autopilot Design for Unmanned Aerial Vehicles." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for teknisk kybernetikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18458.

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This thesis will present a design of a guidance and control system to use on aircrafts, primarily on UAVs. One control method for heading control and two for pitch and altitude control will be investigated. The control methods are Proportional-Integral-Derivative (PID) and sliding mode control. PID will be tested on both heading and pitch and altitude control, while sliding mode will only be applied to pitch and altitude. There will be presented a path-following method, Line of Sight, for heading guidance and a kinematic controller for altitude reference. The presented methods are implemented

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Carnduff, S. D. "System identification of unmanned aerial vehicles." Thesis, Cranfield University, 2008. http://dspace.lib.cranfield.ac.uk/handle/1826/7583.

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The aim of this research is to examine aspects of system identification for unmanned aerial vehicles (UAVs). The process for aircraft in general can be broken down into a number of steps, including manoeuvre design, instrumentation requirements, parameter estimation, model structure determination and data compatibility analysis. Each of these steps is reviewed and potential issues that could be encountered when analysing UAV data are identified. Problems which may be of concern include lack of space within the airframe to mount sensors and a greater susceptibility to the effects of turbulence

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21

Yu, Kevin Li. "Coverage Planning for Unmanned Aerial Vehicles." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/103705.

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This dissertation investigates how to plan paths for Unmanned Aerial Vehicles (UAV) for the task of covering an environment. Three increasingly complex coverage problems based on the environment that needs to be covered are studied. The dissertation starts with a 2D point coverage problem where the UAV needs to visit a set of sites on the ground plane by flying on a fixed altitude plane parallel to the ground. The UAV has limited battery capacity which may make it infeasible to visit all the points. A novel symbiotic UAV and Unmanned Ground Vehicle (UGV) system where the UGV acts as a mobile r

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Bessemer, William G. "Transitioning to Unmanned Combat Aerial Vehicles." Thesis, Monterey, California. Naval Postgraduate School, 2006. http://hdl.handle.net/10945/2666.

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The Air Force is currently developing Unmanned Combat Aerial Vehicles (UCAV). The UCAV is projected for initial testing by 2010. However, after reviewing the Office of Secretary of Defense's Unmanned Aircraft Systems Roadmap for 2005 2030<br>obtaining squadrons of UCAVs will cost billions of dollars and require decades to produce. The United States cannot afford to wait decades for unmanned weapons. Technology is spreading fast. Third world countries without stable economies and non-state actors are able to obtain/develop sophisticated weapons that are capable of destroying tactical aircraft.

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23

Larkan, Jessica. "Centralised control of unmanned aerial vehicles." Thesis, Larkan, Jessica (2018) Centralised control of unmanned aerial vehicles. Honours thesis, Murdoch University, 2018. https://researchrepository.murdoch.edu.au/id/eprint/44790/.

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This report presents the supporting research, methods, and outcome of an endeavour to develop a centralised control system using NI Labview for unmanned aerial vehicles developed by Bitcraze. It outlines the structure of the work, the product, and its capabilities and significance as a contribution to the body of knowledge surrounding drone technologies. In order to present precedent for the project and potential avenues of work, the current literature detailing similar applications and systems are summarised. These sections highlight preferable potential design choices and constraints, wh

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Anderson, Robert Blake. "Routing and Control of Unmanned Aerial Vehicles for Performing Contact-Based Tasks." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/103201.

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In this dissertation, two main topics are explored, the vehicle routing problem (VRP) and model reference adaptive control (MRAC) for unknown nonlinear systems. The VRP and its extension, the split delivery VRP (SVRP), are analyzed to determine the effects of using two different objective functions, the total cost objective, and the last delivery objective. A worst-case analysis suggests that using the SVRP can improve total costs by as much as a factor of 2 and the last delivery by a factor that scales with the number of vehicles over the classical VRP. To test the theoretical worst-cases a

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Boulekchour, M. "Robust convex optimisation techniques for autonomous vehicle vision-based navigation." Thesis, Cranfield University, 2015. http://dspace.lib.cranfield.ac.uk/handle/1826/9412.

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This thesis investigates new convex optimisation techniques for motion and pose estimation. Numerous computer vision problems can be formulated as optimisation problems. These optimisation problems are generally solved via linear techniques using the singular value decomposition or iterative methods under an L2 norm minimisation. Linear techniques have the advantage of offering a closed-form solution that is simple to implement. The quantity being minimised is, however, not geometrically or statistically meaningful. Conversely, L2 algorithms rely on iterative estimation, where a cost function

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Watson, Mark T. "Vision guidance controller for an Unmanned Aerial Vehicle." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1998. http://handle.dtic.mil/100.2/ADA359702.

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Thesis (M.S. in Aeronautical Engineering) Naval Postgraduate School, December 1998.<br>"December 1998." Thesis advisor(s): Isaac I. Kaminer. Includes bibliographical references (p. 77). Also available online.

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Sakarya, Arzu. "Multidisciplinary Design Of An Unmanned Aerial Vehicle Wing." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613606/index.pdf.

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In this thesis, the structural design, structural analysis and producibility analysis of an unmanned aerial vehicle wing were performed. Three different wing models, made of different materials, were designed. The wings were aluminum wing model and composite wing models<br>made of prepreg and wet lay-up. All wings have the same aerodynamic geometry and structural configuration under the same flight conditions. The structural designs of three wings were done by using Unigraphics NX. The finite element modeling of the wings were built by using MSC Patran package program. After the application of

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Söderman, Johan. "High Level Control for an Unmanned Aerial Vehicle." Thesis, Uppsala universitet, Signaler och System, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-156043.

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This thesis work was undertaken to develop a new high level command for an unmanned aerial vehicle. The command is assumed to make the UAV follow a reference position that is placed on a certain distance to an object. At the same time the UAV is assumed to move more smoothly than the reference position and the UAV is allowed to follow the reference position with margin. The problem was solved with an automatic control system that takes the reference position as input signal and has a fictitious position as output signal. The fictitious position moves smoothly inside the margin and irregular be

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Hammar, Marcus. "Controller Design for an Unmanned Reconnaissance Aerial Vehicle." Thesis, KTH, Reglerteknik, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-107514.

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The overall objective with this thesis is to evaluate a method for designing nonlinear controllers in aircrafts with concern in robustness against modelling insecurities and also to minimize the design effort. The later objective is of great importance since there exists, in the industry, an ambition to automatize the design for as far extend as possible. The nonlinear method, State Dependent Riccati Equation (SDRE), used in this thesis is a nonlinear version of classic LQ design and both are evaluated and compared for a few flying conditions. Also another nonlinear control method, Two Timesca

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Rao, Srinivas K. Driessen Brian. "Protective shroud for an autonomous unmanned aerial vehicle." Diss., A link to full text of this thesis in SOAR, 2006. http://soar.wichita.edu/dspace/handle/10057/677.

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Thesis (M.S.)--Wichita State University, College of Engineering, Dept. Mechanical of Engineering.<br>"December 2006." Title from PDF title page (viewed on Nov. 4, 2007). Thesis adviser: Brian Driessen. Includes bibliographic references (leaves 63-65).

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Hammerseth, Vegard B. "Autonomous Unmanned Aerial Vehicle In Search And Rescue." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for teknisk kybernetikk, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-22880.

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This report presents a way of using autonomous drones to enhance search and rescue operations and takes the first steps in bringing the system to life. By using autonomous drones, less experience is required by the rescue personnel and drone specialists become excessive in this matter. Due to autonomy a drone can operate outside a valid radio link. Hence, when signal is lost, the craft can continue to search, buffer the information and send it when the link becomes active. By creating affordable drones the threshold decreases for deploying a unit in bad weather or other missions where the feed

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Dono, Thomas F. "Optimized Landing of Autonomous Unmanned Aerial Vehicle Swarms." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/7331.

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Approved for public release; distribution is unlimited.<br>This research explores a future concept requiring the efficient and safe, landing and recovery of a swarm of unmanned aerial vehicles (UAVs). The presented work involves the use of an overarching (centralized) airspace optimization model, formulated analytically as a network-based model with side constraints describing a time-expanded network model of the terminal airspace in which the UAVs navigate to one or more (possibly moving) landing zones. This model generates optimal paths in a centralized manner such that the UAVs are properly

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Kersop, Stefanus Jacobus. "Short range reconnaissance unmanned aerial vehicle / S.J. Kersop." Thesis, North-West University, 2009. http://hdl.handle.net/10394/9171.

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Unmanned aerial vehicles (UAVs) have been used increasingly over the past few years. Special Forces of various countries utilise these systems successfully in war zones such as Afghanistan. The biggest advantage is rapid information gathering without endangering human lives. The South African National Defence Force (SANDF) also identified the need for local short range aerial reconnaissance and information gathering. A detailed literature survey identified various international players involved in the development of small hand-launch UAV systems. Unfortunately, these overseas systems are too e

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Dalbakk, Lars-Eirik. "Antenna System for Tracking of Unmanned Aerial Vehicle." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elektronikk og telekommunikasjon, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-26837.

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Target tracking is a critical part of any mobile communication system with a directive receiver antenna. Some popular tracking methods use the detected phase difference between signals received by several antennas to find the signals direction of arrival. The measured direction of arrival is used to adjust the directive antennas radiation pattern towards the transmitter. Thus, the radio link between the receiver and the transmitter is kept optimal at all times.This thesis presents the design and implementation of a tracking system, that is based on the phase difference between a QP

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Serrano, Nathan E. "Autonomous quadrotor unmanned aerial vehicle for culvert inspection." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/67752.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 69).<br>This document presents work done to lay the foundation for an Unmanned Aerial Vehicle (UAV) system for inspecting culverts. By expanding upon prior progress creating an autonomous indoor quadrotor, many basic hardware and software issues are solved. The main new functionality needed for the culvert inspection task was to utilize the Global Positioning System (GPS) available outdoors to ma

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Pereira, Coutinho Walton. "Unmanned Aerial Vehicle routing and trajectory optimisation problems." Thesis, University of Southampton, 2018. https://eprints.soton.ac.uk/426341/.

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In recent years, employing Unmanned Aerial Vehicles (UAV) to collect data and making measurements has gained popularity. Often, the use of UAVs allows for a reduction in costs and improvements of other performance criteria. The academic routing community has acknowledged the interest of companies and organisations in adopting UAVs in their operations. However, constraints due to the flight dynamics of UAVs have often been neglected. Finding feasible trajectories for UAVs in a routing problem is a complex task, but it is necessary to ensure the feasibility of the routes. In this thesis we intro

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Valente, João Ricardo Pereira. "Autonomous behaviors for an unmanned mini-aerial vehicle." Master's thesis, FCT - UNL, 2008. http://hdl.handle.net/10362/1869.

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This thesis aims at addressing the development of autonomous behaviors, for search and exploration with a mini-UAV (Unmanned Aerial Vehicle), or also called MAV (Mini Aerial Vehicle) prototype, in order to gather information in rescue scenarios. The platform used in this work is a four rotor helicopter, known as quad-rotor from the German company Ascending Technologies GmbH, which is later assembled with a on-board processing unit (i.e. a tiny light weight computer) and a on-board sensor suite (i.e. 2D-LIDAR and Ultrasonic Sonar). This work can be divided into two phases. In the first phase

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Wikman, Dennis, and Oscar Andersson. "Propulsion system for a small unmanned aerial vehicle." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-276078.

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For unmanned aerial vehicles there is a wide variety of selection for propulsion systems. Depending on the specific choice of system, the characteristics of the aircraft vary significantly. The choice is also dependent on the size of the UAV itself as well as desired performance and utility. Propulsion systems have made significant advancements over the last decades in the UAV sector. The Skywalker X8 is a popular small UAV and most commonly flown electrically. What propulsion would then be fitting for the originally 2 m wingspan Skywalker X8 if its size in dimensions were doubled. This study

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Åkesson, Elsa, Maximilian Kempe, Oskar Nordlander, and Rosa Sandén. "Unmanned Aerial Vehicle Powered by Hybrid Propulsion System." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277115.

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I samband med den globala uppvärmningen ökar efterfrågan för rena och förnybara bränslen alltmer i dagens samhälle. Eftersom flygindustrin idag är ansvarig för samma mängd växthusgaser som all motortrafik i Sverige, skulle ett byte till en avgasfri energikälla för flygfarkoster vara ett stort framsteg. Därför har projektet genom modellering framtagit ett hybridsystem av ett batteri och en bränslecell och undersökt hur kombinationen av olika storlekar på dem presterar i en driftcykel. Då batterier har hög specifik effekt men är tunga, kompletteras de med fördel av bränsleceller, som är lättvikt

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Wilkman, Dennis, and Oscar Andersson. "Propulsion system for a small unmanned aerial vehicle." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-276078.

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For unmanned aerial vehicles there is a wide variety of selection for propulsion systems. Depending on the specific choice of system, the characteristics of the aircraft vary significantly. The choice is also dependent on the size of the UAV itself as well as desired performance and utility. Propulsion systems have made significant advancements over the last decades in the UAV sector. The Skywalker X8 is a popular small UAV and most commonly flown electrically. What propulsion would then be fitting for the originally 2 m wingspan Skywalker X8 if its size in dimensions were doubled. This study

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Dingus, Benjamin Ross. "Development of an Autonomous Unmanned Aerial Vehicle for Aerobiological Sampling." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/33119.

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The ability to detect, monitor, and forecast the movement of airborne plant pathogens in agricultural ecosystems is essential for developing rational approaches to managing these habitats. We developed an autonomous (self-controlling) unmanned aerial vehicle (UAV) platform for aerobiological sampling tens to hundreds of meters above agricultural fields. Autonomous UAVs have the potential to extend the range of aerobiological sampling, improve positional accuracy of sampling paths, and enable coordinated flight with multiple aircraft at different altitudes. We equipped a Senior Telemaster m

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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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Bess, Philip K. "Spread spectrum applications in unmanned aerial vehicles." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1994. http://handle.dtic.mil/100.2/ADA281035.

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Heath, Garrett D. "Simulation analysis of Unmanned Aerial Vehicles (UAV)." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1999. http://handle.dtic.mil/100.2/ADA368265.

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Wagner, Thomas William Jr. "Digital autoland system for unmanned aerial vehicles." Texas A&M University, 2003. http://hdl.handle.net/1969.1/5960.

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Autoland controllers are prevalent for both large and small/micro unmanned aerial vehicles, but very few are available for medium sized unmanned aerial vehicles. These vehicles tend to have limited sensors and instrumentation, yet must possess good performance in the presence of modeling uncertainties, and exogenous inputs such as turbulence. Quantitative Feedback Theory is an attractive control methodology for this application, since it provides good performance and robustness for systems with structured model uncertainties. It has been successfully applied to many aircraft problems, but not

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AVCİ, CEYLAN. "Unmanned Aerial Vehicles SensingMissions Specification using SensorML." Thesis, Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-17500.

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SensorML is a programming language which an user can write any type of sensorspecification and group of sensors as a database in XML form. This thesis is written with thetarget of showing SensorML specifications and clarifying it with an example of type of UAVand its camera sensors. Four type of UAV platforms are used as examples:- a helicopter- a blimp- a quad copter- and a aircraftand five types of camera sensors are given as examples of sensors that equip the UAVplatforms:- low light- HD camera- thermal camera- and micro analog cameraThese UAV platforms and sensors are combined to represent

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Noonan, Andrea L. "Flight plan generation for unmanned aerial vehicles." Thesis, Manhattan, Kan. : Kansas State University, 2007. http://hdl.handle.net/2097/385.

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Bayraktar, Selcuk. "Aggressive landing maneuvers for unmanned aerial vehicles." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35581.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2006.<br>Includes bibliographical references (p. 69-70).<br>VTOL (Vertical Take Off and Landing) vehicle landing is considered to be a critically difficult task for both land, marine, and urban operations. This thesis describes one possible control approach to enable landing of unmanned aircraft systems at all attitudes, including against walls and ceilings as a way to considerably enhance the operational capability of these vehicles. The features of the research include a novel approach to trajectory

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Dinevik, Vilhelm, and Paula Carbo. "Motion Planning and Controlof Unmanned Aerial Vehicles." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230198.

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The core of this project focuses on how to makeaerial vehicles fly autonomously from an initial position to agoal. This is done by making a mathematical model for the UAV,a brief study of the sensors needed to estimate the UAVs state,then designing an LQR controller for the trajectory trackingand finally using an artificial potential field function for thenavigation. The mathematical model is done by studying thekinematics and dynamics for a single UAV, it is then linearisedand the system’s observability and controllability are checked todevelop the LQR. We conduct computer simulations to test

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Han, Chunyang. "Robust Control of Teleoperated Unmanned Aerial Vehicles." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-278212.

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In this thesis, we first use the reachability theory to develop algorithms for state predictionunder delayed state or output measurements. We next develop control strategies forcollision avoidance and trajectory tracking of UAVs based on the devised algorithms andthe model predictive control theory. Finally, simulations results for collision avoidanceand trajectory tracking problems are presented, for different communication delays,using a UAV model with 6 degrees of freedom.<br>I denna avhandling använder vi först tillgänglighetsteorin för att utveckla algoritmerför tillståndsförutsägelse und

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