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Dissertations / Theses on the topic 'UAH'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Варич, Ю. М. "Незалежна гривня – шлях до подолання інфляції". Thesis, Українська академія банківської справи Національного банку України, 2008. http://essuir.sumdu.edu.ua/handle/123456789/61826.

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З моменту набуття незалежності Україна зробила великий крок вперед та створила економіку, що діє за ринковими принципами. З 2000 року українська економіка зросла в середньому на 7,4 %, заро- бітна платня стабільно зростає, рівень безробіття падає, державний борг знаходиться в межах норми. Мета цієї роботи – акцентувати увагу на можливому розгортанні процесу валютної кризи подібно до азійської 1998 року.

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2

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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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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4

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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5

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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6

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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7

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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8

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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9

Correia, António. "A Evolução da Geodesia e sua importância no meio militar." Master's thesis, Academia Militar. Direção de Ensino, 2011. http://hdl.handle.net/10400.26/7222.

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Este Trabalho de Investigação Aplicada (TIA) está relacionado com a Geodesia, sendo o tema delimitado à sua influência nos Unmanned Aerial Systems (UAS) da Bateria de Aquisição de Objectivos (BAO). A Geodesia enquanto ciência, estuda as dimensões e a forma da terra tendo para tal um conjunto de metodologias e técnicas que têm vindo a evoluir ao longo dos tempos, fornecendo para tal, diversos produtos importantes no apoio à decisão militar. Actualmente os sistemas de navegação por satélite são um elemento fundamental na condução de operações militares, fornecen

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Strömberg, Sebastian, and Oscar Eriksson. "Konstruering och implementation av kollisionsvarningsljus för UAS." Thesis, Linköpings universitet, Institutionen för systemteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-124380.

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Syftet med detta examensarbete har varit att konstruera ett kollisionsvarningsljus till en drönare åt Etteplan Industry AB. Företaget använder denna för att utföra tjänster åt olika företag så som flygfotografering och 3D-modelleringar.Svårigheterna i detta arbete har legat i bristen på plats och vikt samt att hålla effektförbrukningen så låg som möjligt för att inte påverka flygtiden för mycket. Samtidigt finns en hel del krav från luftfartsorgan på hur ett kollisionsvarningsljus ska konstrueras. Mycket fokus har legat på att testa och välja ut de LEDs med så mycket lumens/watt som möjligt ut

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11

Padró, Garcia Joan-Cristian. "Millora del tractament de les imatges captades pels satèl·lits Landsat-8 i Sentinel-2 mitjançant espectroradiometria de camp i sensors embarcats en Vehicles Aeris no Tripulats (UAV)." Doctoral thesis, Universitat Autònoma de Barcelona, 2019. http://hdl.handle.net/10803/667180.

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La irrupció tecnològica dels Vehicles Aeris no Tripulats (UAV o drons) com a noves plataformes de teledetecció, està fent evolucionar la Geografia cap a una nova escala d’observació de la Terra. Mitjançant diferents instruments de captació de dades (e.g. satèl·lits, aeronaus), actualment es poden monitoritzar i analitzar quantitativament diversos fenòmens que afecten la superfície terrestre a diferents escales, així com els seus canvis. Convencionalment, la validesa de les mesures de teledetecció satel·litària es comprova mitjançant el seu ajust respecte de mesures in-situ captades amb espectr

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Lindström, Simon. "Utveckling av metoder för att säkerställa kvaliteten på höjddata insamlad med UAV : Fastställande av tillvägagångssätt vid luftburen datainsamling." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-84722.

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Företaget Team Exact levererar mätningstekniska tjänster, där den främsta verksamheten är riktad mot byggnads- och markindustrin. Företaget använder UAS och levererar tjänster till kunder med ortofoto och DEM som kan användas till kartläggning, volymberäkningar och planering. Team Exact använder konsultföretagets SkyMap’s webbaserade plattform i fotogrammetrisk bearbetning av UAV genererade flygbilder. DEM behöver uppnå HMK-standardnivå 3 för att användas som underlag till bygghandlingar. För att uppnå HMK-standardnivå 3 så krävs det en lägesosäkerhet på 0,02–0,05 m/ 0,03–0,07 m (plan/höjd). T

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Stensson, Lily. "Spatial Accuracy in Orthophoto produced using UAV Photographic Images." Thesis, Karlstads universitet, Fakulteten för samhälls- och livsvetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-46245.

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The popularity of using UAV in image-taking for the production of 3D models and orthophotos has increased over time. Karlskoga Municipality has recently acquired an UAV to produce their own 3D models and orthophotos. This project paper aims to study the geospatial accuracy of the orthophotos and DEM files produced using the images taken with their UAV. The flight takes only a few minutes but a considerable time is spent in the production processes. Difficulty is experienced in determining the right center point for most GCPs. Produced orthophotos in the software Photoscan have a resolution fro

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14

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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15

Nevins, Robert Pardy. "Georeferencing Unmanned Aerial Systems Imagery via Registration with Geobrowser Reference Imagery." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1500378454106286.

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Tolman, Skyler. "Multiple Agent Target Tracking in GPS-Denied Environments." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/9047.

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Unmanned aerial systems (UAS) are effective for surveillance and monitoring, but struggle with persistent, long-term tracking, especially without GPS, due to limited flight time. Persistent tracking can be accomplished using multiple vehicles if one vehicle can effectively hand off the tracking information to another replacement vehicle. This work presents a solution to the moving-target handoff problem in the absence of GPS. The proposed solution (a) a nonlinear complementary filter for self-pose estimation using only an IMU, (b) a particle filter for relative pose estimation between UAS us

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17

Ng, Jennifer. "Investigation of a low-cost coaxial helicopter testbed for planetary remote sensing." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/228525/1/Jennifer_Ng_Thesis.pdf.

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This project was a step forward in designing and testing a low-cost coaxial UAV with an optical flow sensor. The research is based on the Mars Helicopter Ingenuity used in planetary remote sensing. The thesis investigated how accurately the UAV can maintain altitude using VICON, LIDAR, and the optical flow sensor.

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Halldén, Max. "Polismyndighetens kamerabevakning med drönare i brådskande fall." Thesis, Uppsala universitet, Juridiska institutionen, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-413049.

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19

Charvat, Robert C. "Surveillance for Intelligent Emergency Response Robotic Aircraft (SIERRA Project)." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1337888115.

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Coombes, Matthew. "Landing site reachability and decision making for UAS forced landings." Thesis, Loughborough University, 2016. https://dspace.lboro.ac.uk/2134/21139.

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After a huge amount of success within the military, the benefits of the use of unmanned aerial systems over manned aircraft is obvious. They are becoming cheaper and their functions advancing to such a point that there is now a large drive for their use by civilian operators. However there are a number of significant challenges that are slowing their inevitable integration into the national airspace systems of countries. A large array of emergency situations will need to be dealt with autonomously by contingency management systems to prevent potentially deadly incidences. One such emergency si

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Pho, Tam P., and Henry D. Wysong. "DEVELOPMENT OF AN UNMANNED AIRBORNE TELEMETRY TRACKING AND RELAY SYSTEM." International Foundation for Telemetering, 2007. http://hdl.handle.net/10150/604560.

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ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>Aerocross Systems, Inc. is developing a low-cost unmanned airborne telemetry relay system to augment the USAF Air Armament Center’s Eglin Gulf Range instrumentation resources. The system is designed to remotely autotrack and relay S-Band telemetry and VHF/UHF voice communications from test articles beyond the line-of-sight of land-based instrumentation. The system consists of a medium alti

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Christensson, Cornelis, and Albin Flodell. "Wildlife Surveillance Using a UAV and Thermal Imagery." Thesis, Linköpings universitet, Reglerteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129586.

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På senare år har tjuvjakten på noshörningar resulterat i ett kritiskt lågt bestånd. Detta examensarbete är en del av ett initiativ för att stoppa denna utveckling. Målet är att använda en UAV, utrustad med GPS och attitydsensorer, samt en värmekamera placerad på en gimbal, till att övervaka vilda djur. Genom att använda en värmekamera kan djuren lätt detekteras eftersom de antas vara varmare än sin omgivning. En modell av marken vid testområdet har använts för att möjliggöra positionering av detekterade djur, samt analys av vilka områden på marken som ses av kameran. Termen övervakning inklude

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Čajko, Adam. "Využitie dronov v logistike." Master's thesis, Vysoká škola ekonomická v Praze, 2017. http://www.nusl.cz/ntk/nusl-359293.

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This Master´s Thesis Usage of drones in the Logistics of the company SKODA AUTO a.s. reacts to the current trend of unmanned aerial vehicles (drones) which are being used in many areas. Aim of this thesis is to analyse laws which regulate the operation of drones in selected countries, to assess suitability of drones for specific process of inventory of empty containers in the company SKODA AUTO a.s. and to suggest an alternative solution for this process. Thesis investigates usage of drones in the Logistics mainly for goods delivery and stock inventory. Mass drone delivery is currently not fea

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Klaus, Robert Andrew. "Development of a Sense and Avoid System for Small Unmanned Aircraft Systems." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3761.

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Unmanned aircraft systems (UAS) represent the future of modern aviation. Over the past 10 years their use abroad by the military has become commonplace for surveillance and combat. Unfortunately, their use at home has been far more restrictive. Due to safety and regulatory concerns, UAS are prohibited from flying in the National Airspace System without special authorization from the FAA. One main reason for this is the lack of an on-board pilot to "see and avoid" other air traffic and thereby maintain the safety of the skies. Development of a comparable capability, known as "Sense and Avoid"

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SHEIKH, MADELEINE, and ALEXANDER ÖRTENGREN. "UAVs for railway infrastructure operations and maintenance activities." Thesis, KTH, Maskinkonstruktion (Inst.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-244316.

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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. Unmanned Aerial Vehicles, UAVs, have in recent years been adopted commercially due to their potential of increasing work efficiency and productivity. Different actors in the railway industry have recently started to explore

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Sköld, Olivia. "Analys av lägesosäkerheter hos fotogrammetriskt framställda DTM - en jämförelse mellan två programvaror." Thesis, Högskolan i Gävle, Samhällsbyggnad, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-32058.

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Idag blir användningen av drönare allt mer vanlig för dokumentation av markytor. Det är ett billigare alternativ för att dokumentera små och otillgängliga områden. Genom tekniken går det bland annat att framställa olika digitala modeller som representerar jordens yta. En sådan modell kan vara en terrängmodell (DTM) som är en modell av markytan exklusive vegetation, hus eller annat som befinner sig på marken. Modeller kan framställas genom flygdata såsom laserskannad (LiDAR-data) eller flygfotograferade data (flygbilder). För att framställa en digital modell från rådata används olika programvar

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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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Christmann, Hans Claus. "Communication-aware planning aid for single-operator multi-UAV teams in urban environments." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53881.

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With the achievement of autonomous flight for small unmanned aircraft, currently ongoing research is expanding the capabilities of systems utilizing such vehicles for various tasks. This allows shifting the research focus from the individual systems to task execution benefits resulting from interaction and collaboration of several aircraft. Given that some available high-fidelity simulations do not yet support multi-vehicle scenarios, the presented work introduces a framework which allows several individual single-vehicle simulations to be combined into a larger multi-vehicle scenario

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Spencer, Jonathan Cullinan. "A Compact Phased Array Radar for UAS Sense and Avoid." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/5837.

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As small unmanned aerial systems (UAS) are introduced into the national airspace, measures must be introduced to ensure that they do not interfere with manned aviation and other UAS. Radar provides an attractive solution because of its inherent range accuracy and because it works in diverse weather and lighting conditions. Traditional radar systems, however, are large and high power and do not meet the size, weight and power (SWaP) constraints imposed by UAS, and fully integrated automotive solution do not provide the necessary range. This thesis proposes a compact radar system that meets both

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Clothier, Reece Alexander. "Decision support for the safe design and operation of unmanned aircraft systems." Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/51048/1/Reece_Clothier_Thesis.pdf.

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Unmanned Aircraft Systems (UAS) describe a diverse range of aircraft that are operated without a human pilot on-board. Unmanned aircraft range from small rotorcraft, which can fit in the palm of your hand, through to fixed wing aircraft comparable in size to that of a commercial passenger jet. The absence of a pilot on-board allows these aircraft to be developed with unique performance capabilities facilitating a wide range of applications in surveillance, environmental management, agriculture, defence, and search and rescue. However, regulations relating to the safe design and operation of UA

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TOMA, ANTONIO. "Use of Unmanned Aerial Systems in Civil Applications." Doctoral thesis, Politecnico di Torino, 2015. http://hdl.handle.net/11583/2603591.

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Interest in drones has been exponentially growing in the last ten years and these machines are often presented as the optimal solution in a huge number of civil applications (monitoring, agriculture, emergency management etc). However the promises still do not match the data coming from the consumer market, suggesting that the only big field in which the use of small unmanned aerial vehicles is actually profitable is the video-makers’ one. This may be explained partly with the strong limits imposed by existing (and often "obsolete") national regulations, but also - and pheraps mainly - with th

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Олексюк, М. В. "Стратегічні напрямки зниження собівартості продукції підприємства". Thesis, Одеський національний економічний університет, 2020. http://dspace.oneu.edu.ua/jspui/handle/123456789/12465.

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У роботі розглядаються теоретичні аспекти щодо економічної сутності собівартості продукції підприємства; система показників та собівартості та фактори, що впливають на величину витрат підприємства. Проаналізовано основні показники діяльності ПАТ «Одеський кабельний завод «Одескабель» та динаміка собівартості даного підприємства, виявлені фактори, що вплинули на зміну витрат на 1 грн. реалізованої продукції в ПАТ «Одеський кабельний завод «Одескабель». Запропоновано заходи, спрямовані на підвищення ефективності діяльності ПАТ «Одеський кабельний завод «Одескабель» та зниження рівня витрат до

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Small, Elias. "Modelling, Control, and Experimental Evaluation of the Hovering Characteristics of a Tilt-Wing Unmanned Aerial Vehicle." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-61531.

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A Tilt-Wing Unmanned Aerial Vehicle (TW-UAV) and the preliminary evaluation of its hovering characteristics in extended simulation studies and experiments are presented in this Master Thesis. In the beginning, an overview of the TW-UAV's design properties are established, highlighting the novelties of the proposed structure and the overall merits. The TW-UAV's design and structural properties are mathematically modelled and utilized for the synthesis of a cascaded P-PI and PID based control structure for the regulation of its hovering performance. In addition, extensive simulation trials are p

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Eaton, William H. "Automated taxiing for unmanned aircraft systems." Thesis, Loughborough University, 2017. https://dspace.lboro.ac.uk/2134/33502.

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Over the last few years, the concept of civil Unmanned Aircraft System(s) (UAS) has been realised, with small UASs commonly used in industries such as law enforcement, agriculture and mapping. With increased development in other areas, such as logistics and advertisement, the size and range of civil UAS is likely to grow. Taken to the logical conclusion, it is likely that large scale UAS will be operating in civil airspace within the next decade. Although the airborne operations of civil UAS have already gathered much research attention, work is also required to determine how UAS will function

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Samani, Jakob. "UAS-noggrannhet i praktiken : En undersökning av dagens UAS-fotogrammetris noggrannhet." Thesis, Karlstads universitet, Institutionen för geografi, medier och kommunikation, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-31010.

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Sammanfattning Undersökningens syfte är att förstå hur noggrann UAS-fotogrammetrin i dagsläget (2013) är. Frågeställningarna som undersökningen utgick ifrån var: kan UAS-fotogrammetri i dagsläget ge precisa punkter med hjälp av att mäta in centrum av 1x1 meter utlagda plattor som kan ses i ortofoto?; Kan det ge snarlik noggrannhet med pixelstorleken? samt Kan UAS-tekniken idag användas för att producera pålitliga höjdmodeller? För att uppnå syftet har en undersökning utförts med jämförelse på koordinater insamlade med totalstation och insamlade med UAS-fotogrammetriska metoder. Resultatet vi

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Rudol, Piotr. "Increasing Autonomy of Unmanned Aircraft Systems Through the Use of Imaging Sensors." Licentiate thesis, Linköpings universitet, UASTECH – Teknologier för autonoma obemannade flygande farkoster, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-71295.

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The range of missions performed by Unmanned Aircraft Systems (UAS) has been steadily growing in the past decades thanks to continued development in several disciplines. The goal of increasing the autonomy of UAS's is widening the range of tasks which can be carried out without, or with minimal, external help. This thesis presents methods for increasing specific aspects of autonomy of UAS's operating both in outdoor and indoor environments where cameras are used as the primary sensors. First, a method for fusing color and thermal images for object detection, geolocation and tracking for UAS's o

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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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ADER, MARIA, and DAVID AXELSSON. "Drones in arctic environments." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-217918.

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This is a master thesis by Maria Ader and David Axelsson, students at the Master of Science in Engineering degree program in Design and Product Realization at KTH, within the master program Integrated Product Design. The thesis work will benefit ÅF and the EU project ɪɴᴛᴇʀᴀᴄᴛ. The ɪɴᴛᴇʀᴀᴄᴛ project is part of the EU’s effort to forward climate research, and aims to “coordinate and harmonize research and monitoring efforts that will greatly contribute to our knowledge and understanding of changes occurring in the arctic environment.” One out of 12 subprojects within ɪɴᴛᴇʀᴀᴄᴛ aims to “increase aw

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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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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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Densley, Landon T. "Hiring Practices for Graphic Designers In Utah County, Utah." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd489.pdf.

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Belzer, Jessica A. "Unmanned Aircraft Systems in the National Airspace System: Establishing Equivalencyin Safety and Training Through a Fault Tree Analysis Approach." Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1492778505498031.

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Gilson, Maximillian Andrew. "Fault-tolerant mapping and localization for Quadrotor UAV." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright157865858408435.

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Lundmark, Johan, and Häggström Lukas Grönlund. "Utvärdering av digitala terrängmodeller framtagna med flygburen laserskanning och UAS-fotogrammetri." Thesis, Högskolan i Gävle, Samhällsbyggnad, GIS, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-27295.

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Over the last years there has been a rapid development in the UAS-technology (Unmanned Aircraft Systems) and today there are several UAS systems on the market. The fast development has led to differences in both price and capability of taking high-quality images between the systems. The purpose of this study was firstly to investigate how two UAS systems differ in the uncertainty of measurement while making digital terrain models, secondly, to investigate how different UAS systems cope with the laws and requirements that exist for producing digital terrain models for detail projection, SIS-TS

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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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Rodgers, Philip L. "How Utah Parents of Utah School Children Judge School Effectiveness." DigitalCommons@USU, 2003. https://digitalcommons.usu.edu/etd/6194.

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There is a perceived crisis concerning public education in the United States. This has led to an increase in the use of standardized tests for the purpose of measuring school effectiveness. However, the use of standardized tests for this purpose is problematic. Among these problems is the concern that standardized tests may not measure what parents believe are the most important attributes of an effective school. Unfortunately, there is little in the way of empirical evidence regarding parent beliefs in this area. The purpose of this research was to answer the following four questions. 1. What

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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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Tokheim, Arve Jørgen Haugland. "NAROM Mikro UAS." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for teknisk kybernetikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-14759.

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This report presents the development of the NAROM UAS, an Unmanned Aircraft System for educational use by the Norwegian Centre of Space Related Education (NAROM). The NAROM UAS is a small, inexpensive and modular platform intended for technological courses. This UAS enables students to plan and carry out UAS operations while also flying their own experimental payloads.A Skywalker EPO airframe was successfully selected as the platform for the Unmanned Aerial Vehicle (UAV), providing a flight endurance of about one hour and a tested payload capacity of unit{550}{gram}. The NAROM UAV also holds a

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