Tesi sul tema "MAV"
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Giraldez, Dember Alexander. "FPGA-aided MAV vision-based estimation". Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/76960.
Testo completoCataloged from PDF version of thesis.
Includes bibliographical references (p. 79-81).
The process of estimating motion trajectory through an unknown environment from a monocular image sequence is one of the main challenges in Micro Air Vehicle (MAV) navigation. Today MAVs are becoming more and more prevalent in both civilian and military operations. However, with their reduction in size compared to traditional Unmanned Aircraft Vehicles (UAVs), the computational power and payload that can be carried onboard is limited. While there is ample research in motion estimation for systems that are deployed on the ground, have various sensors, as well as multiple cameras, a current challenge consists of deploying minimalistic systems suited specifically for MAVs. This thesis presents a novel approach for six-degrees of freedom motion estimation using a monocular camera containing a Field-Programmable-Gate-Array (FPGA). Most implementations using a monocular camera onboard MAVs stream images to a ground station for processing. However, an FPGA can be programmed for feature extraction, so instead of sending raw images, information is encoded by the FPGA and only frame information, feature locations, and descriptors are transmitted. This onboard precomputation greatly reduces bandwidth usage and ground station processing. The objectives of this research are (1) to show how the raw computing power of an FPGA can be exploited in this application and (2) to evaluate the performance of such a system against a traditional monocular camera implementation. The underlying motivation is to bring MAV systems closer to complete autonomy, meaning all the computation needed for estimation and navigation is carried out autonomously and onboard.
by Dember Alexander Giraldez.
M.Eng.
Greenberg, Jacob. "Visual Odometry for Autonomous MAV with On-Board Processing". Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177290.
Testo completoEn ny visuell registreringsalgoritm (Adaptive Iterative Closest Keypoint, AICK) testas och utvärderas som ett positioneringsverktyg på en Micro Aerial Vehicle (MAV). Tagna bilder från en Kinect liknande RGB-D kamera analyseras och en approximerad position av MAVen beräknas. Förhoppningen är att hitta en positioneringslösning för miljöer utan GPS förbindelse, där detta arbete fokuserar på kontorsmiljöer inomhus. MAVen flygs manuellt samtidigt som RGB-D bilder tas, dessa registreras sedan med hjälp av AICK. Resultatet analyseras för att kunna dra en slutsats om AICK är en rimlig metod eller inte för att åstadkomma autonom flygning med hjälp av den uppskattade positionen. Resultatet visar potentialen för en fungerande autonom MAV i miljöer utan GPS förbindelse, men det finns testade miljöer där AICK i dagsläget fungerar undermåligt. Bristen på visuella särdrag på t.ex. en vit vägg inför problem och osäkerheter i positioneringen, ännu mer besvärande är det när avståndet till omgivningen överskrider RGB-D kamerornas räckvidd. Med fortsatt arbete med dessa svagheter är en robust autonom MAV som använder AICK för positioneringen rimlig.
Tamai, Masatoshi. "Experimental investigations on biologically inspired airfoils for MAV applications". [Ames, Iowa : Iowa State University], 2007.
Cerca il testo completoWatman, Daniel John Mechanical & Manufacturing Engineering Faculty of Engineering UNSW. "Analysis and optimisation of passive flapping wing propulsion for micro aerial vehicles". Publisher:University of New South Wales. Mechanical & Manufacturing Engineering, 2009. http://handle.unsw.edu.au/1959.4/43715.
Testo completoSreetharan, Pratheev Sabaratnam. "Mechanical Intelligence in Millimeter-Scale Machines". Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10426.
Testo completoEngineering and Applied Sciences
Tan, Lee Meng Mark. "Efficient rectenna design for wireless power transmission for MAV Applications". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Dec%5FTan%5FMark.pdf.
Testo completoThesis Advisor(s): David C Jenn, Richard Harkins. Includes bibliographical references (p.119-122). Also available online.
Björk, Daniel. "Automated Propulsion Kit Selection for MAV : A Design Process Tool". Thesis, Linköping University, Department of Mechanical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-4164.
Testo completoThis thesis project has been carried out at Linköpings universitet at the Department of Mechanical Engineering. The emphasis of the project lies in the exploration of automatic selection of components for a propulsion kit. Specifically for this project, propulsion based on electric power and meeting the requirements for use in a Micro Aerial Vehicle (MAV). The key features include a systematic selection method based on user criterias and a model for evaluating propeller performance. These are implemented in a program written as a part of the project. The conclusion is that it is possible to make a program capable of a component selection and that the programs usability is mainly reliant on three factors: model for propeller evaluation, method of selection and the quality of the component database.
Lubbers, Jonathan Louis. "PERCH LANDING MANEUVERS AND CONTROL FOR A ROTATING-WING MAV". UKnowledge, 2011. http://uknowledge.uky.edu/gradschool_theses/152.
Testo completoAgrawal, Arun. "Design of bio-inspired flexible flapping wing for MAV application". Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 116 p, 2008. http://proquest.umi.com/pqdweb?did=1654490211&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.
Testo completoHeiner, Benjamin K. "Construction of large geo-referenced mosaics from MAV video and telemetry data /". Diss., CLICK HERE for online access, 2009. http://contentdm.lib.byu.edu/ETD/image/etd3045.pdf.
Testo completoGopa, Kumar Anand. "Experimental investigation of bio inspired flapping wings for MAV and NAV applications". [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1473212.
Testo completoHeiner, Benjamin Kurt. "Construction of Large Geo-Referenced Mosaics from MAV Video and Telemetry Data". BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/1804.
Testo completoPratt, Kevin S. "Analysis of VTOL MAV use during rescue and recovery operations following Hurricane Katrina". [Tampa, Fla.] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0002209.
Testo completoPapapanayotou, Constantin. "Modelisation mathematique de la circulation sanguine cerebrale et application aux malformations arterioveineuses (mav)". Paris 6, 1988. http://www.theses.fr/1988PA066464.
Testo completoJOLIOT, MALOISEL VERONIQUE. "Etude des mecanismes molecularies de l'induction des nephroblastomes par le retrovirus aviaire mav". Paris 11, 1992. http://www.theses.fr/1992PA112044.
Testo completoPapapanayotou, Constantin. "Modélisation mathématique de la circulation sanguine cérébrale et application aux malformations artérioveineuses, MAV". Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376172495.
Testo completoEverson, Daniel Peter. "Development of a forced oscillation test technique for determination of MAV stability characteristics". College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/3236.
Testo completoThesis 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.
Taylor, Sarah E. "Biologically inspired wing planform optimization". Worcester, Mass. : Worcester Polytechnic Institute, 2009. http://www.wpi.edu/Pubs/ETD/Available/etd-052109-141751/.
Testo completoKeywords: low reynolds; flight; flow visualization; low aspect ratio; micro air vehicles; planform; wings; mav; mavs. Includes bibliographical references (leaves 105-106).
Banerjee, Soumitra Pinak. "Aeroelastic Analysis of Membrane Wings". Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/34930.
Testo completoMaster of Science
Roberts, James Francis. "Design of an Autonomous Hovering Miniature Air Vehicle as a Flying Research Platform". Thesis, The University of Sydney, 2008. http://hdl.handle.net/2123/2773.
Testo completoSalomé, Castro Rodrigo Luis. "El Mercado Alternativo de Valores (MAV) y la financiación de la MIPYME en el 2020". Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2021. http://hdl.handle.net/10757/655988.
Testo completoThis Project develops the necessary preliminary guidelines for the study of the efficiency of the regulations of the Alternative Securities Market (MAV for its acronym in Spanish) according to the precepts of the economic analysis of law. It begins with a description of the justification and objectives of the research project. Afterwards, the project proposes the premise that the MAV does not benefit MSMEs and does not allow them to achieve efficiency due to the lack of real incentives for its operation. In order to arrive at the above mentioned hypothesis, the project provides an introduction to the MAV system and finds and explains some of the shortcomings presents in its regulation. It also reviews relevant literature on the economic analysis of law, specifically in relation to the costs generated by law. Furthermore, it carried out an analysis of the functioning of the MAV and the impact it has on different companies through national and international studies.
Trabajo de investigación
Jung, SeWoong. "Design and development of a micro air vehicle (MAV) test-bed for vision-based control /". [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0007361.
Testo completoSampaio, Rafael Coronel Bueno. "Novel morphologies on flying robots: design for field application". Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/18/18149/tde-21072016-223549/.
Testo completoAs limitações energéticas em robótica aérea de campo muitas vezes levam à sua não utilização em tarefas que poderiam se beneficiar substancialmente de suas inúmeras vantagens. Dependendo da complexidade da missão, os recursos energéticos podem ser despendidos prematuramente ainda durante o traslado ao ponto de interesse. Nesse contexto, se evidencia o problema do lançamento inicial de robôs, o que faz surgir novas possibilidades para o desenvolvimento de novas maneiras de lançá-los. Este trabalho propõe uma nova perspectiva para adaptações morfológicas para robótica aérea as quais podem significativamente minimizar os efeitos das limitações energéticas. Sob essa ótica, são propostas três novas morfologias. A primeira consiste de um robô aéreo híbrido asa fixa/quadrotor visando a possibilidade do lançamento em voo. A segunda consiste de uma aeronave de asa rotativa na configuração quadrotora morfologicamente adaptada para reposicionamento do seu centro de gravidade. O aumento da estabilidade estática passiva da aeronave também visa o seu lançamento durante o voo. A terceira se refere a um veículo aéreo híbrido que combina uma estrutura naval e um quadrotor, capaz de navegar em cenários aquáticos com baixo custo energético. O desenho mecânico resultante permite sua operação no ponto ótimo tanto para a navegação aérea quanto aquática, oferecendo estabilidade estática em todos os cenários (terra, ar e água). São apresentados todos os detalhes de conceito, concepção, análise, projeto e simulação em voo das três novas plataformas. Uma validação robusta dos sistemas de controle e estabilidade é realizada por sistema de visão ©VICON. Por fim, ensaios em campo são realizados, apresentando resultados experimentais otimistas para a aplicação das três novas morfologias.
Vitale, Robert L. "Design and prototype development of a wireless power transmission system for a micro air vehicle (MAV)". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1999. http://handle.dtic.mil/100.2/ADA367272.
Testo completoThesis advisor(s): David C. Jenn. "June 1999." Includes bibliographical references (p. 171-172). Also available online.
KHELIFI, YOUNES CHERAZ. "Caracterisation des sequences virales importantes pour l'induction des nephroblastomes par le retrovirus aviaire mav-1(n)". Paris 6, 1999. http://www.theses.fr/1999PA066266.
Testo completoParís, i. Bordas Aleix. "Control and estimation strategies for autonomous MAV landing on a moving platform in turbulent wind conditions". Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/127080.
Testo completoCataloged from the official PDF of thesis.
Includes bibliographical references (pages 67-74).
Micro aerial vehicles (MAVs) are increasing in popularity both for recreational and commercial purposes. In particular, autonomous MAVs are promising in the field of drone delivery due to their scalability, deployability, and low cost compared to traditional ground delivery. Hybrid systems, which combine MAVs taking off and landing from/to trucks and the ground vehicles themselves to increase package delivery efficiency, present even more advantages. Nevertheless, these systems require reliable control strategies that account for the challenging environment present in the vicinity of moving ground vehicles, as well as techniques to estimate these conditions. This thesis presents a novel planning and control strategy that allows a fast, autonomous landing of a micro aerial vehicle (MAV) on a moving ground vehicle, which will be required for truck-drone delivery systems. The turbulent wind conditions near the landing platform are measured online using small, inexpensive whisker-like sensors. The measurements from these sensors are then used by an unscented Kalman filter to estimate the wind speed acting on the MAV, which is then compensated for by a boundary layer sliding controller. The experiments performed validate the robustness of the approach, which allows fast, dynamic landings of a MAV in moving ground vehicles in challenging environments without the need for hovering above the landing platform first.
by Aleix París i Bordas.
S.M.
S.M. Massachusetts Institute of Technology, Department of Aeronautics and Astronautics
Kakar, Jaber Ahmad. "UAV Communications: Spectral Requirements, MAV and SUAV Channel Modeling, OFDM Waveform Parameters, Performance and Spectrum Management". Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/53512.
Testo completoMaster of Science
Sharma, Aman. "System Identification of a Micro Aerial Vehicle". Thesis, Luleå tekniska universitet, Rymdteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-73070.
Testo completoBachmann, Richard Joseph. "A Hybrid Vehicle for Aerial and Terrestrial Locomotion". Case Western Reserve University School of Graduate Studies / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=case1232735399.
Testo completoKresge, Jared T. "Telerobotic System Design for a Remotely Operated Lightweight Park Flyer Mirco Aerial Vehicle". Ohio University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1165012195.
Testo completoBarber, Duncan B. "Accurate Target Geolocation and Vision-Based Landing with Application to Search and Engage Missions for Miniature Air Vehicles". BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/1313.
Testo completoPolakowski, Matthew Ryan. "An Improved Lightweight Micro Scale Vehicle Capable of Aerial and Terrestrial Locomotion". Case Western Reserve University School of Graduate Studies / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1334600182.
Testo completoMwongera, Victor Mwenda. "Stability analysis of a flapping wing MAV in hover and forward flight using bifurcation analysis and continuation methods". Thesis, University of Bristol, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.654468.
Testo completoFinio, Benjamin. "Roll, Pitch and Yaw Torque Control for a Robotic Bee". Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10218.
Testo completoEngineering and Applied Sciences
Ryan, Mark. "Design Optimization and Classification of Compliant Mechanisms for Flapping Wing Micro Air Vehicles". The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1345403446.
Testo completoBotha, Hermanus Van Niekerk. "A Closed Loop Research Platform That Enables Dynamic Control Of Wing Gait Patterns In A Vertically Constrained Flapping Wing - Micro Air Vehicle". Wright State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=wright1462801627.
Testo completoNelson, Derek R. "Cooperative Control of Miniature Air Vehicles". BYU ScholarsArchive, 2005. https://scholarsarchive.byu.edu/etd/1095.
Testo completoLivise, Ramírez William, e Carrillo Jorge Luis Palomino. "El impacto del Mercado Alternativo de Valores MAV en la gestión financiera de las Pymes, en el Perú, año 2018". Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/655086.
Testo completoPymes are the main business sector in Peru and generators of sources of employment in the country, but they have problems of access to financing at low interest rates of lack quality management, generally due to ignorance of financing alternatives and lack of professionalization in management. The present research has as a hypothesis that participating in the Alternative Stock Market improves the financial management of Pymes, in Peru, in 2018, due to the fact that financing through the capital market has a lower interest rate compared to a bank, provides a financing alternative, bargaining power Stakeholders and improves management through professionalization. This thesis is descriptive correlational, of mixed approach, of non – experimental and transversal design. The concepts that will support the evaluation of the relationship between the proposed variables are described. In addition, the steps to be followed for a Pyme to carry out the entire process of preparing and placing obligations in the capital market are explained. To validate the general and specific hypothesis, have conducted 6 interviews to depth to experts with experience in Pymes and knowledge of the MAV. Furthermore, have conducted thirty surveys to professionals with experience in Pymes. The practical case describes the improvements in the indicators and financial management, through the participation of the Pyme in the alternative stock market.
Tesis
Rodriguez, Perez Andres Felipe. "Real-Time Wind Estimation and Video Compression Onboard Miniature Aerial Vehicles". BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/1838.
Testo completoVenugopal, Chengappa Bharath. "A Study of Evolvable Hardware Adaptive Oscillators for Augmentation of Flapping-Wing Micro Air Vehicle Altitude Control". Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1278968118.
Testo completoOwen, Mark Andrew. "Aerial Rendezvous Between an Unmanned Air Vehicle and an Orbiting Target Vehicle". BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2881.
Testo completoLindholm, Malin. "Samspelet mellan skrift och bild i matematikläroböcker". Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-69675.
Testo completoMany of today's mathematics textbooks are multimodal, which means that they contain more forms of communication such as writing and image. This study's contribution was to construct the MAV (Multimodal Analysis Tool) tool that investigates and identifies multimodal text. The study is based on a sociosemiotic theory and its issues were about investigating how the image and image relate to each other, what the image is for function and how it relates to the writing based on the use of MAV. The method used to construct the tool was to create categories based on concepts from socio-chemistry and apply them into two coding schemes. The categories in the first coding scheme were: framing, distance / proximity, overlap and visual rim. The second coding scheme had the categories: decorative, anchor relation, and interchange relation. The result showed that MAV could be used as a tool in the textbooks. It also showed that writing and image often relate to each other by close proximity and that they mostly create an anchoring relationship which means they contribute with an equivalent mathematical content. One conclusion is that this relationship can be beneficial to the students' learning because the content can be abstract and that both the writing and the image need to convey the same information. It was also discussed what the decorative image could create for effects in the student's learning.
Cjuro, Vera Cinthia. "Apertura y Promoción: Iniciativas en Favor del Desarrollo de Mercado de Valores. Entrevista a la Dra. Lilian Rocca Carbajal". Derecho & Sociedad, 2015. http://repositorio.pucp.edu.pe/index/handle/123456789/118547.
Testo completoMohan, Arvind Thanam. "Data-Driven Analysis Methodologies for Unsteady Aerodynamics from High Fidelity Simulations". The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1512058039822368.
Testo completoGilson, Maximillian Andrew. "Fault-tolerant mapping and localization for Quadrotor UAV". Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright157865858408435.
Testo completoLindqvist, Björn. "Combined Control and Path Planning for a Micro Aerial Vehicle based on Non-linear MPC with Parametric Geometric Constraints". Thesis, Luleå tekniska universitet, Rymdteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76212.
Testo completoAdams, Leanne M. "MOLECULAR TYPING OF MYCOBACTERIAL ISOLATES CULTURED FROM THE TISSUE OF INFLAMMATORY BOWEL DISEASE (CROHN'S DISEASE) PATIENTS". Master's thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4450.
Testo completoM.S.
Department of Molecular Biology and Microbiology
Health and Public Affairs
Molecular Biology and Microbiology
Guerra, Elia. "Unmanned Aerial Vehicle (UAV) per applicazioni geomatiche". Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016.
Cerca il testo completoGeyman, Matthew Kenneth. "Wing/Wall Aerodynamic Interactions in Free Flying, Maneuvering MAVs". University of Dayton / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1335113432.
Testo completoGaston, Zachary Robert. "Computational Investigation of a Hinge-connected Hovering Plate". Wright State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1344991071.
Testo completo