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Rozprawy doktorskie na temat „LiDAR”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Diaz, Rosemary Teresa. "Multifunction lidar." Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1679292501&sid=3&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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Vandermeer, Aaron D. "Lidar measurements of tropospheric aerosol from the Lidar In-space Technology Experiment." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq43408.pdf.

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Fava, Marica. "LIDAR Aviotrasportati Mediante RPAS." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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Tesi riguardante i LIDAR aviotrasportati mediante RPAS, cioè relativa alla realizzazione di rilievi LIDAR utilizzando come mezzo di trasporto dei sensori (Laser scanner, Piattaforma inerziale, ricevitore GPS) i droni. Nella trattazione, sono state affrontate le principali caratteristiche tecnologiche e funzionali dei vari strumenti impiegati nel rilievo LIDAR, cercando di comprenderne il ruolo individuale e la relativa sinergia.

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Helt, Michael F. "Vegetation identification with Lidar." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Sep%5FHelt.pdf.

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Almqvist, Erik. "Airborne mapping using LIDAR." Thesis, Linköping University, Automatic Control, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-58866.

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<p>Mapping is a central and common task in robotics research. Building an accurate map without human assistance provides several applications such as space missions, search and rescue, surveillance and can be used in dangerous areas. One application for robotic mapping is to measure changes in terrain volume. In Sweden there are over a hundred landfills that are regulated by laws that says that the growth of the landfill has to be measured at least once a year.</p><p>In this thesis, a preliminary study of methods for measuring terrain volume by the use of an Unmanned Aerial Vehicle (UAV) and a

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Opitz, Rachel Shira. "Lidar analysis for archaeology." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611795.

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Kim, Angela M. "Simulating full-waveform LIDAR." Thesis, Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Sep/09Sep%5FKim.pdf.

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Thesis (M.S. in Applied Mathematics)--Naval Postgraduate School, September 2009.<br>Thesis Advisor(s): Borges, Carlos F. ; Olsen, Richard C. "September 2009." Description based on title screen as viewed on 6 November 2009. Author(s) subject terms: LIDAR, Monte Carlo simulation, full-waveform, model. Includes bibliographical references (p. 105-108). Also available in print.

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8

Hedlund, Marcus. "Weather Influence on LiDAR Signals using the Transient Radiative Transfer and LiDAR Equations." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79945.

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The ongoing development of self driving cars requires accurate measuring devices and the objective of this thesis was to investigate how di↵erent weather will affect one of these devices, known as a LiDAR. A LiDAR uses pulsed laser light to measure the distance to an object. The main goal of this thesis was to solve the transient radiative transfer equation (TRTE) that describes the propagation of radiation in a scattering, absorbing and emitting media. The TRTE was solved in the frequency domain using the discrete ordinate method (DOM) and a matrix formulation. An alternative model to estimat

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9

Edvinsson, Lisette. "Analys av vinddata från lidar." Thesis, Uppsala universitet, Luft-, vatten och landskapslära, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-172353.

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I denna rapport har mätningar från en lidar och mätningar från en meteorologisk mätmast jämförts. En undersökning har även gjorts för vilka atmosfäriska tillstånd som lidarn mäter bra och för vilka förhållanden den mäter mindre bra. Som referens används data från en mätmast, som antas vara korrekta. Platsen för mätningarna är över skog vilket medför mer komplex terräng än över plan mark. Olika filter har utvecklats för de atmosfäriska tillstånd då lidarn mäter sämre, för att filtrera bort de mest extrema förhållandena. Dessa filter filtrerar bort data med för mycket turbulens, låg eller negati

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10

Staffas, Theodor. "Live 3D imaging quantum LiDAR." Thesis, KTH, Tillämpad fysik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297865.

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In this thesis, I demonstrate a singlephoton Light Detection And Ranging, (LiDAR)system operating at 1550 nm capable of reconstructing 3D environments live withmm resolution at a rate of 400 points per second using eyesafe laser pulses. Thesystem was built using off-the-shelf optical components and analysis was performedusing open-source software. I utilise a single superconducting nanowire single photondetector (SNSPD) with 19 ps time jitter and 85% detection efficiency to achieve a 4 psdepth resolution in live measurements. I also show that by performing slightly moretime costly post an

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11

Agarwal, Megha, Alisha Bandekar, Ashley Kang, et al. "Automotive LiDAR Collision-Avoidance System." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/624893.

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The project at hand is an Automotive LiDAR Collision Avoidance System sponsored by Texas Instruments. The purpose of this project is to design and create a LiDAR system that utilizes Texas Instruments' technology to avoid forward collisions when mounted on a remote control car. The team is made up of six seniors from the University of Arizona of four different engineering disciplines including electrical, mechanical, computer, and optical engineering. The LiDAR Collision avoidance system is designed and built under a budget constraint of $4,000 and a non-negotiable completion deadline of

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12

NIANG, DJIBRIL. "Performance evaluation of LIDAR demonstrator." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2023. https://hdl.handle.net/10281/404777.

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In questa tesi, sono state realizzate tre diverse board: un DC-DC per il supply, un control unit per programmare i segnali d'ingresso del driver, un firing unit che contiene il chip principale(driver e GaN). Abbiamo usato il nitruro di galio perché è meglio adatto del silicio ad alte frequenze. L'obbiettivo principale è di raggiungere 50A di picco di corrente con soli 5ns di pulse. Sono stati usati Altium design per il disegno delle board e Ansys per l'evaluazione delle induttanze parassite. Questo ultimo crea diversi problemi e può limitare il raggiungimento del picco di corrente. Quindi biso

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13

Royer, Philippe. "Lidars à rétrodiffusion Rayleigh-Mie et Raman mobiles pour l’étude des cycles couplés des aérosols et de la vapeur d’eau." Paris 6, 2011. http://www.theses.fr/2011PA066576.

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Les travaux présentés ici visent à améliorer la compréhension des impacts des aérosols sur le climat et la qualité de l’air et des interactions entre les aérosols et la vapeur d’eau. Pour répondre à ces enjeux scientifiques, de nouveaux moyens de télédétection active par lidar ont été développés, qui permettent la mesure des propriétés optiques des aérosols et du rapport de mélange en vapeur d’eau dans la basse et moyenne troposphère. Les études sur les propriétés optiques des aérosols ont été menées à partir du lidar à rétrodiffusion Rayleigh-Mie développé initialement par le LSCE et du lidar

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14

Klein, Céline. "Conception et prototypage d’un lidar pour la mesure du contenu en eau liquide dans le brouillard." Thesis, Toulouse, INPT, 2013. http://www.theses.fr/2013INPT0094/document.

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L’objet de cette thèse est la conception d’un lidar dédié à la mesure du profil du contenu en eau liquide dans le brouillard. Actuellement, ce paramètre n’est mesuré que sur des volumes restreints, au sol ou à des altitudes données. Or sa connaissance devrait apporter une meilleure compréhension de l’évolution du brouillard et devrait aussi constituer une information intéressante pour le contrôle des modèles de prévision du phénomène. Elle est en théorie possible, car il a été montré à la fin des années 70 qu’il existe une relation empirique linéaire entre le contenu en eau liquide et le coeff

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15

Landgård, Jonas. "Segmentering och klassificering av LiDAR-data." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-5555.

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<p>With numerous applications in both military and civilian life, the demand for accurate 3D models of real world environments increases rapidly. Using an airborne laser scanner for the raw data acquisition and robust methods for data processing, the researchers at the Swedish Defence Research Agency (FOI) in Linköping hope to fully automate the modeling process.</p><p>The work of this thesis has mainly been focused on three areas: ground estimation, image segmentation and classification. Procedures have in each of these areas been developed, leading to a new algorithm for ground estimation, a

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16

Nathanson, Marcus. "Using LiDAR to model rating curves." Licentiate thesis, Stockholms universitet, Institutionen för naturgeografi och kvartärgeologi (INK), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-84292.

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17

DeMello, John E. "Low-cost direct detect spaceborne LIDAR." Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/42606.

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Approved for public release; distribution is unlimited<br>LIDAR has widely been used to create very accurate 3-D models for use in a wide range of commercial, governmental and nonprofit applications. This thesis identifies how recent advancements in Nd:YAG fiber lasers and InGaAs GmAPDs could be applied to space-borne missions, enabling low-cost solutions that fulfill NASA’s ICESat-2 and United States Geological Survey (USGS) objectives. An analysis of launch vehicles, standard spacecraft buses and payload technologies identified three potential low-cost solutions: one hosted aboard Iridium an

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18

Mueller, Amanda R. "LiDAR and image point cloud comparison." Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/43960.

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Approved for public release; distribution is unlimited<br>This paper analyzes new techniques used to extract 3D point clouds from airborne and satellite electro-optical data. The objective of this research was to compare the three types of point clouds to determine whether image point clouds could compete with the accuracy of LiDAR point clouds. The two main types of image point clouds are those created photogrammetrically, with two side-by-side images, or through feature matching between multiple images using multiview stereo techniques. Two software packages known for handling aerial imagery

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19

Morley, Richard James. "RF excited CO2 amplifiers for lidar." Thesis, Heriot-Watt University, 1992. http://hdl.handle.net/10399/1484.

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O'Connor, Ewan James. "Lidar and radar studies of stratocumulus." Thesis, University of Reading, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.412197.

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Gibbons, Jasper, and David Moss. "LIDAR OUTGOING LASER ENERGY MEASUREMENT SYSTEM." International Foundation for Telemetering, 2004. http://hdl.handle.net/10150/605772.

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International Telemetering Conference Proceedings / October 18-21, 2004 / Town & Country Resort, San Diego, California<br>A flexible system has been designed to accurately measure and average the outgoing laser energy of a micro-pulse LIDAR unit (MPL). This system incorporates specifically designed analog measurement circuitry interfaced with a microcontroller, allowing researchers to manage experiments from a personal computer. The final system produces a linearly proportional response between an incident laser energy input and the analog and digital circuitry’s output, accurate to within 0.1

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22

Amaglo, Worlanyo Yao. "Volume Calculation Based on LiDAR Data." Thesis, KTH, Fastigheter och byggande, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299594.

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In this thesis project, the main objective is to compare and evaluate different surveying methodsfor volume determination; Photogrammetry, Terrestrial Laser Scanning(TLS) and Aerial LaserScanning (ALS) based on time consumption, efficiency and safety in the mining industry. In addition,a volumetric computational method based on coordinates would be formulated to estimatethe volume of stockpiles using lidar data captured with a laser scanner. The use of GNSS receiver, UAV (Unmanned Aerial Vehicle) equipped with a LiDAR sensor as wellas a camera, and terrestrial laser scanner were adopted for ma

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Gast, David W. "LIDAR design for space situational awareness." Thesis, Monterey, Calif. : Naval Postgraduate School, 2008. http://edocs.nps.edu/npspubs/scholarly/theses/2008/Sept/08Sep%5FGast.pdf.

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Thesis (M.S. in Astronautical Engineering)--Naval Postgraduate School, September 2008.<br>Thesis Advisor(s): Agrawal, Brij N. ; Boger, Dan C. "September 2008." Description based on title screen as viewed on November 3, 2008. Includes bibliographical references (p. 79-80). Also available in print.

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Arvidsson, Simon, and Marcus Gullstrand. "Classifying natural forests using LiDAR data." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Datateknik och informatik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-45267.

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In forestry, natural forests are forest areas with high biodiversity, in need of preservation. The current mapping of natural forests is a tedious task that requires manual labor that could possibly be automated. In this paper we explore the main features used by a random forest algorithm to classify natural forest and managed forest in northern Sweden. The goal was to create a model with a substantial strength of agreement, meaning a Kappa value of 0.61 or higher, placing the model in the same range as models produced in previous research. We used raster data gathered from airborne LiDAR, com

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Chester, David B. "A Parameterized Simulation of Doppler Lidar." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/6794.

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Upcoming missions to explore planetary bodies in the solar system will require accurate position and velocity data during descent in order to land safely at a predesignated site. A Doppler lidar instrument could provide measurements of the altitude, attitude, and velocity of the landing vehicle to supplement the data collected by other instruments. A flexible simulation tool would aid the tasks of designing and testing the functionality of such an instrument. LadarSIM is a robust parameterized simulation tool developed for time of flight lidar at Utah State University's Center for Advanced Ima

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Nava, Chocron Yoshua. "Visual-LiDAR SLAM with loop closure." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-265532.

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State-of-the-art LIDAR odometry techniques are exceptionally precise. However, while they solve the localization problem, they perform mapping on-the-run, not being able to close loops, neither re-localize in previously visited environments. This study is concerned with the development of a system that combines an accurate laser odometry estimator, with algorithms for place recognition in order to detect trajectory loops. This project uses widely available datasets from urban driving scenarios and outdoor areas for development and evaluation of the system The results obtained confirm that loop

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Argall, Philip Stephen. "Lidar studies of the middle atmosphere /." Title page, table of contents and abstract only, 1993. http://web4.library.adelaide.edu.au/theses/09PH/09pha686.pdf.

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Costa, Renata Facundes da. "Estudo das propriedades ópticas dos aerossóis no Estado de São Paulo com a técnica de LIDAR Raman." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-05112010-183928/.

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O estudo desenvolvido nessa dissertação foi dividido em dois momentos. Na primeira parte foi apresentado a realização de uma calibração independente do sistema LIDAR Raman de vapor d\'água instalado no CLA seguindo uma metodologia desenvolvida na Howard University, baseada em uma análise cuidadosa da eficiência óptica dos componentes do sistema tendo como objetivo determinar essa eficiência e apresentar a resposta espectral do sistema. Após esse estudo, que permitiu obter um melhor entendimento da área instrumental do sistema, é apresentado, na segunda parte, uma análise preliminar das proprie

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Alem, Nour. "Développement de l'émetteur hyperfréquence d'un système Lidar-Radar pour des applications optiques marines." Thesis, Brest, 2019. http://www.theses.fr/2019BRES0013/document.

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La technique Lidar Radar est couramment utilisée pour la détection de cibles immergées dans des eaux peu profondes inférieures à quelques dizaines de mètres. Cette technique repose sur l’envoi d’un signal modulé associé, à la réception avec un filtre passe bande autour de la fréquence de modulation. Cette technique requiert ainsi un signal optique bleu vert, intense, modulé à des fréquences radar. Nous présentons dans cette thèse de nouvelles architectures de modulateur parfaitement adaptées à cette technique. La 1ère architecture est constituée d’une cavité externe comportant un doubleur intr

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Braña, Isaac. "Turbine-Mounted Lidar:The pulsed lidar as a reliable alternative." Thesis, Högskolan på Gotland, Institutionen för kultur, energi och miljö, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-217020.

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Expectations for turbine-mounted lidar are increasing. The installation of lidars in wind turbine nacelles for measuring incoming winds, preventing wind gusts and increasing energy productions is after recently studies, technically and economically feasible. Among available lidar types, the most studied were continuous wave lidars because they were the most reliable apparatus when this initiative began. However, after studying technical considerations and checking commercial lidars, it was found that pulsed lidarslead this technology due to their promising results. The purpose of this report i

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Seldomridge, Nathan Lewis. "Dual-polarization cloud lidar design and characterization." Thesis, Montana State University, 2005. http://etd.lib.montana.edu/etd/2005/seldomridge/SeldomridgeN0805.pdf.

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Kiemle, Christoph. "Airborne water vapor lidar measurements : 14 Tabellen /." Köln : DLR, Bibliotheks- und Informationswesen, 2008. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016794181&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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Gregorio, López Eduard. "Lidar remote sensing of pesticide spray drift." Doctoral thesis, Universitat de Lleida, 2012. http://hdl.handle.net/10803/96788.

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En aquesta tesi doctoral es proposa utilitzar la tècnica LIDAR (Light Detection And Ranging) per estudiar la deriva de pesticides. A diferència dels col·lectors in situ, aquesta tècnica permet mesurar els aerosols de forma remota, amb elevada resolució temporal i en distància. Els objectius d’aquesta tesi són (1) dissenyar un sistema lidar específic per la mesura de la deriva i (2) avaluar la capacitat d’aquesta tècnica per quantificar la concentració en els núvols de pesticides. Per la consecució de l’objectiu (1) s’ha elaborat una metodologia de disseny, validada mitjançant la construc

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Lampert, Astrid. "Airborne lidar observations of tropospheric arctic clouds." Phd thesis, Universität Potsdam, 2009. http://opus.kobv.de/ubp/volltexte/2010/4121/.

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Due to the unique environmental conditions and different feedback mechanisms, the Arctic region is especially sensitive to climate changes. The influence of clouds on the radiation budget is substantial, but difficult to quantify and parameterize in models. In the framework of the PhD, elastic backscatter and depolarization lidar observations of Arctic clouds were performed during the international Arctic Study of Tropospheric Aerosol, Clouds and Radiation (ASTAR) from Svalbard in March and April 2007. Clouds were probed above the inaccessible Arctic Ocean with a combination of airborne inst

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Wasell, Richard. "Automatisk detektering av diken i LiDAR-data." Thesis, Linköpings universitet, Datorseende, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-72066.

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Den här rapporten har utrett möjligheten att automatiskt identifiera diken frånflygburet insamlat LiDAR-data. Den metod för identifiering som har valts harförst skapat en höjdbild från LiDAR-data. Därefter har den tagit fram kandidatertill diken genom att vektorisera resultatet från en linjedetektering. Egenskaper-na för dikeskandidaterna har sedan beräknats genom en analys av höjdprofilerför varje enskild kandidat, där höjdprofilerna skapats utifrån ursprungliga data.Genom att filtrera kandidaterna efter deras egenskaper kan dikeskartor med an-vändarspecificerade mått på diken presenteras i e

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Forsberg, Olof. "Semantic Stixels fusing LIDAR for Scene Perception." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-224151.

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Autonomous driving is the concept of a vehicle that operates in traffic without instructions from a driver. A major challenge for such a system is to provide a comprehensive, accurate and compact scene model based on information from sensors. For such a model to be comprehensive it must provide 3D position and semantics on relevant surroundings to enable a safe traffic behavior. Such a model creates a foundation for autonomous driving to make substantiated driving decisions. The model must be compact to enable efficient processing, allowing driving decisions to be made in real time. In this th

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Rawle, Christopher B., and n/a. "Coherent multiwavelength sources for tropospheric aerosol lidar." University of Otago. Department of Physics, 2005. http://adt.otago.ac.nz./public/adt-NZDU20070427.114533.

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The monitoring and study of the earth�s atmosphere is becoming an increasingly important task given the current uncertainties in climate prediction. Areas where lidar has been used to further understanding of the atmosphere include monitoring of greenhouse gases, global warming, stratospheric ozone depletion, photochemical smog and aerosol photochemistry. However, the potentially severe long term effects of anthropogenic aerosols on earth�s biosphere are poorly understood. This project seeks to apply state of the art laser technology to develop an innovative multiwavelength lidar system capabl

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Hirschberger, Markus Christoph. "Beiträge zur Erfassung von Wirbelschleppen mit Lidar." Diss., Ludwig-Maximilians-Universität München, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-160756.

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Gwenzi, David. "Lidar remote sensing of savanna biophysical attributes." Thesis, Colorado State University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3720536.

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<p> Although savanna ecosystems cover approximately 20 % of the terrestrial land surface and can have productivity equal to some closed forests, their role in the global carbon cycle is poorly understood. This study explored the applicability of a past spaceborne Lidar mission and the potential of future missions to estimate canopy height and carbon storage in these biomes. </p><p> The research used data from two Oak savannas in California, USA: the Tejon Ranch Conservancy in Kern County and the Tonzi Ranch in Santa Clara County. In the first paper we used non-parametric regression techni

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Shorter, Nicholas. "HEURISTIC 3D RECONSTRUCTION OF IRREGULAR SPACED LIDAR." Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3201.

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As more data sources have become abundantly available, an increased interest in 3D reconstruction has emerged in the image processing academic community. Applications for 3D reconstruction of urban and residential buildings consist of urban planning, network planning for mobile communication, tourism information systems, spatial analysis of air pollution and noise nuisance, microclimate investigations, and Geographical Information Systems (GISs). Previous, classical, 3D reconstruction algorithms solely utilized aerial photography. With the advent of LIDAR systems, current algorithms explore us

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Yaacobi, Ami. "Integrated optical phased arrays for lidar applications." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/100888.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2015.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 111-120).<br>It is no wonder that research in Si photonics (optical components embedded on a silicon platform) has bloomed so rapidly the last few years. Combining low loss, strong refractive index contrast (and, thus, light confinement), with electro-optical and thermo-optical effects, allows for the fabrication of dense and complex electro-optical Si photonics systems. Moreover, b

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Castorena, Juan. "Remote-Sensed LIDAR Using Random Impulsive Scans." International Foundation for Telemetering, 2012. http://hdl.handle.net/10150/581855.

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Third generation full-waveform (FW) LIDAR systems image an entire scene by emitting laser pulses in particular directions and measuring the echoes. Each of these echoes provides range measurements about the objects intercepted by the laser pulse along a specified direction. By scanning through a specified region using a series of emitted pulses and observing their echoes, connected 1D profiles of 3D scenes can be readily obtained. This extra information has proven helpful in providing additional insight into the scene structure which can be used to construct effective characterizations and cla

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Barsaglini, Reni Aparecida. "Pensar, vivenciar e lidar com o diabetes." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/313829.

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Orientador: Ana Maria Canesqui<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas<br>Made available in DSpace on 2018-08-08T02:33:53Z (GMT). No. of bitstreams: 1 Barsaglini_ReniAparecida_D.pdf: 2563294 bytes, checksum: 459d247bf4af378f145f27acb0b7dc16 (MD5) Previous issue date: 2006<br>Resumo: Este estudo analisa as representações sociais e a experiência com o diabetes mellitus, articulando a dimensão simbólica, a partir dos significados e do sentido atribuído à enfermidade, e a dimensão concreta do seu gerenciamento. A investigação é pertinente devido à i

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Braga, José Renato Garcia. "Navegação autônoma de VANT por imagens LiDAR." Instituto Nacional de Pesquisas Espaciais (INPE), 2016. http://urlib.net/sid.inpe.br/mtc-m21c/2018/05.18.16.04.

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Nas últimas décadas, observou-se um aumento gradativo na utilização de Veículo Aéreo Não Tripulado (VANT) em diversas áreas, entre elas, monitoramento do uso da terra, operações de busca e resgate, acompanhamento de impactos ambientais, vigilância de fronteiras, entre outras. Há expectativas no aumento do emprego de VANT em aplicações civis e militares devido ao baixo custo de desenvolvimento e operacional, quando comparados com aeronaves tripuladas. A ausência de tripulação embarcada durante o emprego de VANT, principalmente em missões de grande periculosidade, também é uma vantagem, pois dim

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Ferrari, Marco Antonio. "Laser de Nd:YLF para aplicações em LIDAR." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-02092009-150039/.

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A utilização de lasers de estado sólido bombeados por diodos laser tem atraído interesse crescente devido a sua alta eficiência, seu tamanho compacto e com a possibilidade da operação com altas potências-pico. O objetivo deste trabalho foi estudar configurações de cavidades ressonantes laser, que possibilitem a obtenção de pulsos chaveados Q e futura dobra de freqüência, para aplicações em LIDAR (Light Detection and Ranging), utilizando como meio ativo cristais de Nd:YLF crescidos pelo método de Czochralski no Centro de Lasers e Aplicações IPEN USP, com bombeio lateral por diodo laser, com u

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Cordovil, Luís Cary de Velho Cabral. "Lidar com a variância em produção conserveira." Master's thesis, Instituto Superior de Economia e Gestão, 2010. http://hdl.handle.net/10400.5/3126.

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Mestrado em Gestão e Estratégia Industrial<br>Nos tempos actuais, não basta ser rentável, há que criar uma cultura de melhoria contínua de forma a garantir a sustentabilidade futura do negócio. O Projecto proposto pretende pois estudar métodos e técnicas de planeamento e controlo da produção em ambientes de incerteza numa indústria conserveira de atum, de modo a maximizar o cumprimento do plano de produção e optimizar os recursos disponíveis. Deste modo integraram-se algumas incertezas no MRP II existente, e adoptaram-se algumas das técnicas e metodologias 6-Sigma, visando introduzir conceitos

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Moleski, Travis W. "Trilateration Positioning Using Hybrid Camera-LiDAR System." Ohio University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1628267212548992.

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Öhman, Nikanor. "Simulation of LiDAR data for forestry applications." Thesis, Umeå universitet, Institutionen för fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-149993.

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In forestry it is important to have accurate information about the forest. LiDAR (laser scanning) can be used to scan vast areas of forest and from the data extract information about the trees. The purpose of this thesis is to develop a simulator for LiDAR data. The simulator will be tested on a method for tree localization (Holmgren and Lindberg 2013) to see how parameters like tree density and laser frequency effects the accuracy of the localization. First a simulator which uses simple shaped trees (in the shape of cones) is written. Later on a tree model based on real laser data is created

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Nielsen, Kristin. "Robust LIDAR-Based Localization in Underground Mines." Licentiate thesis, Linköpings universitet, Reglerteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-175001.

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The mining industry is currently facing a transition from manually operated vehicles to remote or semi-automated vehicles. The vision is fully autonomous vehicles being part of a larger fleet, with humans only setting high-level goals for the autonomous fleet to execute in an optimal way. An enabler for this vision is the presence of robust, reliable and highly accurate localization. This is a requirement for having areas in a mine with mixed autonomous vehicles, manually operated vehicles, and unprotected personnel. The robustness of the system is important from a safety as well as a producti

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Horowitz, Luke. "Adaptation of VT-Dbr Lasers for LIDAR." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1902.

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Vernier Tuned Distributed Bragg Reflector (VT-DBR) lasers have had great success in the field of Swept-Source Optical Coherence Tomography (SS-OCT) due to their continuous and nearly 40 nm wavelength tuning range in a single longitudinal mode. Fast sweeps allow for real time imaging with micrometer resolution at a distance of a few centimeters. While this laser has proven quite useful as a medical imaging tool via OCT, it has yet to similarly prove itself for general light detection and ranging (LIDAR) applications due to range limitations that arise from a finite laser coherence length. The g

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