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Дисертації з теми "Differential navigation"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 липня 2025

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1

Liu, Langtao. "An intelligent differential GPS navigation system." Thesis, Brunel University, 1997. http://bura.brunel.ac.uk/handle/2438/5219.

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This thesis describes an Intelligent Differential GPS Navigation System developed for a PhD research project. The first part of the work was to apply differential technology to Global Positioning System to locate the current position of the user with an improved positioning accuracy. The essential part of this Differential GPS system is a Differential GPS Reference Station. This DGPS Reference Station includes a DGPS mathematical model and the corresponding algorithms, which calculates the differential correction messages. These messages are then transmitted to a mobile GPS receiver by a radio

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2

Hunzinger, Jason F. "Robust precision navigation using carrier-phase differential GPS." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ29600.pdf.

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3

Vidyarthi, Ananta. "Digital AM Radio Navigation using differential Time Difference of Arrival Principle." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1336762773.

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4

Bruggemann, Troy S. "GPS L1 Carrier Phase Navigation Processing." Thesis, Queensland University of Technology, 2005. https://eprints.qut.edu.au/16122/1/Troy_Bruggermann_Thesis.pdf.

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In early 2002, Queensland University of Technology (QUT) commenced to develop its own low-cost Global Positioning System (GPS) receiver with the capability for space applications such as satellites in Low Earth Orbits, and sounding rockets. This is named the SPace Applications Receiver (SPARx). This receiver development is based on the Zarlink (formerly known as Mitel) GP2000 Chip set and is a modification of the Mitel Orion 12 channel receiver design. Commercially available GPS receivers for space applications are few and expensive. The QUT SPARx based on the Mitel Orion GPS receiver desig

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5

Bruggemann, Troy S. "GPS L1 Carrier Phase Navigation Processing." Queensland University of Technology, 2005. http://eprints.qut.edu.au/16122/.

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Анотація:

In early 2002, Queensland University of Technology (QUT) commenced to develop its own low-cost Global Positioning System (GPS) receiver with the capability for space applications such as satellites in Low Earth Orbits, and sounding rockets. This is named the SPace Applications Receiver (SPARx). This receiver development is based on the Zarlink (formerly known as Mitel) GP2000 Chip set and is a modification of the Mitel Orion 12 channel receiver design. Commercially available GPS receivers for space applications are few and expensive. The QUT SPARx based on the Mitel Orion GPS receiver desig

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6

Zhang, Yujie. "High Performance Differential Global Positioning System for Long Baseline Application." Ohio University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1129587373.

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7

Barton, Ian M. "Antenna Performance Analysis for the Nationwide Differential Global Positioning." Ohio University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1126820930.

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8

Marquis, Carl W. "Integration of differential GPS and inertial navigation using a complementary Kalman filter /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1993. http://handle.dtic.mil/100.2/ADA273370.

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Thesis (M.S. in Aeronautical Engineering) Naval Postgraduate School, September 1993.<br>Thesis advisor(S): Kaminer, Isaac I. "September 1993." Includes bibliographical references. Also available online.

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9

Marquis, Carl W. III. "Integration of differential GPS and inertial navigation using a complementary Kalman filter." Thesis, Monterey, California. Naval Postgraduate School, 1993. http://hdl.handle.net/10945/39974.

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Approved for public release; distribution is unlimited.<br>Precise navigation with high update rates is essential for automatic landing of an unmanned aircraft. Individual sensors currently available - INS, AHRS, GPS, LORAN, etc. - cannot meet both requirements. The most accurate navigation sensor available today is the Global Positioning System or GPS. However, GPS updates only come once per second. INS, being an on-board sensor, is available as often as necessary. Unfortunately, it is subject to the Schuler cycle, biases, noise floor, and cross-axis sensitivity. In order to design and verify

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10

Casper, Adlerteg, and Sen Adem. "Navigation with variable point of reference for 3DOF differential drive mobile robot." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-54574.

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In this thesis, a kinematic model for controlling an Omni-directional 3 DOF DDR with an external navigation point is presented. Two different dynamic models for investigating the resulting torque on the three active motors on the robot are also developed and validated. The focus of the thesis is on the design of kinematic and dynamic models in an ideal environment and the kinematic model in a high fidelity environment. The kinematic model uses inverse kinematics to translate the controlling motion reference from the external navigation point to the three active motors on the DDR. The thesis al

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11

McCall, Daryl Lynn. "Investigation through simulation techniques of the application of differential GPS to civil aviation." Ohio : Ohio University, 1985. http://www.ohiolink.edu/etd/view.cgi?ohiou1184013759.

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12

Yang, Yao-Bang Steven. "Interface and performance analysis of a local area differential GPS VHF navigation augmentation broadcast system." Ohio University / OhioLINK, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1184616378.

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13

Proni, Federico. "Control and navigation of a rover for agricultural purposes." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/11029/.

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L’obiettivo di questa tesi è di descrivere e implementare via software un modello di rover autonomo per uso in ambito agricolo. La scelta di questo argomento deriva dal fatto che al laboratorio CASY dell’Università di Bologna è stato commissionato un robot che possa aiutare piccoli imprenditori agricoli a essere competitivi con i più grandi. Le funzionalità che il robot avrà, una volta ultimato, andranno dal tagliare l’erba allo spruzzare fertilizzante sugli alberi da frutto. Questa tesi si interessa del progetto del sistema di navigazione. Inizialmente viene introdotto il modello cinematico

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14

Turhan, Birol Erdem. "Optimisation of MF DGNSS, maritime and aeronautical radiobeacon coverage by frequency re-assignment." Thesis, Bangor University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298601.

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15

Grant, Alan James. "Availability, continuity, and selection of maritime DGNSS radiobeacons." Thesis, Bangor University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248894.

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16

Nguyen, Tam Xuan. "Differential global positioning system for precision landings." Ohio : Ohio University, 1990. http://www.ohiolink.edu/etd/view.cgi?ohiou1183653211.

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17

Villa, Andres Eduardo. "Autonomous Formation Flying and Proximity Operations Using Differential Drag on the Mars Atmosphere." DigitalCommons@CalPoly, 2016. https://digitalcommons.calpoly.edu/theses/1571.

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Due to mass and volume constraints on planetary missions, the development of control techniques that do not require fuel are of big interest. For those planets that have a dense enough atmosphere, aerodynamic drag can play an important role. The use of atmospheric differential drag for formation keeping was first proposed by Carolina L. Leonard in 1986, and has been proven to work in Earth atmosphere by many missions. Moreover, atmospheric drag has been used in the Mars atmosphere as aerobraking technique to decelerate landing vehicles, and to circularize the orbit of the spacecraft. Still, no

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18

Leite, Nelson Paiva Oliveira, Israel Cordeiro Rocha, Fernando Walter, and Elder Moreira Hemerly. "The Development of a Flight Test Real Time GPS Navigation Tool (GNAV)." International Foundation for Telemetering, 2008. http://hdl.handle.net/10150/606156.

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ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California<br>The real time acquisition and monitoring of the aircraft trajectory parameters is essential for the safety of the flight tests campaigns held by most of the tests centers. Nowadays the us age of an airborne GPS receiver as the main sensor for these parameters has become the preferred solution for the Flight Tests Instrumentation (FTI) systems. The main problem arises when it is

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19

Mathur, Navin G. "Feasibility of using a low-cost inertial measurement unit with centimeter accuracy differential global positioning system." Ohio University / OhioLINK, 1999. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1181173720.

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20

Berz, Gerhard E. "Integration of differential global positioning system and an inertial navigation system for aircraft surface movement guidance." Ohio University / OhioLINK, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1176841429.

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21

Bruckner, Dean C. "On the Treatment of Noise and Conspiring Bias in Dual-Frequency Differential Global Navigation Satellite Systems." Ohio University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1262040825.

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22

Huang, Jidong. "A HIGH-INTEGRITY CARRIER PHASE BATCH PROCESSOR FOR DIFFERENTIAL SATELLITE POSITIONING." Ohio University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1196143814.

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23

Zhao, Yingwei [Verfasser], Matthias [Akademischer Betreuer] Becker, and Andreas [Akademischer Betreuer] Eichhorn. "Optimized Filter Design for Non-Differential GPS/IMU Integrated Navigation / Yingwei Zhao. Betreuer: Matthias Becker ; Andreas Eichhorn." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2015. http://d-nb.info/1111910979/34.

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24

Suddapalli, Rajesh. "Aircraft position integrity for Differential Satellite-based Navigation in the presence of both bias and noise errors." Ohio University / OhioLINK, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1108478721.

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25

Swanson, Joshua G. Cowell Charles Mark. "A test of differential GPS correction methods at Fort Huachuca, Arizona." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6454.

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Анотація:

Title from PDF of title page (University of Missouri--Columbia, viewed on Feb 19, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Thesis advisor: Dr. C. Mark Cowell. Includes bibliographical references.

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26

Christofis, Alexandros. "On design and analysis of a Differential Global Positioning System (DGPS) aided navigation system for an unmanned airborne vehicle." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA302924.

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27

Štark, Zdeněk. "Řízení pohybu vozítka." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218015.

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In this thesis, a simple small vehicle powered by differential chassis was projected and constructed. The vehicle is controlled manually with the help of user program on personal computer (PC). The software equipment allows recording trajectory run by the small vehicle and then repeating it automatically. The operation system of the small vehicle is based on microcontroller ATmega16 series. Communication between the microcontroller and PC is carried out through RS232 serial bus. The vehicle has digital compass and five reflex sensors that serve for obstruction detection in the closest vicinity

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28

Waid, James D. "Development of an interferometric differential global positioning system ground reference station." Ohio : Ohio University, 1993. http://www.ohiolink.edu/etd/view.cgi?ohiou1176313801.

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29

Lien, Torgrim Aalvik. "Mobile Robotics in Precision Agriculture : A CAN bus interface implementation of differential drive and exploration of localization, pose estimation and autonomous navigation." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for teknisk kybernetikk, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-23057.

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A complete setup of sensors, estimators and controllers for autonomous and manual control of an unmanned dierential steered ground vehicle has been implemented in this paper. The entire system is implemented in Robot Operative System (ROS) using the open source ROS software platform FroboMind as a foundation. The system is running on a Ubuntu 12.10 laptop, with the Groovy distribution of ROS.A reliable CANopen communication for real-time control and monitoring of the motors over a single CAN bus have been deployed, with security measures for handling loss of connection between the motor contro

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30

Кондратюк, Василь Михайлович, та Vasyl M. Kondratiuk. "Методи і алгоритми прецизійного визначення місцеположення рухомих об’єктів за сигналами глобальних навігаційних супутникових систем". Thesis, Національний авіаційний університет, 2021. https://er.nau.edu.ua/handle/NAU/49720.

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Дисертаційна робота присвячена застосуванню глобальних навігаційних супутникових систем (ГНСС) для вирішення актуальних наукових завдань: прецизійного визначення місцеположення рухомих об’єктів за допомогою обробки кодових і фазових ГНСС-спостережень без ускладненої процедури розв’язання фазової неоднозначності. В дисертації вирішено науково-технічну задачу розробки методів і алгоритмів прецизійного визначення місцеположення рухомих об’єктів за допомогою обробки кодових і фазових ГНСС-спостережень без ускладненої процедури розв’язання фазової неоднозначності. Удосконалено метод обробки кодов

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31

Levis, Aaron. "Determining Feasibility of a Propulsionless Microsatellite Formation Flight Mission." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1882.

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Benefits of developing missions with multiple formation flying spacecraft as an alternative to a traditional monolithic vehicle are becoming apparent. In some cases, these missions can lower cost and increase flexibility among other situational advantages. However, there are various limitations that are imposed by these missions that are centered on the concept of maintaining the necessary formation. One such limitation is that of the propulsion system required for each spacecraft. To mitigate the complexity and mass of the onboard propulsion, the pairing of electromagnetic actuators and diffe

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32

Allen, Peyton M. "Incorporation of a Differential Global Positioning System (DPGS) in the control of an unmanned aerial vehicle (UAV) for precise navigation in the Local Tangent Plane (LTP)." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA333402.

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33

Sert, Hugues. "De l’utilisation de l’algèbre différentielle pour la localisation et la navigation de robots mobiles autonomes." Thesis, Ecole centrale de Lille, 2013. http://www.theses.fr/2013ECLI0002/document.

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Анотація:

Ce travail étudie l'apport de l'algèbre différentielle à deux problématiques principales de la robotique mobile à roues, la localisation et la navigation. La première problématique consiste à être capable de dire où le robot se situe dans son environnement. Nous supposons ici que nous possédons un certain nombre de points d'intérêt de l'espace dont les coordonnées dans cette espace sont connues. En fonction du nombre de points d'intérêt, il est possible ou non de localiser le robot. Cette notion de localisabilité est définie et étudiée dans le cadre algébrique. Nous montrons que ce cadre d'étu

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34

Schrock, Ken, Todd Freestone, and Leon Bell. "GPS RECEIVER SELECTION AND TESTING FOR LAUNCH AND ORBITAL VEHICLES." International Foundation for Telemetering, 2000. http://hdl.handle.net/10150/608283.

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International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California<br>NASA Marshall Space Flight Center’s Bantam Robust Guidance Navigation & Control Project is investigating off the shelf navigation sensors that may be inexpensively combined into Kalman filters specifically tuned for launch and orbital vehicles. For this purpose, Marshall has purchased several GPS receivers and is evaluating them for these applications. The paper will discuss the receiver selection criteria and the test equipment used for evaluation. An

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35

Ambrakaitis, Rimas. "GBAS sistemos taikymo Lietuvos aviacijoje galimybių tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130617_184941-34990.

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Baigiamajame magistro darbe nagrinėjamos palydovinės tikslaus tūpimo pagal prietaisus sistemos taikymo Lietuvos aviacijoje galimybės. Aptartos palydovinės navigacijos sistemos tikslumą įtakojančios paklaidos, jų šaltiniai. Nagrinėjama GBAS sistemos struktūra, veikimo principas, paklaidų eliminavimo būdai. Išnagrinėtos šios sistemos panaudojimo galimybės (infrastruktūros ir ekonominiu požiūriais) tarptautiniuose Vilniaus, Kauno, Palangos ir Šiaulių oro uostuose. Atlikti bandymai Vilniaus tarptautiniame oro uoste, įvertinant potencialias GPS paklaidas bei įvertinant GBAS sistemos tikslumo ir tin

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36

Sefastsson, Ulf. "Evaluation of Missile Guidance and Autopilot through a 6 DOF Simulation Model." Thesis, KTH, Optimeringslära och systemteori, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-188897.

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Missile guidance and autopilot have been active fields of research since the second world war. There are lots of literature on the subjects, but the bulk of which are confined to overly simplified models, and therefore the publications of the methods applied to more realistic models are scarce. In this report a nonlinear 6 DOF simulation model of a tail-controlled air-to-air missile is considered. Through several assumptions and simplifications a linearized approximation of the plant is obtained, which then is used in the implementation of 5 guidance laws and 2 autopilots. The guidance laws ar

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37

Conrad, Michael Curt. "COMET: CONSTRAINED OPTIMIZATION OF MULTIPLE-DIMENSIONS FOR EFFICIENT TRAJECTORIES." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/666.

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The paper describes the background and concepts behind a master’s thesis platform known as COMET (Constrained Optimization of Multiple-dimensions for Efficient Trajectories) created for mission designers to determine and evaluate suitable interplanetary trajectories. This includes an examination of the improvements to the global optimization algorithm, Differential Evolution, through a cascading search space pruning method and decomposition of optimization parameters. Results are compared to those produced by the European Space Agency’s Advanced Concept Team’s Multiple Gravity Assist Program.

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38

Maceček, Ivo. "Datová fúze satelitní navigace a kompasu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218308.

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Theoretical information about different satellite navigation systems used for determination of position. Special attention is attended to system GPS. There are consulted main principles of the GPS and some error sources. Application of differential GPS for minimization of these errors is discussed. Next part is about examples of basic principles for measuring earth magnetic field. Last chaps are about practical realization of mentioned DGPS, which is applied for outdoor mobile robot navigation. There is described hardware structure, software utilities and application of an aided tool for GPS -

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39

Ferreira, Esteves Paulo Alexandre. "Techniques d'acquisition à haute sensibilité des signaux GNSS." Thesis, Toulouse, ISAE, 2014. http://www.theses.fr/2014ESAE0016/document.

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Анотація:

Les systèmes de navigation par satellite (GNSS) font partie de notre quotidien. On peut présentement les trouver dans un ensemble d’applications. Avec les nouveaux besoins, des nouveaux enjeux sont aussi apparus : le traitement du signal dans les environnements urbains est extrêmement complexe. Dans cette thèse, le traitement des signaux GNSS à faible puissance est abordé, en particulier dans la première phase du traitement, nommé acquisition de signal. Le premier axe de rechercheporte sur l’analyse et la compensation de l’effet Doppler dans l’acquisition. Le décalage Doppler perçu par l’utili

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40

Gunnam, Kiran Kumar. "A DSP embedded optical naviagtion system." Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969/13.

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41

Chaturapruek, Sorathan. "A Mathematical Framework for Unmanned Aerial Vehicle Obstacle Avoidance." Scholarship @ Claremont, 2014. http://scholarship.claremont.edu/hmc_theses/60.

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Анотація:

The obstacle avoidance navigation problem for Unmanned Aerial Vehicles (UAVs) is a very challenging problem. It lies at the intersection of many fields such as probability, differential geometry, optimal control, and robotics. We build a mathematical framework to solve this problem for quadrotors using both a theoretical approach through a Hamiltonian system and a machine learning approach that learns from human sub-experts' multiple demonstrations in obstacle avoidance. Prior research on the machine learning approach uses an algorithm that does not incorporate geometry. We have developed tool

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42

Kirven, Thomas C. "AUTONOMOUS QUADROTOR COLLISION AVOIDANCE AND DESTINATION SEEKING IN A GPS-DENIED ENVIRONMENT." UKnowledge, 2017. https://uknowledge.uky.edu/me_etds/105.

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Анотація:

This thesis presents a real-time autonomous guidance and control method for a quadrotor in a GPS-denied environment. The quadrotor autonomously seeks a destination while it avoids obstacles whose shape and position are initially unknown. We implement the obstacle avoidance and destination seeking methods using off-the-shelf sensors, including a vision-sensing camera. The vision-sensing camera detects the positions of points on the surface of obstacles. We use this obstacle position data and a potential-field method to generate velocity commands. We present a backstepping controller that uses t

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Ortiz, Cantin. "Neuronal discrimination of visual environments differentially depends on behavioural context in the hippocampus and neocortex." Electronic Thesis or Diss., Sorbonne université, 2024. http://www.theses.fr/2024SORUS311.

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Créer des souvenirs de son environnement est une aptitude fondamentale à la survie, pour trouver de la nourriture, un abri ou échapper à des prédateurs. Pour former des souvenirs spatiaux, il faut générer une carte mentale de l'espace, appelée carte cognitive. On pense que ces cartes apparaissent dans CA1, la couche de sortie de l'hippocampe, une région du cerveau cruciale pour former de nouveaux souvenirs épisodiques. Pour utiliser des souvenirs spatiaux, il faut savoir si un environnement a déjà été visité. Cela nécessite de différencier des environnements qui peuvent paraître similaires mai

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GRASSI, FRANCESCO. "Statistical and Graph-Based Signal Processing: Fundamental Results and Application to Cardiac Electrophysiology." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2710580.

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Анотація:

The goal of cardiac electrophysiology is to obtain information about the mechanism, function, and performance of the electrical activities of the heart, the identification of deviation from normal pattern and the design of treatments. Offering a better insight into cardiac arrhythmias comprehension and management, signal processing can help the physician to enhance the treatment strategies, in particular in case of atrial fibrillation (AF), a very common atrial arrhythmia which is associated to significant morbidities, such as increased risk of mortality, heart failure, and thromboembolic even

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Demarchi, Leonardo. "Visuomotor control in Danionella cerebrum." Electronic Thesis or Diss., Sorbonne université, 2025. http://www.theses.fr/2025SORUS114.

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Nous avons développé un système de réalité virtuelle adapté à Danionella cerebrum, un poisson miniature et transparent, permettant l'imagerie cérébrale à l'échelle du cerveau entier pendant une navigation fictive. Nous avons observé que les poissons peuvent ajuster leur orientation et leur vitesse de nage afin de stabiliser leur position en réponse à un mouvement de leur environnement visuel simulant un courant. En manipulant les paramètres de rétroaction, nous avons démontré que des délais dans la boucle sensorimotrice peuvent entraîner des oscillations persistantes de la vitesse de nage. Ces

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Zhao, Yingwei. "Optimized Filter Design for Non-Differential GPS/IMU Integrated Navigation." Phd thesis, 2015. https://tuprints.ulb.tu-darmstadt.de/4929/7/tud_dissertation.pdf.

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Анотація:

The endeavours in improving the performance of a conventional non-differential GPS/MEMS IMU tightly-coupled navigation system through filter design, involving nonlinear filtering methods, inertial sensors' stochastic error modelling and the carrier phase implementation, are described and introduced in this thesis. The main work is summarised as follows. Firstly, the performance evaluation of a recently developed nonlinear filtering method, the Cubature Kalman filter (CKF), is analysed based on the Taylor expansion. The theoretical analysis indicates that the nonlinear filtering method CKF

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CHEN, YONG-MING, and 陳永明. "A study of differential GPS method applied to ground vehicle navigation." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/60610308607539929945.

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Liu, Chia-Chi, and 劉家箕. "Distributed Active Embedded Vision System for the Navigation of Differential Mobile Robot." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/99274680177804043835.

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Анотація:

碩士<br>淡江大學<br>電機工程學系碩士班<br>97<br>The navigation for a differential wheeled robot (DWR) in a distributed active-vision pan-tilt-zoom system (DAVPTZS) is developed. The present thesis uses the digital signal processor of TMS320DM642EVM from Texas Instruments Co to be an important platform. The format of color space is YCrCb, where Y denotes the luminance, Cr is the red color, and Cb is the blue color. For the purpose of easy recognition and localization of DWR, the red and rectangular feature is placed on the top of the DWR. In the beginning, the visual information coming from the speed dome is

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Raghunathan, T. "Differential Evolution Based Interceptor Guidance Law." Thesis, 2011. https://etd.iisc.ac.in/handle/2005/2014.

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Анотація:

Kinematics based guidance laws like the proportional navigation (PN) and many other linear optimal guidance laws perform well in near-collision course conditions. These have been studied thoroughly in the literature from all aspects, ranging from optimality to capturability, for planar or two dimensional interceptor-target engagements, and to a lesser extent, for three dimensional engagements. But guidance in widely off-collision course conditions like high initial heading errors has been relatively less studied. This is probably due to the inherently high nonlinearity of the problem, which ma

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Raghunathan, T. "Differential Evolution Based Interceptor Guidance Law." Thesis, 2011. http://etd.iisc.ernet.in/handle/2005/2014.

Повний текст джерела

Анотація:

Kinematics based guidance laws like the proportional navigation (PN) and many other linear optimal guidance laws perform well in near-collision course conditions. These have been studied thoroughly in the literature from all aspects, ranging from optimality to capturability, for planar or two dimensional interceptor-target engagements, and to a lesser extent, for three dimensional engagements. But guidance in widely off-collision course conditions like high initial heading errors has been relatively less studied. This is probably due to the inherently high nonlinearity of the problem, which ma

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