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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Lossy compression and real-time geovisualization for ultra-low bandwidth telemetry from untethered underwater vehicles /

Murphy, Christopher Alden. January 2008 (has links)
Thesis (S.M.)--Joint Program in Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science; and the Woods Hole Oceanographic Institution), 2008. / "September 2008." Bibliography: p. 79-83.
12

Object localization and ranging using stereo vision for use on autonomous ground vehicles

Baravik, Keith Andrew. January 2009 (has links) (PDF)
Thesis (M.S. in Physics)-- Naval Postgraduate School, June 2009. / Thesis Advisor(s): Harkins, Richard ; Haegel, Nancy. "June 2009." Description based on title screen as viewed on July 13, 2009. Author(s) subject terms: Robotic Vision, Unmanned Ground Vehicle. Includes bibliographical references (p. 69-70). Also available in print.
13

Development of a nonlinear 6-degree of freedom miniature rotary-wing unmanned aerial vehicle software model and PID flight path controller using Mathworks Simulink simulation environment

Miranda, Ricardo E. January 2009 (has links) (PDF)
Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, September 2009. / Thesis Advisor(s): Hutchins, Robert G. ; Dobrokhodov, Vladimir ; Kitsios, Ioannis. "September 2009." Description based on title screen as viewed on November 5, 2009. Author(s) subject terms: Hardware in the Loop (HIL), Software in the Loop (SIL) Simulation Environment, 6-Degree of Freedom (6-DOF) Rotary-wing Unmanned Aerial Vehicle (RW UAV) model , PID Flight Path Controllers Includes bibliographical references (p. 111). Also available in print.
14

Information exchange architecture for integrating unmanned vehicles into maritime missions

Woolsey, Aaron L. 06 1900 (has links)
Approved for public release; distribution is unlimited / The United States Navy is committed to implementing and using unmanned vehicles (UVs). Battlegroups have deployed and will continue to deploy with UVs because of their potential effectiveness. However, current UV doctrine does not set forth a standardized set of techniques and procedures for UV information exchange during maritime missions. The focus of this study is to analyze the structure of information flow for unmanned systems and suggest an exchange architecture to successfully inform and build decision maker understanding based on data from UVs in support of these missions. Through analysis of the knowledge-information-data (KID) model, and definition of highlevel functions and tasks created from fleet input, this thesis develops an IDEF0 and PERT representation. It outlines tasks and roles for successfully accomplishing information exchange from UV payload sensors to tactical decision makers. The study concludes with suggested measures of effectiveness and performance to determine the strength and validity of the architecture. / Ensign, United States Navy
15

Stability analysis of a towed body for shipboard unmanned surface vehicle recovery

Roberts, Scott D. 03 1900 (has links)
As the U.S. Navy develops new technologies which enhance automation and reduce crew size onboard naval vessels, unmanned vehicles will become increasingly valuable in conducting maritime operations. Effective launch and recovery systems (LARS) are necessary for unmanned vehicles to efficiently conduct operations at sea. The Towed Body system is a LARS with a wide range of applications for unmanned vehicle operations. The Towed Body can be evaluated as a small vessel with horizontal and vertical control surfaces. Since it is being towed, the directional stability of the Towed Body requires unique consideration due to the presence of the towing force. This thesis examines the effect of varying the longitudinal location of the vertical control surfaces, as well as the effective aspect ratio, size, and number of vertical control surfaces. The results identify critical stability values for the various fin configurations.
16

Formation control for autonomous marine vehicles

Kleeck, Christopher John Van. January 2009 (has links)
Thesis (M. Sc.)--University of Alberta, 2009. / Title from pdf file main screen (viewed on Dec. 23, 2009). "A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Science, Department of Mechanical Engineering, University of Alberta." Includes bibliographical references.
17

Mission tasking of unmanned vehicles /

Johnson, Jada E. January 2004 (has links) (PDF)
Thesis (M.S. in Systems Technology (Command, Control, and Communications))--Naval Postgraduate School, June 2004. / Thesis advisor(s): Orin Marvel. Includes bibliographical references (p. 41-43, 45-46). Also available online.
18

Agent-based simulation of unmanned surface vehicles : a force in the fleet /

Steele, Melissa J. January 2004 (has links) (PDF)
Thesis (M.S. in Applied Science (Operations Research))--Naval Postgraduate School, June 2004. / Thesis advisor(s): Susan M. Sanchez. Includes bibliographical references (p. 79-80). Also available online.
19

Developmental flight testing of a half scale unmanned air vehicle

Salmons, James Dale. January 1990 (has links) (PDF)
Thesis (M.S. in Aeronautical Engineering)--Naval Postgraduate School, September 1990. / Thesis Advisor(s): Howard, Richard M. Second Reader: Pagenkopf, Eric L. "September 1990." Description based on title screen as viewed on December 18, 2009. DTIC Descriptor(s): Unmanned, Flight Testing, Angles, Steady State, Measurement, Vibration, Maneuverability, Marine Corps, Aircraft, Scale Models, Structural Properties, Tail Assemblies, Theses, Angle Of Attack, Estimates, Fuels, Endurance(General), Flight, Response, Scale, Weight, Airframes, Airspeed, Instrumentation, Recording Systems, Sideslip, Maneuvers, Behavior, Flow, Vehicles, Wings, Altitude, Failure(Mechanics), Radio Signals, Remote Control, Control Surfaces, Directional, Booms(Equipment), Propellers, Data Bases, Data Processing. DTIC Identifier(s): Remotely Piloted Vehicles, Unmanned Air Vehicles, Aerodynamic Control Surfaces, Aerodynamic Characteristics, Flight Testing, Pitch(Motion). Yaw, Flight Maneuvers, Theses. Includes bibliographical references (p. 55). Also available in print.
20

Intelligent approaches to mode transition control

Rufus, Freeman, Jr. 12 1900 (has links)
No description available.

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