Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 347 for “"aerial vehicle"”.
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Design of a unmanned aerial vehicle
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1998.
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Research on the Unmanned Aerial Vehicle Design
… is to understand the dynamics and control of the vehicle when transiting from vertical take-off to horizontal cruising mode. Both computational results and experimental measurements of the aerodynamic forces show that the axis symmetric craft has asymmetric aerodynamic properties caused by …
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Map-Based Localization for Unmanned Aerial Vehicle Navigation
Unmanned Aerial Vehicles (UAVs) require precise pose estimation when navigating in indoor and GNSS-denied / GNSS-degraded outdoor environments. The possibility of crashing in these environments is high, as spaces are confined, with many moving obstacles. There are many solutions for localization in …
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Autonomous unmanned aerial vehicle for non-destructive testing
Unmanned Aerial Vehicles (UAVs) are receiving increasing attention for use in Non-Destructive Testing / Evaluation (NDT / NDE), due to affordability, safety, and the ability to access areas where manned inspection is not practical. The mobility and size of UAVs offer the flexibility to quickly …
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Autonomous quadrotor unmanned aerial vehicle for culvert inspection
… work done to lay the foundation for an Unmanned Aerial Vehicle (UAV) system for inspecting culverts. By expanding upon prior progress creating an autonomous indoor quadrotor, many basic hardware and software issues are solved. The main new functionality needed for the culvert inspection task was …
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Collaborative Micro Aerial Vehicle exploration of outdoor environments
… Recent efforts have led to the creation of Micro Aerial Vehicles (MAVs), a class of Unmanned Aerial Vehicle (UAV), which are small and have autonomous capabilities. At most a few feet in size, a MAV can hover in place, perform Vertical Take-Off and Landing, and easily rotate with a small sensor …
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Adaptive Learning Terrain Estimation for Unmanned Aerial Vehicle Applications
… like Octomap and Quadtrees. Since flight vehicles have different constraints, ground-based terrain mapping research may not be directly applicable to the aerospace industry. To address this issue, Adaptive Learning Terrain Estimation algorithms have been developed with an aim towards …
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Strain Gauge Utilization for Aerial Vehicle Dynamic Load Measurement
… aerodynamic decelerator system and an unmanned aerial vehicle. This thesis has three main objectives: (1)develop and evaluate test a circular parachute strain gauge-based load distribution measurement system, (2) develop and evaluate a strain gauge thrust estimation system for a quadrotor …
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Detection and Analysis Methods for unmanned aerial Vehicle Images
Unmanned Aerial Vehicles (UAVs), commonly known as drones, are aerial platforms that are gaining large popularity in the remote sensing field. UAVs derive from military technology, but in the last few years they are establishing as reference platforms also for civilian tasks. The main advantage of …
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Design and manufacturing of a VTOL Micro Aerial Vehicle
… The opportunity now exists to develop miniature aerial vehicles capable of autonomous flight. Such vehicles could perform reconnaissance missions in environments that are unsafe to humans. Their small size minimizes their chance of being detected in hostile areas and allows them mobility not …
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Natural language processing for unmanned aerial vehicle guidance interfaces
… processing techniques to the control of unmanned aerial vehicles (UAVs) are addressed. The problem of controlling an unmanned aircraft via natural language inputs is formulated as a feedback control problem, and notions of state, controllability, and observability are defined under this model. An …
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Aerodynamic study of a small, ducted VTOL aerial vehicle
The Perching Unmanned Aerial Vehicle (PUAV) is a 9-inch diameter ducted vertical takeoff and landing reconnaissance vehicle with the capability of fast-forward cruise flight. Currently in the development stage, the program is envisaged to yield a man-portable craft that a foot soldier can use to …
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Self-Reconfigurable Unmanned Aerial Vehicle Networks for Wireless Communication Provisioning
Unmanned Aerial Vehicles (UAVs) have numerous applications and profound research potential. They can form an aerial network and effectively act as access points to serve users. In disaster-hit areas, providing communication through infrastructure is impossible due to either time constraints or …
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Development and Evaluation of Unmanned Aerial Vehicle (UAV) Magnetometry Systems
In this thesis, the procedure of conducting magnetic surveys from a UAV platform is investigated. In the process of evaluating UAVs for such surveys, magnetic sensors capable of operating on a UAV platform were tested using a terrestrial survey, as well as on a UAV-platform. Results were then …
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Hydrodynamic Impact Analysis and Testing of an Unmanned Aerial Vehicle
<p>Analysis and testing have been conducted to assess the feasibility of a small UAV that can be landed in the water and recovered for continued use. Water landings may be desirable in a number of situations, for example when testing UAVs outside of the territorial waters of the US to avoid …
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Autonomous model selection for surface classification via unmanned aerial vehicle
… collects the data using an Unmanned Aerial Vehicle (UAV), extracts features, trains a large number of classifiers, selects the best classifier, and programs the UAV with that classifier. We design this system with user configurable parameters for choosing a high accuracy, efficient …
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Development of a Miniature VTOL Tail-Sitter Unmanned Aerial Vehicle
… Take-Off and Landing (VTOL) tail-sitter Unmanned Aerial Vehicle (UAV) prototype is presented in detail. Classic aircraft design methods were combined with numerical analysis to estimate the aircraft performance and flight characteristics. The numerical analysis employed a propeller blade-element …
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Three tier unmanned aerial vehicle : strategic roles and mechanical design
… design elements of a three-tier unmanned aerial vehicle prototype being developed by the MIT/Draper Technology Partnership. This parent-child concept incorporates three classes of Unmanned Aerial Vehicles (UAVs). A parent vehicle of 3.4-meter wingspan is maintained at the mother level …
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