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 159 for “"Unmanned Aerial Vehicle (UAV)"”.
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Development and Evaluation of Unmanned Aerial Vehicle (UAV) Magnetometry Systems
… 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 compared to a model of …
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System design of an unmanned aerial vehicle (UAV) for marine environmental sensing
… use of autonomous surface and underwater vehicles for data collection in marine environmental sensing and modeling in coastal environments. However, these vehicles and their sensors still have limitations, especially when tasked with observing highly dynamic or transient processes. We …
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Unmanned Aerial Vehicle (UAV) navigation and image processing techniques for underground tunnel infrastructure assessment
… conventional inspections by workers and ground vehicles or robotics, Unmanned Aerial Vehicles (UAVs) emerge as a cost-effective and adaptive monitoring tool, particularly suited for the access to shafts and caverns. However, there are challenges in implementing UAV-based inspection for tunnels, …
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Design, manufacturing and testing of parachute recovery system for aludra SR-10 unmanned aerial vehicle (UAV)
Unmanned Systems Technology (UST) Aludra SR-10 Unmanned Aerial Vehicle (UAV) was purposely designed for survey and mapping mission. This study focuses on the design, manufacturing and testing of Parachute Recovery System (PRS) on the Aludra SR-10 UAV. A design work of PRS involving in defining a …
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Design methodologies and prototyping of a starter-geenrator for an unmanned aerial vehicle (UAV) for civil applications
… and use of uninhabited aircraft, in the form of UAVs (Unmanned Aerial Vehicle) has progressed quickly. An uninhabited aircraft is defined as the general term for UAV (Uninhabited Aerial Vehicle, Unmanned Aerial Vehicle), ROA (Remotely Operated Aircraft), and RPV (Remotely Piloted Vehicle), [1]. …
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A study of the role of an Unmanned Aerial Vehicle (UAV) in creating an Enhanced Virtual Field Guide (EVFG) in Geoscience Fieldwork
This thesis investigated the role of an Unmanned Aerial Vehicle (UAV) in the creation of an Enhanced Virtual Field Guide (EVFG) in Geoscience fieldwork. This research used a pragmatic mixed methods approach to investigate the research question “How can an Unmanned Aerial Vehicle’s data be used to …
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The development of a Radar Digital Unit for the SASARII project
… demonstrator SAR system for a spaceborne SAR and Unmanned Aerial Vehicle (UAV) imaging radar. The demonstrator system parameters, such as bandwidth, reflect the desired spaceborne SAR parameters.
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Development of an Quadcopter Unmanned Aerial Vehicle for Atmospheric Remote Sensing
… paper explores the development of a quadcopter unmanned aerial vehicle (UAV, a.k.a. drone) for atmospheric remote sensing of temperature, pressure, humidity, and PM2.5 particulate matter quantities. A 3-D printed drone body is designed and flight tuning is performed. An optimal length for an …
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Autonomous Landing of a Rotary Unmanned Aerial Vehicle in a Non-cooperative Environment using Machine Vision
Landing an Unmanned Aerial Vehicle (UAV) is a non-trivial problem. Removing the ability to cooperate with the landing site further increases the complexity. This thesis develops a multi-stage process that allows a UAV to locate the safest landing site, and then land without a georeference. Machine …
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Hardware & software architecture for multi-level unmanned autonomous vehicle design
… and construction of a radically new type of unmanned aerial vehicle (UAV) are discussed. The vehicle architecture is based on a commercially available non-autonomous flyer called the Vectron Blackhawk Flying Saucer. Due to its full body rotation, the craft is more inherently gyroscopically …
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UAV collision avoidance: a specific acceleration matching approach
… level of autonomy is required for future Unmanned Aerial Vehicle (UAV) missions. One of the technologies required for this to occur is an adequate sense and avoid system to enable the UAV to detect threat aircraft and take evasive action if required. This thesis investigates a collision …
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Assessing multi-rotor UAV controllability in low altitude fine-scale wind fields
This study presents a means of assessing unmanned aerial vehicle (UAV) control in various environments using control margin. The metric gives an instantaneous measure of control authority and is defined by dividing required torque by maximum available torque. Required torque is the sum total of …
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Design and Development of Low-cost Multi-function UAV Suitable for Production and Operation in Low Resource Environments
… new flying wing design has been developed at the Unmanned Systems Lab (USL) at Virginia Tech to serve delivery and remote sensing applications in the developing world. The fully autonomous unmanned aerial vehicle (UAV), named EcoSoar, was designed with the goal of creating a business opportunity …
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SHVIL, PLANWELL, & FLYING FRUSTUM: Spatial Interaction With 3D Physical Maps
… navigation, petroleum-well planning, and remote unmanned aerial vehicle (UAV) control. We present our research, encompassing three prototypes we designed and implemented: Shvil, an augmented reality interface for collaborative terrain navigation; PlanWell, a spatial user interface for …
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Embedded avionics with Kalman state estimation for a novel micro-scale unmanned aerial vehicle
… is developed for deployment to a micro-scale unmanned aerial vehicle (UAV). The capabilities, limitations, and requirements of existing navigation solutions motivate the need for an integrated solution that can be readily applied to small embedded systems and still provide reasonably accurate …
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Linear Parameter Varying Path Following Control of a Small Fixed Wing Unmanned Aerial Vehicle
… to implement the resulting controllers on the unmanned aerial vehicle (UAV) testbed in the Nonlinear Systems Laboratory at Virginia Tech.
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Intra-field Nitrogen Estimation for Wheat and Corn using Unmanned Aerial Vehicle-based and Satellite Multispectral Imagery, Plant Biophysical Variables, Field Properties, and Machine Learning Methods
… The objective of this study is to use Unmanned Aerial Vehicle (UAV) multispectral imagery, PlanetScope satellite imagery, vegetation indices (VI), crop height, leaf area index (LAI), field topographic metrics, and soil properties to predict canopy nitrogen weight (g/m2) of corn and …
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Landscape and Mechanistic Approaches to Describing Milkweed Habitat and Drought Tolerance and the Implications for Western Monarch Butterflies
… face of anthropogenic stressors. We utilized an unmanned aerial vehicle (UAV) remote sensing method along with the machine learning model you only look once (YOLO) to map floral habitat. We focused on detecting two milkweed species, narrowleaf milkweed (Asclepias fascicularis), and showy milkweed …
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Autonomous UAV-UGV robot collaboration for exploration and mapping of unknown environments
… of unknown environments that use multiple Unmanned Ground Vehicles (UGVs). An Unmanned Aerial Vehicle (UAV) is introduced into the multirobot system to overcome the challenges of relative localization and obstacle detection. A novel method is proposed for autonomously determining the UGVs’ …
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Evaluation of the UAV-Based Multispectral Imagery and Its Application for Crop Intra-Field Nitrogen Monitoring and Yield Prediction in Ontario
Unmanned Aerial Vehicle (UAV) has the capability of acquiring high spatial and temporal resolution images. This new technology fills the data gap between satellite and ground survey in agriculture. In addition, UAV-based crop monitoring and methods are new challenge of remote sensing application in …
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