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 11 of 11 for “"uncrewed aerial vehicles"”.
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Analysis of Sensing Technologies for Collision Avoidance for Small Rotary-Wing Uncrewed Aerial Vehicles
As UASs (Uncrewed Aerial System) are further integrated into operations, the need for on-board environmental perception and sensing is necessitated. An accurate and reliable creation of a 3D map resembling an aircraft's surrounding is crucial for accurate collision avoidance and path planning. …
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Development of low-thrust solid rocket motors for small, fast aircraft propulsion
Small, uncrewed aerial vehicles (UAVs) are expanding the capabilities of aircraft systems. However, a gap exists in the size and capability of aircraft: no small aircraft are capable of sustained fast flight. A small, fast aircraft requires a propulsion system which is both miniature and …
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Vision-Based Aerial Navigation Using Satellite Offline Maps
… as a self-contained GNSS substitute for small Uncrewed Aerial Vehicles (UAVs). It leverages offline satellite maps and an ensemble of Convolutional Neural Network (CNN) models to estimate 2D offsets and associated uncertainty for stable EKF fusion. The system is designed for seamless …
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Privacy Risk Mitigation Strategies for Drone Package Delivery
Uncrewed aerial vehicles (UAVs), or drones, are increasingly used to deliver goods. In an emerging business model, a drone operator partners with multiple businesses to offer drone delivery as a service. Due to regulations requiring drones to broadcast position information, this business model …
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Management and Analysis of Localization Information in Uncrewed Aerial Systems
… is a critical enabling function for autonomous uncrewed aerial vehicles (UAVs), particularly in environments where Global Navigation Satellite System (GNSS) signals are degraded or unavailable. This thesis investigates how 5G cellular networks - leveraging dense terrestrial infrastructure, …
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UAV-based investigations into the hydrology and dynamics of the Greenland Ice Sheet
… This thesis investigates the potential of Uncrewed Aerial Vehicles (UAVs) to provide intermediate-level observations of the interactions between ice sheet hydrology and dynamics at a fast-flowing, marine terminating glacier in West Greenland. I first describe the development of a low- cost …
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Incident Response Enhancements using Streamlined UAV Mission Planning, Imaging, and Object Detection
… tools are needed to facilitate adoption of Uncrewed Aerial Vehicles (UAVs) into incident response teams. Existing systems require operators to have highly skilled level of knowledge of UAV operations, including mission planning, low-level system operation, and data analysis. In this paper, a …
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Time Delay Mitigation in Aerial Telerobotic Operations Using Predictors and Predictive Displays
Semi-autonomous uncrewed aerial vehicles (UAVs) are telerobotic operations by definition where the UAV assumes the role of a telerobot and the human assumes the role of a supervisor. All telerobotic operations are susceptible to time delays due to communication, mechanical, and other constraints. …
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An Invariant Extended Kalman Filter for Indirect Wind Estimation Using a Small, Fixed-Wing Uncrewed Aerial Vehicle
… planning and control of small aircraft. Small uncrewed aerial vehicles (UAVs) are becoming an attractive platform for atmospheric sensing tasks as they offer increased maneuverability and are low-cost instruments when compared to traditional atmospheric sensing methods such as ground-based …
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Modeling and Control of Dual-Motored Tail-Sitting Flying Wing Using a Fuzzy Logic Pid Controller
… constraints of having a crewed cockpit, but uncrewed aerial vehicles, or UAVs, have opened a floodgate of potential design spaces that may be explored which were previously impossible. The hybrid vertical take-off and landing, VTOL, UAV is one aircraft that presents a potential solution to …
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Spatial Tools for Management of Protected Natural Areas: Case Studies in Camping Management and Trail Impact Assessment
… While technological advancements such as Uncrewed Aerial Vehicles (UAV) introduce Structure-from-Motion (SfM) capabilities for trail monitoring, they are not without limitations, including prohibitive costs, legal restrictions, and operational challenges, particularly when monitoring …