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 36 for “"Unmanned aircraft systems (UAS)"”.
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Application of multiple unmanned aircraft systems (UAS) for bushfire mitigation
… response services rely on watchtowers, manned aircraft and satellite data for information. Advances in technology such as the development of sense-and-avoid systems will soon allow Unmanned Aircraft Systems (UAS) to be flown alongside manned aircraft in non-segregated airspace. This research …
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Enabling Autonomy in Commercial Aviation: An Ontology and Framework for Automating Unmanned Aircraft Systems (UAS)
… and more. However, these increasingly autonomous systems come with increasingly numerous and complex inputs that software must handle. This limitless set of inputs must ensure that autonomous system decisions will translate to operations that are safe for the general public. This thesis …
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Considerations for domestic law enforcement implementation of a UAS program in the proposed FAA regulatory environment of integration into the national airspace system
… the potential future mission profile of an unmanned aircraft systems (UAS) program within a domestic law enforcement agency after implementation of UAS regulations, a task currently in progress by the Federal Aviation Administration (FAA). First, the author reviews current academic …
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An Evaluation of Unmanned Aircraft Systems' Ability to Assess Stripe Rust in Large Wheat Breeding Nursies
… of control. High-throughput phenotyping using unmanned aircraft systems (UAS) offers a potentially more efficient method for field-based phenotyping compared to visual assessment. Here we tested the ability of remote sensing to predict stripe rust severity in a diverse population of 594 soft …
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Advancing Vegetation Monitoring Strategies in Arid Ecosystems Using Unmanned Aircraft Systems
Arid ecosystems present unique challenges for environmental monitoring using remotely sensed data because vegetation communities in drylands are often sparsely distributed and have heterogeneous species and soil composition. Unmanned Aircraft Systems (UAS) offer centimeter-scale spatial resolution …
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Multirotor UAS Sense and Avoid with Sensor Fusion
… the key concepts of independent autonomous Unmanned Aircraft Systems (UAS) are explored including obstacle detection, dynamic obstacle state estimation, and avoidance strategy. This area is explored in pursuit of determining the viability of UAS Sense and Avoid (SAA) in static and dynamic …
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A System Architecture for Phased Development of Remote sUAS Operation
… require the remote pilot-in-command of an unmanned aircraft systems (UAS) to maintain visual line of sight with the vehicle for situational awareness. The future of UAS will not have these constraints as technology improves and regulations are changed. An operational model for the future of …
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RADAR Based Collision Avoidance for Unmanned Aircraft Systems
<p>Unmanned Aircraft Systems (UAS) have become increasingly prevalent and will represent an increasing percentage of all aviation. These unmanned aircraft are available in a wide range of sizes and capabilities and can be used for a multitude of civilian and military applications. However, as the …
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Deriving safety constraints for integration of unmanned aircraft systems into the national airspace by application of STECA
Unmanned aircraft systems (UAS) have been used for years especially in the military. However, the operation of UAS in civil aviation has been limited since there are a lot of uncertainties: a regulatory scheme needs to be established and associated technologies need to be developed. This thesis …
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Effect of Time Pressure and Task Uncertainty on Human Operator Performance and Workload for Autonomous Aerial Vehicle Missions
<p>Unmanned aircraft systems (UAS) are being utilized at an increasing rate for a number of military applications. The potential for their use in the national airspace is also of interest to the Federal Aviation Administration, but there are some concerns about the safety of flying unmanned …
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Integrating military unmanned aircraft into the national airspace system : an application of value-focused thinking and enterprise architecting
… architectures for the challenge of integrating Unmanned Aircraft Systems (UAS) in the national airspace system (NAS). Thesis organization is sub-divided into four sections. Section I provides the introduction, context, and recent efforts of the UAS airspace integration challenge and the …
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Applying technology strategy with enterprise architecting : a case study in transformation planning for integrating Unmanned Aircraft Systems into the National Airspace
… appropriate solutions for integrating Unmanned Aircraft Systems (UAS) into the National Airspace System (NAS). The thesis is organized into four sections. Section 1 introduces the strategic background, enterprise description, definitions of key terms, and the issues and interest …
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STPA Hazard Analysis of Human Supervisory Control of Multiple Unmanned Aerials Systems
Unmanned Aircraft Systems (UAS) operations are shifting from multiple operators controlling a single-UAS to a single operator supervising multiple-UAS engaged in complex mission sets. To enable this paradigm change, there is wide consensus in the literature that limitations in human cognitive …
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Small UAV Trajcetory Prediction and Avoidance using Monocular Computer Vision
Small unmanned aircraft systems (UAS) must be able to detect and avoid conflicting traffic, an especially challenging task when the threat is another small UAS. Collision avoidance requires trajectory prediction and the performance of a collision avoidance system can be improved by extending the …
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Tailoring an Airworthiness Document to Unmanned Aircraft Systems: A Case Study of MIL-HDBK-516C
With the popularity of unmanned aircraft systems (UAS), there is a growing need to assess airworthiness for safe operations in shared airspace. In the context of this thesis, shared airspace implies the introduction of UAS into airspace designated for manned aircraft. Airworthiness guidelines are …
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Geologic Face Mapping Methodology Utilizing Global Positioning Systems and Unmanned Aircraft Systems
… area. Advancements in Global Positioning Systems (GPS), Unmanned Aircraft Systems (UAS), and software packages offer new tools and techniques for collecting high volume, accurate geologic information. These tools can provide geologists with safe and efficient ways to collect and process …
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Distributed Control Of Multi-Agent Systems Using Biologically-Inspired Reinforcement Learning
… the real-time flocking control of Multi-Agent Systems (MAS) in presence of system uncertainties and dynamic environment. To handle the impacts from system uncertainties and dynamic environment, a novel reinforcement learning technique, which is appropriate for real-time implementation, has been …
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Real-time maneuvering decisions for autonomous air combat
Unmanned Aircraft Systems (UAS) have the potential to perform many of the complex and possibly dangerous missions currently flown by manned aircraft. Within visual range air combat is an extremely difficult and dynamic aerial task which presents many challenges for an autonomous UAS. An agile, …
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Towards Detecting Atmospheric Coherent Structures using Small Fixed-Wing Unmanned Aircraft
… are developed for utilizing small fixed-wing unmanned aircraft systems (UAS) in detecting these atmospheric coherent structures. The dissertation begins by presenting relevant literature on both LCS and airborne wind estimation. Because model-based wind estimation inherently depends on high …
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Development of a Peripheral-Central Vision System to Detect and Characterize Airborne Threats
With the rapid proliferation of small unmanned aircraft systems (UAS), the risk of mid-air collisions is growing, as is the risk associated with the malicious use of these systems. The airborne detect-and-avoid (ABDAA) problem and the counter-UAS problem have similar sensing requirements for …
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