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 129 for “"Unmanned Aircraft"”.
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Avionics systems development for small unmanned aircraft
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1998.
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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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Congested Airspace Routing Analysis of Commercial Unmanned Aircraft Systems
… and regulatory criteria for commercial unmanned aircraft systems in congested airspace sectors through analysis of several routing options utilizing flight simulation technology and logical analysis. Commercial unmanned aircraft systems will require a discrete set of operating rules and …
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Pilot’s Willingness to Operate in Unmanned Aircraft System Integrated Airspace
<p>The interest in Unmanned Aircraft Systems (UAS) use for private, civil, and commercial purposes such as package delivery, inspection, surveillance, and passenger and cargo transport has gained considerable momentum. As UAS infiltrate the National Airspace System (NAS), there is a need to not …
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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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Advancing Vegetation Monitoring Strategies in Arid Ecosystems Using Unmanned Aircraft Systems
… have heterogeneous species and soil composition. Unmanned Aircraft Systems (UAS) offer centimeter-scale spatial resolution and flexible deployment that can better address the scale of these communities. This work explores two complementary approaches for integrating UAS into scalable and adaptable …
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In-Flight Learning Based Flight Control of an Unmanned Aircraft System
Unmanned Aerial Vehicles (UAVs) popularity has increased substantially in the last few years. UAVs capabilities continue to improve as a result of advances in battery technology, communication, navigation systems and electronics. Increased popularity has driven researchers to improve UAVs …
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Pilot Skills and Aerodynamic Knowledge for Operating Smaller Unmanned Aircraft Systems
… knowledge necessary to operate smaller unmanned aircraft systems (UAS). Unmanned aircraft (UA) have been utilized successfully in the U.S. military for more than 20 years. Currently there is significant interest in integrating UAs into the National Airspace System (NAS) for government …
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Virus constructed iron phosphate lithium ion batteries in unmanned aircraft systems
… with electronic devices. Today, battery powered Unmanned Aerial Systems (UAS) the size of a model plane such as the Raven allow soldiers to see dangerous situations and potential threats without ever needing to enter the area and put their lives in danger. This technology is saving lives and …
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Understanding the effect of cognitive reference frames on unmanned aircraft operations
… airborne resources transition from manned to unmanned aircraft (UA) the issues associated with unmanned aircraft operations become more and more important. This study seeks to understand the difficulties associated with controlling both the unmanned aircraft and an onboard video sensor. …
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Dynamic mission planning for communication control in multiple unmanned aircraft teams
… continue to progress, teams of multiple unmanned aerial vehicles will play an increasingly important role in civilian and military applications. A multi-UAV system relies on communications to operate. Failure to communicate remotely sensed mission data to the base may render the system …
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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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Modeling and Control of an Active Dihedral Fixed-Wing Unmanned Aircraft
Unmanned aircraft systems (UAS) often encounter turbulent fields that perturb the aircraft from its desired target trajectory, or in a manner that increases the load factor. The aircraft's fixed dihedral angle, providing passive roll-stiffness, is often selected based on lateral-directional …
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On the Security and Reliability of Fixed-Wing Unmanned Aircraft Systems
… the security and reliability of fixed-wing unmanned aircraft systems (UAS). Specifically, we focus on three strands of work: i) designing UAS controllers with performance guarantees using the robust control framework, ii) developing tools for detection and mitigation of physical-layer …
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Visual Detection of Small Unmanned Aircraft: Modeling the Limits of Human Pilots
… variables for visual detection of small, Unmanned Aircraft Systems (UAS), and to learn how these variables influence the ability of human pilots, in manned-aircraft operating between 60-knots to 160-knots in the airport terminal area, to see these small, unmanned aircraft in time to avoid …
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Geologic Face Mapping Methodology Utilizing Global Positioning Systems and Unmanned Aircraft Systems
… 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 greater volumes …
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Value proposition analysis for medium- and heavy- lift cargo unmanned aircraft systems
The majority of current unmanned aircraft system (UAS) research is focusing on small UAS operations at low altitude over rural and underpopulated areas. There is a gap in research about UAS greater than 55 pounds. The first unmanned aircraft to operate in this airspace is likely to be unmanned air …
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Real-Time Roadway Mapping and Ground Robotic Path Planning Via Unmanned Aircraft
The thesis details the development of computer vision and path planning algorithms in order to map an area via UAV aerial imagery and aid a UGV in navigating a roadway when the road conditions are not previously known (i.e. disaster situations). Feature detection was used for transform calculation …
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Monitoring and Preventing Data Exfiltration in Android-hosted Unmanned Aircraft System Applications
… applications are now being used to control unmanned aircraft systems (UAS) making smartphones the storehouse for all the data that is generated by the UAS. This data can be sensitive in nature which puts the user at the risk of data exfiltration. As most Android-hosted UAS applications are …
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On Integral Quadratic Constraint Theory and Robust Control of Unmanned Aircraft Systems
… advances tools for the certification of unmanned aircraft system (UAS) flight controllers. We develop two thrusts to this goal: (1) the validation and improvement of an uncertain UAS framework based on integral quadratic constraint (IQC) theory and (2) the development of novel IQC …
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