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 34 for “"mission performance"”.
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OPTIMIZING AFTER-ACTION REPORTS IN AIR FORCE CONTRACTING: ENHANCING OPERATIONAL INSIGHTS AND FUTURE MISSION PERFORMANCE
… and apply operational insights for improved mission performance. The hypothesis posits that a structured, stakeholder-driven approach to AARs can address gaps and provide actionable outcomes that enhance readiness and adaptability in a dynamic threat environment. Using the …
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Exploring Trade-offs and Emergent Properties of Heterogeneous Swarms of Maritime Robot Systems through Empirical Analysis and Application-Driven Experiments
… agent behavior or capabilities could enhance mission performance, but the trade-offs involved are not thoroughly understood beyond trivial outcomes like adjusting agent speed. In this thesis, a novel swarming approach is used to tackle two core missions: dynamic target searching and tracking, …
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Interdependent Mission Impact Assessment of an IoT System with Hypergame-Theoretic Attack-Defense Behavior Modeling
Mission impact assessment (MIA) research has been explored to evaluate the performance and effectiveness of a mission system, such as enterprise networks with organizational missions and military or tactical mission teams with assigned missions. The key components in such mission systems, including …
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Design methods for cost-effective teams of mobile robots in uncertain terrain
Conducting planetary exploration missions with mobile robots is expensive, with costs ranging from hundreds of millions to billions of dollars. Developing reliable robots to work remotely on rough, uncertain terrain is imperative for these missions. One potential tactic for improving the …
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Health Management and Adaptive Control of Distributed Spacecraft Systems
<p>As the development of challenging missions like on-orbit construction and collaborative inspection that involve multi-spacecraft systems increases, the requirements needed to improve post-failure safety to maintain the mission performance also increases, especially when operating under uncertain …
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Approaches to optimal inertial instrument calibration using slewing
… important to the success of accuracy-sensitive missions. This thesis analyzes calibration techniques for two inertial measurement mechanizations: (1) an inertially stabilized system and (2) an inertially referenced slew. An inertially referenced slew rotates the inertial measurement unit with …
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Combined Aircraft and Payload Design Optimization Using a Multidisciplinary Architecture
… further complicated by the analysis of payload performance. Depending on the subsystem being considered, extensive modeling efforts may be required. Unintuitive performance tradeoffs can also become inherent to a design when multiple subsystems are considered simultaneously. To support the …
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Multiobjective collaborative optimization of systems of systems
… for warship designs typically focus on ship performance characteristics by setting design goals for such things as speed, range, and cost. However, warships generally operate as part of a larger battle or strike group. Therefore, the designs should be evaluated as part of a system of multiple …
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A historical perspective of aircrew systems effects on aircraft design
… is how well the aircrew can use the aircraft for mission performance. NAVAIR has been seeking the establishment of an Aircrew Centered System Design discipline, to be addressed as an integral part of the global aircraft system design process. A baseline, historical understanding of how the aircrew …
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The Effects of Sensor Performance as Modeled by Signal Detection Theory on the Performance of Reinforcement Learning in a Target Acquisition Task
… their past experiences to increase their future mission performance. To achieve adaptive behavior and decision making capabilities this study used Reinforcement Learning algorithms. In this research the effects of sensor performance, as modeled through Signal Detection Theory (SDT), on the …
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The Effects of Rewards on the Ability of an Autonomous UAV Controlled by a Reinforcement Learning Agent to Accomplish a Target Localization Task
… to use past experiences to improve future mission performance. In this research, the effects of rewards on the ability of an autonomous UAV controlled by a Reinforcement Learning agent to accomplish a target localization task were investigated. The numerical values of the reward scheme were …
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Multiple UAV Cooperation For Wildfire Monitoring
… the proposed method allows a wildfire monitoring mission to benefit from on-line information updating, increased flexibility, and accurate estimation. An independent wildfire simulator is utilized to verify the effectiveness of the proposed method. Second, based on the filter analysis, wildfire …
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A tilt rotor UAV for long endurance operations in remote environments
Extended mission times will greatly expand the utility of small UAVs that are currently limited to a single flight lasting no more than a few hours. This thesis assesses the challenges to developing a small, long endurance UAV and presents a preliminary vehicle and controller design for a tiltrotor …
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Robust distributed planning strategies for autonomous multi-agent teams
… vehicles (UAVs) and ground rovers, for complex missions has motivated the development of autonomous task allocation and planning methods that ensure spatial and temporal coordination for teams of cooperating agents. The basic problem can be formulated as a combinatorial optimization …
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System level dispersion analysis examining program benefits to a low-thrust interplanetary CubeSat from autonomous guidance and navigation
… deep space programs because higher priority missions will take precedence for access to the limited and expensive DSN resource. Consequently, to make the most of CubeSats in deep space, dependence on the ground must be minimized. In this research a closed-loop Linear Covariance (LinCov) …
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Multiobjective collaborative optimization of systems of systems
… for warship designs typically focus on ship performance characteristics by setting design goals for such things as speed, range, and cost. However, warships generally operate as part of a larger battle or strike group. Therefore, the designs should be evaluated as part of a system of multiple …
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Feasibility Study of a Multi-Purpose Aircraft Concept with a Leading-Edge Cross-Flow Fan
… Landing (ESTOL) aircraft. The wing-embedded CFF performance analysis is mostly addressed from an aerodynamic perspective and focuses on using such AFC technology in the conceptual aircraft design process. In particular, the design trade study of an aircraft featuring CFF as a high-lift device …
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Rapidly Estimating Swarm Resource Needs Through Autonomous Simulation
… implements two resource-aware multi-robot patrol missions in MOOS-IvP. In each mission, vehicles perpetually patrol a grid and must periodically break patrol formation to refuel at a depot. Missions measure their performance based on how frequently robots visit each portion of the mission …
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A systems analysis of tactical intelligence in the US Army
This thesis explores drivers of mission performance outcomes through dynamics associated with intelligence and operational processes. System dynamics methodology can provide a foundation for exploration of these processes within the intelligence cycle. In the Army's current structure, intelligence …
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Advanced four-dimensional trajectory generation for tactical guidance of unmanned aerial vehicles
… The demonstration of a basic aircraft performance model (APM) serves to illustrate the used of dynamic non-linear constraints, allowing for improved utilisation of the flight envelope. The computational advantages of using splines is shown by presenting an extensive collection of …
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