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Articles 1 - 5 of 5
Full-Text Articles in Navigation, Guidance, Control and Dynamics
Conceptual Design Of A South Pole Carrier Pigeon Uav, Kendrick M. Dlima
Conceptual Design Of A South Pole Carrier Pigeon Uav, Kendrick M. Dlima
Master's Theses
Currently, the South Pole has a large data problem. It is estimated that 1.2 TB of data is being produced every day, but less than 500 GB of that data is being uploaded via aging satellites to researchers in other parts of the world. This requires those at the South Pole to analyze the data and carefully select the parts to send, possibly missing out on vital scientific information. The South Pole Carrier Pigeon will look to bridge this data gap.
The Carrier Pigeon will be a small unmanned aerial vehicle that will carry a 30 TB solid-state hard drive …
Uav Formation Flight Utilizing A Low Cost, Open Source Configuration, Christian W. Lopez
Uav Formation Flight Utilizing A Low Cost, Open Source Configuration, Christian W. Lopez
Master's Theses
The control of multiple unmanned aerial vehicles (UAVs) in a swarm or cooperative team scenario has been a topic of great interest for well over a decade, growing steadily with the advancements in UAV technologies. In the academic community, a majority of the studies conducted rely on simulation to test developed control strategies, with only a few institutions known to have nurtured the infrastructure required to propel multiple UAV control studies beyond simulation and into experimental testing. With the Cal Poly UAV FLOC Project, such an infrastructure was created, paving the way for future experimentation with multiple UAV control systems. …
Flying Qualities Built-In-Test For Unmanned Aerial Systems, Alton Pak-Hin Chiu
Flying Qualities Built-In-Test For Unmanned Aerial Systems, Alton Pak-Hin Chiu
Master's Theses
This paper presents a flying qualities built-in-test for UAS application with the scope limited to the longitudinal axis. A doublet input waveform excites the AV and both α and q are used by EUDKF to estimate the A and B matrices which are short period approximations of the system. ζ, ω, GM, PM, observability, and controllability are calculated to determine flying qualities with the results displayed to the AVO in a color-coded, easy to interpret display.
While SID algorithms have been flying in vehicles with adaptive control schemes, vehicles with other schemes (such as classical feedback) lack this built-in self …
Nonlinear Uav Flight Control Using Command Filtered Backstepping, Brian M. Borra
Nonlinear Uav Flight Control Using Command Filtered Backstepping, Brian M. Borra
Master's Theses
The aim of this effort is to implement a nonlinear flight control architecture, specifically flight path control via command filtered backstepping, for use in AME UAS's Fury® 1500 unmanned flying wing aircraft. Backstepping is a recursive, control-effort minimizing, constructive design procedure that interlaces the choice of a Lyapunov function with the design of feedback control. It allows the use of certain plant states to act as intermediate, virtual controls, for others breaking complex high order systems into a sequence of simpler lower-order design tasks.
Work herein is a simplified implementation based on publications by Farrell, Sharma, and Polycarpou. Online approximation …
Application Of Parent-Child Uav Tasking For Wildfire Detection And Response, Stephen T. Kubik
Application Of Parent-Child Uav Tasking For Wildfire Detection And Response, Stephen T. Kubik
Master's Theses
In recent years, unmanned aerial vehicles (UAVs) have become a dominant force in the aerospace industry. Recent technological developments have moved these aircraft from remote operation roles to more active response missions. Of particular interest is the possibility of applying UAVs toward solving complex problems in long-endurance missions. Under that belief, the feasibility of utilizing UAVs for wildfire detection and response was investigated in a partnership that included NASA’s Aeronautics Research Mission Directorate and Science Mission Directorate, and the United States Forest Service. Under NASA’s Intelligent Mission Management (IMM) project, research was conducted to develop a mission architecture that would …