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 12 of 12 for “"Autonomous Guidance"”.
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Autonomous guidance and decision-making for planetary aerobraking
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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The autonomous guidance, navigation, and control laboratory at the University of Texas at Austin
… the design, construction, and contents of the Autonomous Guidance, Navigation, and Control Laboratory (AGNC Lab) for Dr. Behcet Acikmese at the University of Texas. It is intended as a resource for those who are new to the lab or to one of its systems. The lab was created to test --- on …
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System level dispersion analysis examining program benefits to a low-thrust interplanetary CubeSat from autonomous guidance and navigation
… was performed to quantify the effects of the guidance and navigation (GN) system on trajectory dispersions for a low-thrust CubeSat in route to entry-interface conditions at Mars. Applicable mission plan concepts, appropriate analysis settings, as well as required mission performance used in …
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Adaptive Extended Kalman Filtering Strategies for Autonomous Relative Navigation of Formation Flying Spacecraft
To enhance the capabilities of onboard autonomous guidance, navigation and control systems, this thesis presents the development of two adaptive extended Kalman filter navigation algorithms for spacecraft formation flying. The proposed adaptive filters are capable of updating the internal noise …
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Autonomous data collection techniques for approximating marine vehicle kinematics
… vehicle kinematics is essential in allowing autonomous guidance algorithms to accurately assess short range encounters. Low cost, reconfigurable autonomous vehicles motivate using in-field online techniques rather than tow tank testing or Computational Fluid Dynamics (CFD). While the …
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A new guidance trajectory generation algorithm for unmanned systems incorporating vehicle dynamics and constraints
… a new trajectory generation algorithm for autonomous guidance and control of unmanned vehicles from a given starting point to a given target location. We build and update incomplete a priori maps of the operating environment in real time using onboard sensors and compute level sets on the …
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Modeling and Simulation of Autonomous Thermal Soaring with Horizon Simulation Framework
… Researchers had successfully flown UAVs autonomously with thermal soaring method. Most research involved some form of flight simulation. Improvements to the aircraft and thermal models for simulation purpose would enable researchers to better design their UAVs and explore any potential …
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Low-thrust Spacecraft guidance and control using proximal policy optimization
… future spacecraft will be required to possess autonomous guidance and control in the complex, nonlinear dynamical regimes of cis-lunar space. In the realm of trajectory design, current methods struggle with local minima, and searching large solutions spaces. This thesis investigates the use of …
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Guidance and Control System for VTOL UAVs operating in Contested Environments
… presents the initial components of an integrated guidance, navigation, and control system for vertical take-off and landing (VTOL) autonomous unmanned aerial vehicles (UAVs) such that they may map complex environments that may be hostile. The first part of this thesis presents an autonomous …
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Design and integration of a three degrees-of freedom robotic vehicle with control moment gyro for the Autonomous Multiagent Physically Interacting Spacecraft (AMPHIS) testbed
… Spacecraft Robotics Laboratory, to simulate autonomous guidance, navigation and control (GNC) for spacecraft proximity operations and assembly within the framework of the Autonomous Multi-Agent Physically Interacting Spacecraft project. The new spacecraft simulator includes several key …
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Vision Based Guidance and Flight Control in Problems of Aerial Tracking
… in providing the necessary information for the autonomous guidance and navigation of the unmanned-air vehicles (UAV) or micro-air vehicles (MAV) applications is inspired by biological systems and is motivated first of all by the reduction of the navigational sensor cost. Also, visual sensors can …
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Robust Spacecraft Autonomy for Deep Space Exploration in Special Euclidean Group SE(3)
… requirement.</p> <p>Legacy deep-space guidance, control and navigation (GN&C) methods, which rely heavily on ground-based sequencing schemes, are intolerant to unplanned events or off-nominal scenarios. Some examples of these include the Mars Climate Orbiter, which plunged to its …