Browsing by Author "Cicci, David"

Now showing items 1-16 of 16

Angles-Only Initial Relative-Orbit Determination via Successive Maneuvers

Hebert, Laura (2016-04-29)

For relative-orbit determination using linear, Cartesian dynamics, angles-only measurements are not sufficient. A known, impulsive maneuver performed by either the observer or resident space object can provide observability. ...

Design of a Guidance Controller Using Network Topology

Robertson, Clay (2016-08-05)

In dynamic environments, the control of a formation of unmanned vehicles remains a significant control problem on both network and guidance dynamics levels. Currently, formations of unmanned vehicles require multiple ground ...

Development and Implementation of a Trajectory Prediction Methodology

Robertson, Clay Jackson (2012-04-16)

Operation of unmanned aircraft in the United States' National Airspace System (NAS) is currently severely restricted, primarily due to the need to ensure adequate separation between manned and unmanned aircraft (UA). A ...

Effect of Coordinate Switching on Simulation Accuracy of Translunar Trajectories

Vautier, Mana (2008-08-15)

This thesis focuses on the effect of round-off error in the accurate simulation of translunar trajectories. The three-body dynamics can be posed in either an Earth-centered (EC) or Moon-centered (MC) frame. In this study, ...

Effects of Rotational Motion on the Ballistic Coefficient of Space Debris

Walsh, Thomas (2012-05-09)

Accurate predication of the future states of operational spacecraft and space debris are necessary for conjunctional analysis. Prediction of the states of debris for a few orbital periods is possible with improved models ...

Identification of a Tethered Satellite Using an Extended Kalman Filter

Volovecky, Elizabeth (2007-12-15)

Recent studies involving a tethered satellite system(s) (TSS) have increased due to the importance of accurately identifying and analyzing the motion of a TSS. If the motion of a tethered satellite is not accurately ...

Investigation of Plasma Detachment from a Magnetic Nozzle

Chancery, William (2007-08-15)

The Variable Specific Impulse Magnetoplasma Rocket (VASIMR) electric space propulsion concept currently under development by the Ad Astra Rocket Company utilizes a magnetic field to confine a propellant plasma. The energetic ...

Nonlinear Tracking of Natural Mechanical Systems for HWIL Simulation

Martin, Justin (2007-08-15)

Auburn University has entered into collaboration with the US Department of Defense for academic study and development of hardware-in-the-loop simulation laboratory. One aspect of this collaboration has been research into ...

Performance Comparison of an Extended Kalman Filter and an Iterated Extended Kalman Filter for Orbit Determination of Space Debris with Poor Apriori Information and Intermittent Observations

Hicks, Jimmy, Jr. (2012-11-06)

The growing space debris population threatens active and future missions bound for low earth orbit. The purpose of this study is to determine if an iterated extended Kalman filter (IEKF) can be used to yield better ...

A Predictive Autorotation Entry Analysis Using Bayesian Multi-Model Estimation Detection

Martin, Justin (2017-11-29)

Improvements to achieving helicopter autorotation in an event of engine or driveshaft failure is an issue that has and always will be present in the engineering landscape. Questions include, “how much of a performance hit ...

A Reduced Element Map Representation and Applications: Map Merging, Path Planning, and Target Interception

Park, Jinyoung (2017-07-25)

Modern autonomous systems require complex and heavy computations. The complexity can be reduced by eliminating or integrating redundant information. In the case of mobile vehicles, occupancy grid map representations are ...

Shape Memory Alloy Robotic Truss

Prothero, Lori (2008-08-15)

The development, design, and analysis of a Shape Memory Alloy Robotic Truss (SMART) actuator is presented in this research paper. SMART is a three-degree of freedom actuator capable of large rotary and bending displacements ...

Simultaneous Localization and Planning of Cooperative Air Munitions via Dynamic Programming

Doucette, Emily (2008-05-15)

This work centers on the real-time trajectory planning for the cooperative control of two aerial munitions in a planar setting. One munition strikes the stationary ground target and the other will serve as an observer. ...

Study of the Ballistic Capabilities of a Tethered Satellite System

Grant, Jennifer (2012-05-04)

This thesis is an investigation into the ballistic capabilities of a Tethered Satellite System (TSS) when the sub-satellite is released from the system. This topic is of particular interest because TSS could be potentially ...

System Identification of General Aviation Aircraft Using the Filter Error Technique

Patel, Dakshesh (2007-12-15)

An overview of some past and modern applications of system identification techniques to aircraft is presented in this thesis, which traces progress and accomplishments in the field of system identification - especially ...

Three-Dimensional Trajectory Optimization in Constrained Airspace

Dai, Ran (2007-12-15)

This dissertation deals with the generation of three-dimensional optimized trajectory in constrained airspace. It expands the previously used two-dimensional aircraft model to a three-dimensional model and includes the ...