Minimum-Time Orbital Phasing Maneuvers

Orbital Maneuvers Using Low-thrust

To perform the orbital maneuvers, a software that calculates an optimal maneuver is developed. This method will be used as a reference for comparison and analises of the suboptimal methods to be used on board. This method id based on an analytical development that generate equations that can be computed in a shorter time, allowing real time applications. Key-Words: Orbital maneuvers, low thrust...

Near-Minimum-Time Maneuvers of Large Structures: Theory and Experiments

This paper describes the design and implementation of near-minimum-time control laws for the Advance Space Structures Technology Research Experiments test article located at the Phillips Laboratory, Edwards Air Force Base. The test article is equipped with compressed air thrusters that can be throttled. The mathematical model of the rotational motion is obtained by using experimental data and i...

Orbital phasing of satellites on circular orbits

A Real-Time Robust Method to Detect BeiDou GEO/IGSO Orbital Maneuvers

The frequent maneuvering of BeiDou Geostationary Orbit (GEO) and Inclined Geosynchronous Orbit (IGSO) satellites affects the availability of real-time orbit, and decreases the accuracy and performance of positioning, navigation and time (PNT) services. BeiDou satellite maneuver information cannot be obtained by common users. BeiDou broadcast ephemeris is the only indicator of the health status ...

Classical Element Feedback Control for Spacecraft Orbital Maneuvers

The recent addition of autonomous formation flying spacecraft to the world's satellite fleet provides new motivation to study feedback control techniques. In this thesis, we develop nonlin-ear orbit control laws for use in spacecraft orbital maneuvers, and spacecraft formation flying. We apply these new control laws to a number of sample maneuvers, including formation establishment and formatio...