Stabilization of tethered satellites during station keeping
نویسندگان
چکیده
منابع مشابه
High-Order Optimal Station Keeping of Geo- stationary Satellites
Nominal space trajectories are usually designed by solving an optimal control problem that maximizes the payload launch-mass ratio while achieving the primary mission goals. However, uncertainties and disturbances affect the spacecraft dynamics in real scenarios. This draws the designer towards the development of optimal feedback control strategies that assure the satisfaction of the mission go...
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This paper considers the problem of out of plane orbital maneuvers for station keeping of satellites. The main idea is to consider that a satellite is in an orbit around the Earth and that it has its orbit is disturbed by one or more forces. Then, it is necessary to perform a small amplitude orbital correction to return the satellite to its original orbit, to keep it performing its mission. A l...
متن کاملA Unification of Models of Tethered Satellites
In this paper different conservative models of tethered satellites are related mathematically and it is established in what limit they may provide useful insight into the underlying dynamics. An infinite dimensional model is linked to a finite dimensional model, the slack-spring model, through a conjecture on the singular perturbation of tether thickness. The slack-spring model is then naturall...
متن کاملStudy of Low-cost Orbit Determination System for Tethered Satellites
The statistics of estimated errors when conducting the orbit determination of a tethered satellite system (TSS) by only using Doppler frequencies is shown. TSS consists of two satellites connected each other by a tether. The center of mass (CM) moves like a single satellite, so this system can be utilized in case of a single satellite as well as TSS. This is considered as a low-cost orbit deter...
متن کاملOnline Approximate Optimal Station Keeping of an Autonomous Underwater Vehicle
Online approximation of an optimal station keeping strategy for a fully actuated six degrees-of-freedom autonomous underwater vehicle is considered. The developed controller is an approximation of the solution to a two player zero-sum game where the controller is the minimizing player and an external disturbance is the maximizing player. The solution is approximated using a reinforcement learni...
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ژورنال
عنوان ژورنال: IEEE Transactions on Automatic Control
سال: 1990
ISSN: 0018-9286
DOI: 10.1109/9.59804