93-192
Attitude Control Of Spacecraft Using Neural Networks
S. R. Vadali*, S. Krishnan** And T. Singh***
Abstract
This paper investigates the use of radial basis function neural networks for adaptive attitude control and momentum management of spacecraft. In the first part of the paper, neural networks are trained to learn from a family of open-loop optimal controls parameterized by the initial states and times-to-go. The trained network is then used for closed-loop control. In the second part of the paper, neural networks are used for direct adaptive control in the presence of unmodeled effects and parameter uncertainty. The control and learning laws are derived using the method of Lyapunov.
*Associate Professor, Department of Aerospace Engineering, Texas A&M University, College Station, Texas 778U.
**Graduate Student, Department of Aerospace Engineering, Texas A&M University, College Station, Texas 778U.
***Research Engineer, Department of Aerospace Engineering, Texas A&M University, College Station, Texas 77843.