DocumentCode
7505
Title
Finite-time control for spacecraft body-fixed hovering over an asteroid
Author
Daero Lee ; Sanyal, Amit K. ; Butcher, Eric A. ; Scheeres, Daniel J.
Author_Institution
New Mexico State Univ., Las Cruces, NM, USA
Volume
51
Issue
1
fYear
2015
fDate
Jan-15
Firstpage
506
Lastpage
520
Abstract
A finite-time control scheme for autonomous body-fixed hovering of a rigid spacecraft over a tumbling asteroid is presented. The relative configuration between the spacecraft and asteroid is described in terms of exponential coordinates on the Lie group SE(3), which is the configuration space for the spacecraft. With a Lyapunov stability analysis, the finite-time convergence of the proposed control scheme for the closed-loop system is proved. Numerical simulations validate the performance of the proposed control scheme.
Keywords
Lie groups; Lyapunov methods; aerospace control; asteroids; closed loop systems; motion control; space vehicles; stability; Lie group; Lyapunov stability analysis; autonomous body-fixed hovering; closed-loop system; finite-time control scheme; finite-time convergence; spacecraft body-fixed hovering; tumbling asteroid; Dynamics; Gravity; Space vehicles; Torque; Trajectory; Vectors;
fLanguage
English
Journal_Title
Aerospace and Electronic Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9251
Type
jour
DOI
10.1109/TAES.2014.140197
Filename
7073509
Link To Document