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Author Boskovic, J.D. ♦ Li, S.-M. ♦ Mehra, R.K.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1999
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Other branches of engineering
Subject Keyword Programmable control ♦ Adaptive control ♦ Control design ♦ Space vehicles ♦ Control systems ♦ Aerodynamics ♦ Uncertainty ♦ Force control ♦ Torque ♦ Stability analysis
Abstract We present a globally stable adaptive tracking control algorithm for spacecraft in the presence of control input saturation, parametric uncertainty, and external disturbances. The control algorithm is based on a variable structure control design, and has the following properties: (i) fast and accurate response in the presence of bounded disturbances and parametric uncertainty; (ii) explicit accounting for control input saturation; and (iii) computational simplicity and straightforward tuning. We include a detailed stability analysis for the resulting closed-loop system. It is shown that global stability of the overall system is guaranteed even in the presence of bounded disturbances and parametric uncertainty. The stability proof is based on a Lyapunov-like analysis and the properties of the quaternion representation of spacecraft dynamics. One of the main features of the proposed design is that it establishes a straightforward relationship between the magnitudes of the available control inputs and those of the desired trajectories and disturbances. Numerical simulations are included to illustrate the spacecraft performance obtained using the proposed controller.
Description Author affiliation: Sci. Syst. Co. Inc., Woburn, MA, USA (Boskovic, J.D.)
ISBN 0780352505
ISSN 01912216
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1999-12-07
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 604.78 kB
Page Count 6
Starting Page 1952
Ending Page 1957

Source: IEEE Xplore Digital Library