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Dynamic control with adaptive identification for free-flying space robots in joint space

Published online by Cambridge University Press:  09 March 2009

Jin-Ho Shin  and
Ju-Jang Lee
Jin-Ho Shin
Affiliation:
Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, 371–1 Kusong-dong Yusong-gu Taejon 305–701 (Korea)
Ju-Jang Lee
Affiliation:
Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, 371–1 Kusong-dong Yusong-gu Taejon 305–701 (Korea)
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Summary

In this paper, a joint space dynamic control scheme with an adaptive identifier is proposed for free-flying space robots. The control in Cartesian space poses a measurement problem which is critical from a point of view of implementation. In order to overcome this problem, a joint space control is developed. An inverse kinematics algorithm is proposed so as to control free-flying space robots in joint space. Since the inverse kinematic solutions for space robots depend on the dynamic parameters as well as the kinematic.parameters, the accurate estimation of all the unknown parameters is essential to make joint space control possible. Therefore, an off-line adaptive parameter identification is performed for free-flying space robots. Simulation results are given to show the validity and the effectiveness of the presented adaptive identification and dynamic control scheme.

Keywords

Free-flying space robotsJoint space controlInverse kinematicsDynamic controlAdaptive identification
Type
Articles
Information
Robotica , Volume 12 , Issue 6 , November 1994 , pp. 541 - 551
Copyright
Copyright © Cambridge University Press 1994

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