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Coordinated Motion Design on Lie Groups

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3 Author(s)
Sarlette, A. ; Dept. of Electr. Eng. & Comput. Sci., Univ. de Liege, Liege, Belgium ; Bonnabel, S. ; Sepulchre, R.

The present paper proposes a unified geometric framework for coordinated motion on Lie groups. It first gives a general problem formulation and analyzes ensuing conditions for coordinated motion. Then, it introduces a precise method to design control laws in fully actuated and underactuated settings with simple integrator dynamics. It thereby shows that coordination can be studied in a systematic way once the Lie group geometry of the configuration space is well characterized. Applying the proposed general methodology to particular examples allows to retrieve control laws that have been proposed in the literature on intuitive grounds. A link with Brockett's double bracket flows is also made. The concepts are illustrated on SO(3) , SE(2) and SE(3) .

Published in:

Automatic Control, IEEE Transactions on  (Volume:55 ,  Issue: 5 )