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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/743

Title: A topological obstruction to continuous global stabilization of rotational motion and the unwinding phenomenon
Authors: BHAT, SP
Keywords: asymptotic stability
attitude control
state-space methods
Issue Date: 2000
Publisher: Elsevier
Citation: Systems & Control Letters 39(1), 63-70
Abstract: We show that a continuous dynamical system on a state space that has the structure of a vector bundle on a compact manifold possesses no globally asymptotically stable equilibrium. This result is directly applicable to mechanical systems having rotational degrees of freedom. In particular, the result applies to the attitude motion of a rigid body. In light of this result, we explain how attitude stabilizing controllers obtained using local coordinates lead to unwinding instead of global asymptotic stability.
URI: http://dx.doi.org/10.1016/S0167-6911(99)00090-0
ISSN: 0167-6911
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