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Assuming the desired time-varying reference trajectory is available to all the rigid bodies, we consider distributed attitude synchronization for multiple rigid bodies only with attitude measurement. Based on two lead filters which remove the requirement of angular velocity, we propose control law composed of two parts to reduce tracking error and to achieve attitude synchronization, respectively...
We consider the coordinated attitude control problem for a group of spacecraft without velocity measurements. Our approach is based on the introduction of an auxiliary dynamical system for each spacecraft (playing the role of velocity observers in a certain sense) to generate the individual and relative damping terms in the absence of the actual angular velocities and relative angular velocities....
An adaptive consensus control framework for the rotational dynamics of multiple spacecraft is developed. Specifically, we assume that the mass moment of inertia of each spacecraft is unknown so that the largest principal axis is uncertain. Even though conservation of momentum does not hold in the adaptive case, attitude synchronization is attained after sufficiently long time has elapsed.
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