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In this paper we investigate the robust controller design problem for a Multi-Agent System (MAS). The agents are modeled as identical LTI systems and the way in which they exchange information is modeled by a directed graph. The communication structure may be subject to changes and is affected by time-varying delays. Moreover, the communication delays may also affect an agent's own outputs. We extend...
An alternative way to control a nonlinear system, such as a two Degree Of Freedom helicopter, is the linearization of the model around an equilibrium point, in this case, an equilibrium point around the Pitch angle. Subsequently, the design a Robust Controller for this system is done, using a the DK iteration method. However, when a variation of an angle such as its uncertainty is modeled, the performance...
In this paper, a parameter-dependent Lyapunov function method is applied to design robust controller for a satellite formation flying system around the Earth based on an uncertainty model derived from a nonlinear relative position equation. In this model, nonzero eccentricity and varying semi-major axis are included as parametric uncertainties. Exogenous perturbations including J2 perturbation, atmospheric...
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