An investigation is described that attempts to demonstrate the benefits that can be gained by wider application of fuzzy logic control. The views presented are based on the control of a flexible communications satellite. Regions are identified in which the fuzzy logic controller's performance is superior to that of a classical design, when process mismatch is significant. Employing an approach incorporating Lyapunov's second method a parameter space is located where controller coefficients can be selected with relative confidence.
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