Robust control of uncertain systems via norm- and sector-bounded LQG-type controllers

Addresses the design of linear-quadratic-Gaussian (LQG) controllers for uncertain linear time-invariant systems that are either norm-bounded or belong to a given sector. The system matrices are assumed to be affine functions of parameters confined to a convex polytopic region in the parameter space. The resulting controllers themselves satisfy certain norm or sector conditions and provide robust stability as well as optimal performance.

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