On Robust Two-Block Problems’
نویسندگان
چکیده
In this paper we consider the following robust twoblock problem that arises in est,imation and in fullinformation control: minimize the worst-case H” norm of a two-block transfer matrix whose elements contain H”-norm-bounded modeling errors. We show that, when the underlying systems are single-input/singleoutput, and if the modeling errors are “small enough”, then t,he robust, two-block problem can be solved by solving a one-dimensional family of appropriatelyweighted “modeling-error-free” two-block problems. We also study the consequences of this result to a robust tracking problem, where the optimal solution can be cxplicitly found.
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