Browsing by Author "Postlethwaite, I."

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    Robust controller design using h-infinity loop-shaping and the method of inequalities
    (IEEE, 1994-12-01) Whidborne, James F.; Postlethwaite, I.; Gu, Da-Wei
    A new approach to robust controller design is proposed. By using plant-weighting functions as the design parameters, the approach combines the method of inequalities with robust stabilization of normalized coprime factor descriptions of the weighted plant to design explicitly for closed-loop performance and stability robustness. A procedure for the design of robust two degree-of-freedom controllers is presented and is illustrated on a high-purity distillation column example