mu Controllers: Mixed and fixed

A method is presented far the synthesis of fixed-order controllers with robustness to mixed real and complex uncertainties. The capabilities of the method are demonstrated on a two-mass/spring benchmark problem and on a flexible satellite example. Several fixed-order mixed mu controllers are designed. A comparison with both full-order and reduced-order controllers indicates that the method is capable of synthesizing low-order controllers achieving robust performance levels similar to full-order designs, and superior to reduced-order controllers.