A singular value sensitivity approach to robust eigenstructure assignment

A design technique for improving the feedback properties of multivariable state feedback systems designed using eigenstructure assignment is presented. Based on a singular value analysis of the feedback properties a design parameter adjustment procedure is outlined. This procedure allows for the preservation of important properties of the initial design, by selecting only a subset of the design parameters for adjustment. The computational requirements are modest and straight-forward to implement with standard software. An example illustrating the method is included.