CAD of the Horowitz/Sidi-Design for Feedback Systems with Large Plant Parameter Uncertainty

I. M. Horowitz and M. Sidi (1972) presented a design procedure which guarantees quantitative demands on disturbance rejection and suppression of plant variation using the minimum controller gain just necessary for this effect. This paper describes an interactive, computer-aided implementation of this design procedure, which has proved to be very effective. The plant variations are handled by some expansions of a method from L. Longdon and D. J. East (1979), the controller design by a parameter optimization method using a vectorial performance criterion in an interactive manner.