IEEE Transactions on Automatic Control, Vol.42, No.8, 1154-1157, 1997
Synthesis of Positive Real Feedback-Systems - A Simple Derivation via Parrotts Theorem
A remarkably simple derivation of the formulas for a controller rendering a closed loop system strongly positive real (SPR) Is presented. The derivation is based on Parrott’s theorem and the positive real lemma.
Keywords:H-INFINITY CONTROL