Stabilization of Delay Systems with Nonlinearly Correlated Perturbations by a Constant Controller

In this paper we prove that the same design method of constant controllers for a delay systems given in the literature can be used to stabilize a minimum phase systems with nonlinearly correlated perturbations in the coefficients. This type of perturbation is induced by the composition with strictly positive real functions. This result can also be interpreted on the context of simultaneous and robust stabilization for single-input single-output, linear time invariant delay systems.