Control systems theory
Control systems with anticipated reference
Optimal filters with delayed effect
A new method for the optimal design of filters and control systems has been presented. Such method is applicable when a certain amount of delay or latency in the estimation of a signal affected by noise can be tolerated or in the hypothesis the desired output of the plant to control is known with a certain anticipation. The method is based on the minimization of an appropriated quality index with respect to two design parameters of the filtering or the control system, which have in part already been designed with one of the numerous literature methods. As exemplification, considering the class of Butterworth systems the proposed method has been used to determine some design formulas and to show the obtained consistent improvements.