Identification and control of discrete linear systems subject to disturbances with rational spectral density

The paper outlines a particular computer aided design philosophy for the control of single input-single output discrete systems subject to disturbances with rational spectral density. The design procedure is based on identification and synthesis; computer aided methods of off-line and on-line process identification provide sufficient information for the synthesis of a constrained input, minimum variance control algorithm of particularly simple form. In this sense, the present approach to control systems design provides a possible systematic alternative to more conventional methods, such as three term control. Since the complete design procedure is composed in part of certain existing techniques, the paper can also be considered as a short review of the subject.