For systems with algebraic dependencies an extended design of an optimal controller is discussed. It relies on a new notion of a sequential controller proposed together with an efficient algorithm for determining a set of admissible controllers to a given system that contain the least number of delays. An extended optimizing recursion then follows naturally.
The paper deals with some specific feedback solutions to tracking problems for discrete linear SISO systems, characterized by a finite length control sequences (FLC) and by an infinite or a finite length error sequences. A complete set of all 2DoF FLC controllers for plants exposed to general disturbances (2DoF GFLC) is determined and it is shown that this… (More)