D. Lefebvre et F. Rotella, FEEDBACK DESIGN AND PRECOMPENSATION FOR GENERALIZED SYSTEMS, Circuits, systems, and signal processing, 16(5), 1997, pp. 611-624
Feedback control designs are useful for removing the impulses that dis
turb the behavior of generalized state space systems. The aim of this
paper is to detail the design of dynamic precompensators for the imple
mentation of such feedback control designs. Necessary and sufficient c
onditions are given so that the resulting regulators are biproper. It
is pointed out that these conditions are restrictive and that feedback
control designs can lead to nonproper precompensators. To overcome th
is difficulty, a class of proper precompensators is proposed. These re
gulators, which result from an adaptation of the Silverman structure a
lgorithm, remove the impulse behaviors that occur after the initial ti
me by smoothing out the input vector.