OUTPUT REGULATION FOR LINEAR-SYSTEMS SUBJECT TO INPUT SATURATION

The purpose of this paper is to examine the problem of controlling a l inear time-invariant system subject to input saturation in order to ha ve its output track (or reject) a family of reference (or disturbance) signals produced by some external generator. It is shown that a semig lobal framework for this problem is a natural one. Within this framewo rk, a set of solvability conditions are given and feedback laws that s olve the problem are constructed. The theory developed in this paper i ncorporates earlier results established for linear systems without inp ut saturation.