Automatica, Vol.48, No.5, 886-893, 2012
Matched disturbance suppression for nonlinear systems stabilizable by logic-based feedback
We focus on a class of nonlinear systems that can be stabilized at a desired compact set by means of logic-based continuous feedback and we show how to design regulators that are robust to matched exosystem-generated disturbances. The proposed design methodology, of interest also for purely continuous-time systems, combines recent advances in the field of hybrid control systems and output regulation for nonlinear systems. As an illustrative example, the problem of global stabilization of a 6-DOF rigid body affected by a force periodic disturbance of uncertain amplitude, phase and frequency is presented. (C) 2012 Elsevier Ltd. All rights reserved.