Abstract:
This paper considers the problem of global practical tracking via output feedback control for a
class of more general uncertain high-order nonlinear systems. By introducing sign function and
necessarily modifying the homogeneous domination approach and under a weaker growth condition, this paper proposes a new control scheme to achieve the global practical tracking. It is shown
that the designedcontroller guarantees that the state of the resulting closed-loop system is globally
bounded and the tracking error converges to a prescribed arbitrarily small neighborhood of the
origin after a finite time.
