Robust semi-global stabilization of linear systems with imperfect actuators

This paper deals with the problem of semi-globally stabilizing a linear system in the presence of input additive uncertainties and disturbance using actuators that have imperfect input output characteristics. The input output characteristics of the actuators used include those of dead zone and saturation and are not precisely known. Two design approaches, the low-and-high-gain approach and the low-gain-based variable structure control approach, are taken in solving the problem.