Robust output control of systems subjected to perturbations via high-order sliding modes observation and identification

The control of linear systems subjected to perturbations by means of high-order sliding modes observation and identification techniques is presented. First, the regulation control of a system affected by matched perturbations is addressed. Later on, the method is extended to deal with systems affected by matched and unmatched perturbations. The performance of the proposed controllers is estimated in terms of the deterministic noise upper bounds, sampling time and execution time. The feasibility of the approach is shown by means of experiments and numerical simulations.