  Predicting the state of a system in a relatively near future time instant is
often needed for control purposes. However, when the system is affected by
external disturbances, its future state is dependent on the forthcoming
disturbance; which is, in most of the cases, unknown and impossible to measure.
In this scenario, making predictions of the future system-state is not
straightforward and, indeed, there are scarce contributions provided to this
issue. This paper treats the following problem: given a LTI system affected by
continuously differentiable unknown disturbances, how its future state can be
predicted in a sufficiently small time-horizon by high-order observers.
Observer design methodologies in order to reduce the prediction errors are
given. Comparisons with other solutions are also established.

Systems and Control;Systems and Control