1. A control system comprising: an actuator for positioning a control device; a control law for directing the actuator as a function of a model output, and a closed-loop model processor for generating the model output, the closed-loop model processor comprising: an open loop module for generating the model output as a function of a model state and a model input; a corrector output module for generating a corrector output as a function of the model output; a comparator for generating an error by comparing the corrector output to the model input; and a model state estimator for generating the model state as a function of the error, such that the error is minimized.