Improved Performance of a Bank-to-turn Missile Using Quantitative Feedback Theory Based Robust Controller

In this paper, a quantitative feedback theory based robust controller is proposed to improve the performance of a bank-to-turn (BTT) missile. The proposed controller provides reduced sensitivity with respect to parametric uncertainty, robust stability as well as robust tracking. A two-degrees-of-freedom (2-DOF) control structure consisting of a feedback controller and a pre-filter is used. The controller provides the required sensitivity, stability and partial tracking. The pre-filter is designed to meet the tracking specifications explicitly. Lastly, effectiveness of the controller is validated by computing the error speculation of achievable criteria.