Adaptive fuzzy control of bank-to-turn missiles

An adaptive fuzzy autopilot is developed for bank-to-turn (BTT) missiles. The BTT missile is a complex multi-input and multi-output (MIMO) system which has a nonminimum phase phenomenon. Fuzzy control is suitable for such a system since BTT missiles can be seen as an uncertain system with unmodeled dynamics. One feature of the proposed autopilot is to incorporate the terminal attractor controller into the autopilot to speed up the convergence rate. The stability analysis shows that the states and tracking errors of the BTT missile are uniformly bounded. Two simulation examples demonstrate the effectiveness of the proposed autopilot. The first example is to present the significant contribution of the terminal attractor controller to the convergence rate. Another simulation result is illustrated in our scenarios and shows the superior tracking performance under various flight conditions.

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