Application of fuzzy sliding mode control to a command interceptor

This paper is concerned with the application of robust sliding mode control to highly nonlinear dynamical system. Extensive research efforts have been made to design or improve flight guidance and control systems. With the phenomenal growth in soft computing techniques, there is a growing interest to apply these techniques to missile flight guidance and control systems. A fuzzy sliding mode guidance algorithm is designed for command-to-line-of-sight skid-to-turn (CLOS-STT) missile. The fuzzy logic controller is merged with a fuzzy sliding mode controller to improve the robustness. The acceleration command input is obtained while the target randomly maneuvers are considered as a source of uncertainty. A six-degrees-of-freedom flight model for an anti-air command guidance system is developed. Simulation results show the effectiveness of the proposed algorithm.