Design of Fuzzy Sliding Mode Guidance Law of Missile with Field Angle and Fall Angle Constraints

In this thesis, the guidance problem of missile is studied in the consideration of the factors of external disturbance, fall angle constraint and field angle constraint. Firstly, the fuzzy sliding mode guidance strategy is designed for the two-dimensional guidance model considering external disturbance and fall angle constraint. Secondly, the field angle threshold correction instruction with correction coefficient is applied based on the guidance law of fall angle constraint. Finally, the guidance strategy with fall angle and field angle constraint is proposed by the thinking of switching logic, the stability and convergence of the system state are given based on Lyapunov stability theory, and the effectiveness of the designed guidance scheme is verified by digital simulation.