部分约束下空中目标拦截制导控制一体化方法

An integrated guidance and control (IGC) method with impact angle is proposed to intercept aerial target, constraints including input saturation and angle of attack are considered as well. Firstly, system with lumped uncertainties is modeled in pitch plane. Based on backstepping and command filter, constraints of impact angle and input saturation due to mechanical limitation of actuator are solved, signals with integration of error are constructed to handle with tracking errors. To guarantee the angle of attack within a predefined interval, barrier Lyapunov function is introduced. Based on Lyapunov theorem, stability of closed system, boundness of signals, and required constraints are proved. Numerical simulations exhibit effectiveness of interception with predefined impact angle for aerial target, constraints satisfied including input saturation and angle of attack, strong robustness also possessed of the method.