Impact angle constrained integrated guidance and control for maneuvering target interception

摘要

The problem of intercepting unknown maneuvering targets with desired impact angle constraint is investigated by an integrated guidance and control law based on an adaptive backstepping technique in this Note. By virtue of the proposed adaptive laws, the proposed integrated guidance and control law requires no a priori information on the target maneuver and therefore is capable of real application. To further simplify the classical backstepping design, a smooth second-order sliding mode differentiator is proposed to estimate the derivatives of the virtual control laws. Stability analysis is also presented in the framework of a Lyapunov function approach. Simulation results with some comparisons explicitly demonstrate the effectiveness of the proposed integrated guidance and control law.