Abstract:

To control the anti-ship missile attacking the maneuvering target with the expected impact angle, based on the coupled dynamics of the relative motion between missile and target, which the target’s maneuver acceleration is included, an augmented proportional navigation guidance law (APNG) is designed by using the Lyapunov stability theory, and a variable structure guidance law (VSG) is designed by using the variable structure control theory. The two guidance laws proposed can be implemented conveniently in engineering application with little target  information , which are only needed to measure the missile- target  line-of-sight angle and the angular velocity online. The stability of the guidance system is proved theoretically, and the numerical simulation result shows that the guidance precision of the APNG is much better than that of the proportional navigation guidance law (PNG). But compared to the VNG, the APNG has no the superiority, especially when the target maneuvers with high acceleration.