Design for a Terminal Guidance Law of the Interceptor by Combined Control

A fuzzy variable structure terminal guidance law is presented for combined control interceptor in aerosphere. After constructing the relative movement between the target and interceptor, a fuzzy logic control is designed for tuning the variable structure guidance law. This guidance law needs no information on the motion of the target, it is simple to control the interceptor and is convenient for practical project, which demonstrate the advantage of fuzzy variable structure guidance law. Simulation results show that this guidance law reduces the chattering for high-speed maneuverable target, and it can also implement efficiently the precise guidance of the interceptor as well as preferable robust stability