A terminal guidance law basing on variable universe adaptive fuzzy approach for intercepting maneuvering space targets

A terminal guidance law basing on variable universe direct adaptive fuzzy approach is developed for intercepting maneuvering space targets. By defining the target acceleration as an unknown disturbance, the adaptive laws on a Lyapunov function are developed to adjust the parameters of the fuzzy rules to guarantee the stability of the system. The guidance law not only keeps the angle rate of line of sight between interception and target converging to zero, but also guarantees intercepting all kinds of maneuvering targets. The simulation results show that by introducing the guidance law will achieve the almost zero miss distance and the robustness.