Simulation Research on Optimal Sliding-Mode Guidance Law for an Anti-Ship Missile

To overcome the shortages of the traditional proportional guidance in attacking maneuvering targets,the paper firstly established the relative motion models for the anti-ship missile and the target in three dimensions,then based on the optimal guidance law for aiming at non maneuvering targets and the sliding-mode control theory,the optimal sliding-mode guidance law in three dimensions,which was more easily-accomplished in engineering,was derived by making the pitch plane and yaw plane superposition.Simulation studies show that the proposed law in this paper has better guidance accuracy and better dynamic property during pursuit-control processing and it is superior to proportional navigation.