A control method for the naval artillery servo system based on the grading fuzzy sliding mode control with the interference observer

In order to reduce the shooting instant error of the naval artillery digital servo system which has large impact torque when naval artillery is shooting, it is necessary to enhance the robustness and the antijamming ability of the naval artillery digital servo system, and a self-regulating grading fuzzy sliding control scheme with interference observer. Firstly, an interference observer was designed to compensate part of the extern interference. Secondly, the grading fuzzy sliding mode control scheme based on the exponent approaching method and fuzzy control method which can have speedy response, strong robustness and reduce the scattering of the sliding mode control was designed. Finally, the self-regulating algorithm of the sliding control according the error change was designed. It can be prove from the simulation experiment that the control scheme can enhance the robustness of the system and reduce the shooting instant error greatly.