Improving digital-leading tracking precision for photoelectric platform by complex control

The working principle and function of a photoelectric platform were introduced,and the classical control methods of the velocity loop and the position loop were also described.In order to improve the tracking precision of the system,a complex control in the digital-leading system of the photoelectric platform was put forward.The principle and limitation of the feed-forward control was introduced,and the design method of the feed-forward control in the system was particularly described.The experimental results show that the digital-leading tracking precision of the system is improved by 10% in the feed-forward control without changing the closed-loop stability of the system.