Application of a dual-repetitive controller to the single-axis angular-vibration table

The main problem for the designed control system of high-frequency angular vibration table is how to promote the tracking precision of the periodic reference input signal and how to the periodic disturbed signal. Due to mechanical vibration and restrict of the construct of table. It is very difficult for the system to meet the index of acceleration and bandwidth of table. To reduce disturbed errors of testing to the dynamic index of angular-accelerometers gyro, the design of dual-repetitive controller is proposed and applied to high-frequency angular-vibration tables. the conclusion about stability, robustness and error convergence is obtained. Simultaneously, it gives designed methods and conditions of choosing parameters. Tracking accuracy and robustness of the system can be improved by applying the dual-repetitive controller to high-frequency angular vibration table.