Periodic Disturbance Rejection on a Laser Beam Stabilizing System with Adaptive Controllers

摘要

The paper compares three adaptive algorithms on a laser beam stabilization system. The system includes a disturbance of time-varying frequency and the algorithms are designed to reject such disturbance without a reference sensor or knowledge of the frequency. Mathematical models of the laser system are developed first. Then three adaptive controllers are presented to reject the sinusoidal disturbance with unknown phase, frequency and magnitude. Experimental and simulated results are presented and compared.