抄録
This paper inquires by proposing the control system which improves OPU (Optical Pick Up) control performance of optical disk system. This system can be realized by adding a correction pulse control block which is based on position error signal, onto a conventional position control loop composed of the PID control rule. By this function, the position error resulting from a physical distortion and acceleration disturbance of disk can be decreased sharply. Furthermore, this system can decrease the deviation caused by the shock disturbance which is not able to be controlled by the PID control rule. In addition, it becomes possible to decrease the overshoot at the impulse response sharply, and realizes stable capture of a target position. Since this system is realizable with simple algorithm, it is possible to adopt to wide-range application.
