Perfect Tracking Control based on Prediction of Reference for High Speed Optical Disc System

Abstract

This paper proposes a high-performance robust tracking control system for next-generation optical disc system. The proposed tracking control system consists of robust feedback control system and perfect tracking control system based on error-prediction. The proposed robust feedback control system has a good performance of sudden disturbance suppression for improving a free parameter. Moreover, the periodic-disturbance suppression performance of error-prediction feedforward control system is improved by using zero phase low-pass filter (ZPLPF), in comparison with the conventional control approaches. The experimental results point out that the proposed tracking control system has a precise tracking response against both the periodic disturbance and the sudden disturbance.

Error Prediction Robust Tracking Control System Suppressing Harmonics Disturbance for Optical Disk Recording System

“…5, the proposed error estimation method can be used to obtain the two sampling future values of tracking error e fb t ðk þ 2Þ of the feedback control system without the feed-forward controller. 14,15) Moreover, the feed-forward control loop has the low-pass filter in front of feed-forward controller G ff ðzÞ. The phase delay characteristics are determined by this low-pass filter.…”

Controller design of nonlinear system for fully trackable and partially trackable paths by combining ZD and GD

“…Tracking control is widely encountered in many applications, such as tracking control of optical disc systems [1], dynamical positioning of ocean surface vessels [2], and real-time navigation of mobile robots [3]. Generally, to achieve the tracking-control purpose of a system, a controller of the input u(t) for the system is designed so that the output y(t) can track the desired path y d (t) with an acceptable tracking error.…”

“…Generally, to achieve the tracking-control purpose of a system, a controller of the input u(t) for the system is designed so that the output y(t) can track the desired path y d (t) with an acceptable tracking error. Thus, how to design such an effective controller has been a heated topic [1][2][3]. Zhang dynamics (ZD) and gradient dynamics (GD) are two different types of powerful methods for online problems solving [4][5][6].…”

ZG Tracking Control and Simulation of DI System

“…The tracking control problem commonly arises in many applications [1][2][3][4][5], e.g., the tracking control of optical disc systems [6], real-time navigation of mobile robots [7], and others [8,9]. In this chapter [10], the ZG method is used to design ZG controllers to solve the tracking control problem of double-integrator (DI) system.…”