CD-ROM Run-out Reduction by Repetitive Control

• Main Authors: Chen, Ping-Po, 陳平波
• Other Authors: Wu Yung-Chun
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/97451196702139719261

碩士 === 國立交通大學 === 電機與控制工程學系 === 86 === In this thesis, a method for reducing the run-out influence due to the tracking servo control system is investigated. Because the run-out signal is priodic, we use the repetitive control algorithm forreducing it without changing the original controller structure . This thesis contains two major parts . The first part deals with the system standard, the circuit analysis and mathematical modelling of the pick-uphead by the Matlab and DSA(Dynamic system Analyser). The second part,deals with the simulation and the practical implementation. We applied the repetitive control algorithm to the tracking control loop of the CD-ROM by TI DSK50 Kit. Experimental results clearly demonstrate that the developed method can reduce the tracking error successfully. Discussionabout the implementation in the real controller are also given.