光盘机的DSP数字伺服系统设计

A DSP-based Digital Servo System for Optical Disk Drives

该文研究了可重写光盘机DSP数字伺服控制的问题，给出了数字控制系统的硬件构成。详细讨论了重要的设计问题一几个主要器件如DSP、A／D、D／A性能参数的选择，给出了具体的设计参数。讨论了数字控制器实现的一些具体问题，并给出了一个所实现的包含DSP数字控制器的伺服回路的开环频率特性曲线。

The problems are studied about the digital servo using Digital Signal Processor (DSP)for rewritable optical disk drives, and the system scheme is presented.Some guidelines on seIection of DSP, A / D and D /A converters, as well as some concrete design parameters, are given.Discussions about implementation of digital controller and the curves of tested frequency response of a implemented controller are also pressented.