PRML技术在高密度数据存储系统中的应用  

作　　者：胡华 

出　　处：《记录媒体技术》2006年第2期35-40,共6页China Mediatech

摘　　要：Partial-response maximum-likelihood(PRML)technology has been broadly used in current magnetic recording systems,and shows great potential to be applied in the third-generation optical disc systems using blue lasers.In this paper,the basic principle and application of PRML scheme are introduced.The famous PR4 magnetic recording channel has been decribed in details,and the application of PRML for optical disc system has also been discussed.Partial-response maximum-likelihood(PRML)technology has been broadly used in current magnetic recording systems,and shows great potential to be applied in the third-generation optical disc systems using blue lasers.In this paper,the basic principle and application of PRML scheme are introduced.The famous PR4 magnetic recording channel has been decribed in details,and the application of PRML for optical disc system has also been discussed.

关 键 词：存储系统 PRML 高密度数据 记录密度 传递函数 磁记录 均衡处理 码间干扰 调制编码 Viter 

分 类 号：TP333[自动化与计算机技术—计算机系统结构]