摘要
一、前言 信息技术的发展对光存储系统容量和数据传输率提 出了越来越高的要求。传统光存储受到光学衍射极限的 限制,采用缩短激光波长和增大数值孔径的方法来提高 存储密度的空间非常有限。多阶光存储技术能够在不改 变光学数值孔径的情况下,利用先进的信号处理与编码 技术,显著提高存储容量和数据传输率,目前已经成为 国内外光存储研究的热点方向之一。
Multi-level optical storage, which uses advanced coding and signal processing technologies, is a novel approach to increase recording density and data transfer rate significantly without altering optical parameters of current optical disc system. In this paper, we give a survey of several typical multi-level optical storage schemes. The principle and characteristic of different multi-level optical storage are analyzed and compared. The future development of multi-level technology is discussed in the end.
出处
《记录媒体技术》
2005年第4期16-20,共5页
China Mediatech
