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多阶光存储是一种在不改变原有光路和机械系统的情况下,利用先进的信号处理与调制编码技术,显著提高存储容量和数据传输率的新型技术。综述了多阶光存储的发展历史及研究现状,并针对多阶光存储的两种类型(信号多阶和介质多阶),列举了几种典型的多阶光存储方案。从本质上分析了信号多阶技术和介质多阶技术的不同,展望了其发展方向。
Multi-level optical storage is a new technology that uses advanced signal processing and modulation coding techniques to dramatically increase storage capacity and data transfer rates without changing existing optical paths and mechanical systems. The development history and research status of multi-order optical storage are reviewed. Several typical multi-level optical storage schemes are listed for the two types of multi-level optical storage (signal multi-order and multi-order media). In essence, it analyzes the difference between signal multi-stage technology and medium multi-stage technology and looks forward to its development direction.