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体全息存储系统具有存储容量大、数据传输率高、存取时间短和可快速进行图像匹配及内容相关寻址操作等特点 .但要成为特性优良的通用型信息存储系统 ,就必须以可接受的误码率同时满足这些性能指标 (计算机外存储器的基本要求是使用户误码率低于 10 - 12 ) .如此 ,仅靠光学设计不是高性价比方法 .设计恰当的纠错编码和数据交错技术可以减轻对原始误码率的要求 ,缓解对系统设计、部件质量等方面的要求 ,在不牺牲其它系统目标的情况下 ,使 10 - 5的原始误码率达到 10 - 12的最终误码率水平 .研究了体全息存储通道中的噪声源及适用于体全息存储系统的纠错编码和数据交错技术
Volume holographic storage system with large storage capacity, high data transfer rate, short access time and fast image matching and content-related addressing operations, etc. However, to become a good general-purpose information storage system, it must be acceptable Bit error rate meets these performance specifications at the same time (the basic requirement of an external computer memory is to make the user bit error rate less than 10 - 12) Thus, optical design alone is not a cost-effective method. Properly designed error correction coding and data interleaving Can reduce the requirements of the original bit error rate, ease the system design, component quality and other requirements, without sacrificing other system goals, the original 10 - 5 bit error rate of 10-12 final error rate Level.The noise sources in the body holographic storage channel and the error correction coding and data interleaving technology suitable for the volume holographic storage system