High-Density Multilayer Optical Disc Storage

I. Ichimura, T. Maruyama, J. Shiraishi, K. Osato
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引用次数: 8

Abstract

High-density multilayer optical disc storage was investigated by employing advanced signal processing methods such as adaptive equalization and adaptive partial-response maximum-likelihood (PRML) detection. Preliminary experiments, recording on single-layer and dual-layer Blu-ray discs (BD), indicate storage capability of 33.3 GB/layer with adaptive 5-tap PRML. A new signal qualification method, sequenced amplitude margin quasi-error estimation (SAMQES), was introduced for high-density multilayer recording, and possibility toward a total storage capacity of 200 GB was examined by using a six-layer BD-Recordable disc. Despite coherent interlayer crosstalk and lower signal-to-noise ratio, SAMQES showed moderate increase from those in single-layer recording.
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高密度多层光盘存储
采用自适应均衡和自适应部分响应最大似然(PRML)检测等先进的信号处理方法对高密度多层光盘存储进行了研究。在单层和双层蓝光光盘(BD)上记录的初步实验表明,自适应5分频PRML的存储容量为33.3 GB/层。提出了一种用于高密度多层记录的信号鉴定方法——序列幅度裕度准误差估计(SAMQES),并利用六层bd可记录光盘研究了实现200 GB总存储容量的可能性。尽管相干层间串扰和较低的信噪比,但SAMQES较单层记录有适度的增加。
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