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光存储系统中的游程长度受限编码

Run-length-limited codes for optical storage system
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摘要 游程长度受限编码广泛应用于光(磁)存储系统中,通过将用户数据转换为符合特定信道约束的码元序列,从而提高数据传输的效率与可靠性。较为系统的介绍了游程长度受限编码的基本理论,从原理上分析了有限状态编码器与滑块分组译码器模型,并对主要的编码构造方法进行了概述,展望了游程长度受限编码的发展方向。 Run-length-limited （RLL） codes have been used in most optical （magnetic） data storage systems. RLL codes transform arbitrary user data to channel bits satisfying certain channel constraints, which can improve the efficiency and reliability of data transmission. The basic theory of RLL codes was introduced, and the models of finite-state coding and sliding-block decoding were analyzed. Then the main construction methods for RLL codes were summarized. The future development trends of RLL codes were discussed.
作者 胡华 徐端颐 胡恒
机构地区 清华大学精密仪器与机械学系光盘国家工程研究中心
出处 《光学技术》 EI CAS CSCD 北大核心 2006年第3期323-326,329,共5页 Optical Technique
基金 国家重点基础研究973项目(G1999033003)
关键词 光存储 调制编码 游程长度受限编码 optical storage modulation codes run-length-limited codes
分类号 TP433.4 [自动化与计算机技术]
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光学技术
2006年 第3期

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