光盘多阶调制编码优化方法研究  

Multi-order modulation coding optimization method for optical discs

作　　者：方争 张猛 赵雅慧 桂天炜 李威 谢长生 吴非 FANG Zheng;ZHANG Meng;ZHAO Yahui;GUI Tianwei;LI Wei;XIE Changsheng;WU Fei(Wuhan National Research Center for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074,China;School of Computer Science and Technology,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]华中科技大学武汉光电国家研究中心,湖北武汉430074 [2]华中科技大学计算机科学与技术学院,湖北武汉430074

出　　处：《光学技术》2024年第2期241-246,共6页Optical Technique

基　　金：国家重点研发计划(SQ2022YFB2800072)。

摘　　要：传统的光存储系统中采用游程长度受限(RunLengthLimited,RLL)调制技术,受限于光学衍射极限,容量提升难度大。多阶光存储技术采用新型多阶记录介质或多阶调制技术,在不改变光学参数的情况下可以显著的提高光存储的密度和容量。多阶RLL调制编码则是多阶光存储技术中的关键技术,为提高光存储的密度和容量,针对光盘存储研究多阶调制编码优化方法,提出4阶RLL(1,7)调制编码方法,相较于蓝光光盘现采用的17PP编码方法,最大记录密度可达2.4bit,光盘容量提升50%,并具有一定的纠错能力。The conventional optical storage system uses Run Length Limited(RLL)modulation technology,which is limited by the optical diffraction limit and has great difficulty in capacity enhancement.Multi-order optical storage technology uses a new multi-order recording medium or multi-order modulation technology,which can significantly increase the density and capacity of optical storage without changing the optical parameters.In order to improve the density and capacity of high-order optical storage,the multi-order modulation coding optimization method is studied for optical disc storage,and the 4th-order RLL(1,7)modulation coding method is proposed,which can improve the maximum recording density up to 2.4bits,increase the capacity of optical disc by 50%,and have certain error correction capability compared with the 17PP coding method currently used in Blu-ray disc.The maximum recording density can be 2.4bits,the disc capacity can be increased by 50%,and the error correction capability can be improved.

关 键 词：信息光学 多阶光存储 多阶游程长度受限码 调制编码 

分 类 号：TP333.4[自动化与计算机技术—计算机系统结构]