Search

Article

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

Modulation principles and code design for multilevel optical data storage

Hu Hua Xiong Jian-Ping Xu Duan-Yi Qi Guo-Sheng Xiao Jia-Xi Hu Heng

Modulation principles and code design for multilevel optical data storage

Hu Hua, Xiong Jian-Ping, Xu Duan-Yi, Qi Guo-Sheng, Xiao Jia-Xi, Hu Heng
PDF
Get Citation
Metrics
  • Abstract views:  3502
  • PDF Downloads:  1461
  • Cited By: 0
Publishing process
  • Received Date:  25 March 2005
  • Accepted Date:  19 June 2006
  • Published Online:  08 January 2007

Modulation principles and code design for multilevel optical data storage

  • 1. 清华大学精密仪器与机械学系,光盘国家工程研究中心,北京 100084

Abstract: Multilevel optical data storage is an important technology to improve the recording density of optical disc without changing the optical parameters. One approach is multilevel amplitude modulation, which uses the variance of signal amplitude of length-fixed recorded marks to record information. Another one is multilevel runlength-limited (RLL) modulation, which records information in both the signal amplitude and the length of recorded marks, thus can improve the recording density more effectively than the first way. Multilevel RLL coding is a key technology in multilevel RLL modulation optical recording. In this paper, a new 8-ary (1,3) RLL code is designed with state splitting algorithm. The recording density of this code is as high as 3.0 bits/symbol, and the encoder/decoder is simple and easy to implement. The proposed code can be used for future high density multilevel RLL modulation optical disc systems.

Catalog

    /

    返回文章
    返回