Modulation code and PRML detection for multi-level run-length-limited DVD channels

被引：2
|
作者：
Hu, Hua [1 ]
Xu, Duanyi [1 ]
Pan, Longfa [1 ]
机构：
[1] Tsinghua Univ, OMNERC, Dept Precis Instruments & Mech, Beijing 100084, Peoples R China
来源：
2006 OPTICAL DATA STORAGE TOPICAL MEETING, CONFERENCE PROCEEDINGS | 2006年
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1109/ODS.2006.1632736
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Multi-level run-length-limited (ML-RLL) modulation on optical storage channels is a promising method to increase the recording density effectively. In this paper, some experimental results of 4-level RLL modulation on digital versatile disc (DVD) read-only discs are firstly presented. A new DC-free 4-ary RLL (2,8) code with code rate of 8/10 (bits/symbol) is designed, and partial-response maximum-likelihood (PRML) detection is used to evaluate the bit error rate (BER) performance of multi-level readout signals. Experimental and simulation results show the feasibility of 4-level RLL modulation on DVD channels.
引用
收藏
页码：112 / +
页数：2
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