DC-Free Four-Ary $(2,8)$ Run-Length Limited Code for Multi-level Recording Channels
スポンサーリンク
概要
- 論文の詳細を見る
A new high efficient DC-free $(2,8)$ run-length limited (RLL) code for four-level optical recording channels is proposed. The proposed code can be represented by a finite state diagram (FSM) with three states and implemented easily. The code rate and density ratio of the code are 5/6 bits/symbols and 2.50 bits/minimum-recorded-mark, respectively. On the basis of the experimental results, the performances of the code are evaluated by using partial-response maximum-likelihood (PRML) technology, which is suitable for detecting multi-level RLL signals. By using four-ary $(2,8)$RLL modulation and PRML technology, one can increase the recording density 66.7% relative to conventional binary RLL modulation currently used in digital versatile disc (DVD), meanwhile the bit error rate (BER) still be acceptable.
- 2006-07-15
著者
-
Pan Longfa
Optical Memory National Engineering Research Center, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, P. R. China
-
Pan Longfa
Optical Memory National Engineering Research Center, Department of Precision Instrument and Mechanology, Tsinghua University, Beijing 100084, China
-
Pei Jing
Optical Memory National Engineering Research Center, Department of Precision Instrument and Mechanology, Tsinghua University, Beijing 100084, China
-
Ni Yi
Optical Memory National Engineering Research Center, Department of Precision Instrument and Mechanology, Tsinghua University, Beijing 100084, China
-
Hu Hua
Optical Memory National Engineering Research Center, Tsinghua University, Beijing 100084, P.R. China
-
Hu Heng
Optical Memory National Engineering Research Center, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, P. R. China
-
Xiong Jianping
Optical Memory National Engineering Research Center, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, P. R. China
-
Hu Hua
Optical Memory National Engineering Research Center, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, P. R. China
関連論文
- Read Channel for Multilevel Run-Length-Limited Read-Only Disc
- Constrained Code and Partial-Response Maximum-Likelihood Detection for High Density Multi-Level Optical Recording Channels
- DC-Free Four-Ary $(2,8)$ Run-Length Limited Code for Multi-level Recording Channels
- Modulation Code and Signal Characteristics for Signal Waveform Modulation Optical Disc
- New Differential Phase Detection Method for Signal Waveform Modulation Multi-Level Discs
- Timing Recovery Method for Multilevel Run-Length-Limited Read-Only Disc
- Analysis of the Differential Phase Detection Signal in Multi-level Run-Length Limited Read-Only Disk Driver
- High-Sensitivity Actuator with New Magnetic Circuit in Optical Pickup