Adaptive Trellis Using Interim Maximum-Likelihood Detector Output for a Holographic Storage System

被引：1

作者：

Kim, Gukhui ^{[1
]}

Kim, Jinyoung ^{[1
]}

Lee, Jaejin ^{[1
]}

机构：

[1] Soongsil Univ, Sch Elect Engn, Seoul 156743, South Korea

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2011年 / 50卷 / 09期

关键词：

PRML; EQUALIZATION;

D O I：

10.1143/JJAP.50.09ME06

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The performance of partial response maximum likelihood (PRML) for holographic data storage can be reduced by asymmetric channel characteristics such as radial/tangential tilts. Therefore, we proposed the adaptive trellis scheme to improve performance. The proposed algorithm updates the reference branch values through using interim maximum-likelihood detector output, using the changed channel condition. Thus, this system guarantees better bit error rate performance than conventional PRML detection. (C) 2011 The Japan Society of Applied Physics

引用

页数：2

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