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
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页数：2
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