Adaptive Trellis Using Interim Maximum-Likelihood Detector Output for a Holographic Storage System
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概要
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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.
- 2011-09-25
著者
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Lee Jaejin
School of Electronic Engineering, Soongsil University
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Kim Jinyoung
School of Electronic Engineering, Soongsil University, 511 Sangdo-dong, Dongjak-gu, Seoul 156-743, Korea
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Kim Gukhui
School of Electronic Engineering, Soongsil University, Seoul 156-743, Korea
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