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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers & Short Notes >Hybrid Equalized Partial Response Path-Feedback Maximum Likelihood for 35.4 GB Blu-ray Disc ROM
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Hybrid Equalized Partial Response Path-Feedback Maximum Likelihood for 35.4 GB Blu-ray Disc ROM

机译：适用于35.4 GB蓝光光盘ROM的混合均衡的部分响应路径反馈最大可能性

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The decoding method with larger margin has been required according to the recent high density optical recordings. Since the optical reproduced signal has a strict cutoff of modulation transfer function (MTF), the high linear density equalization will cause the equalization error. In such a case, adaptive Viterbi has been investigated as a decoding method which compensates tangential inter-symbol interference (ISI) and the scanty high frequency components. This fundamental theory is based on path feedback Viterbi detection. We have developed hybrid equalized partial response path-feedback maximum likelihood (HEPR-PFML) which compensates the scanty frequency components more efficiently than conventional adaptive Viterbi. By using this system, the decoding performance is not only improved, but phase locked loop (PLL) will be stable because of the clear timing error information. We will show the experimental results for the higher density 35.4 GB Blu-ray Disc ROM (BD-ROM) than standard linear densities.
机译：根据最近的高密度光学记录，已经需要具有更大余量的解码方法。由于光学再现信号的调制传递函数（MTF）严格截止，因此高线性密度均衡将导致均衡误差。在这种情况下，已经研究了自适应维特比作为一种解码方法，该方法可以补偿切向符号间干扰（ISI）和少量的高频分量。该基本理论基于路径反馈维特比检测。我们已经开发了混合均衡的部分响应路径反馈最大似然（HEPR-PFML），它比传统的自适应维特比更有效地补偿了稀少的频率分量。通过使用该系统，由于清除了清晰的定时误差信息，因此不仅改善了解码性能，而且锁相环（PLL）也将保持稳定。我们将展示比标准线性密度更高密度的35.4 GB蓝光光盘ROM（BD-ROM）的实验结果。

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