Shift Error Porpagation in 2, 7 Modulation Code
Shift Error Porpagation in 2, 7 Modulation Code
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2、7 调制码中的移位误差传播
DOI：
10.1109/49.124481
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
H. Hilden
中科院分区：
文献类型：
--
作者：
D. Howe;H. Hilden
作者分析了移位误差如何传播在一个特定的游程长度有限（RLL）调制码，广泛用于现代高密度数据存储机。更具体地说，计算用户数据中的一个或两个字节的突发错误将由任意信道数据移位错误引起的概率。作者考虑了空间记录密度接近磁头/介质界面固有分辨率的情况;这里，仅对于某些最坏情况的通道数据模式，才有很高的可能性发生移位错误，即，当所考虑的信道“1”表示遭受符号间干扰（ISI）的记录的写信号转换时。作者治疗的情况下，记录的标记在介质上的播放很好地解决，这里的移位错误是同样可能在所有通道的“一”的位置。>
The authors analyze how shift errors propagate in a particular run-length limited (RLL) modulation code that is widely used in modern high-density data storage machines. More specifically, the probability that either a one or two byte burst error in the user data will result from an arbitrary channel data shift error is calculated. The authors consider the case in which the spatial recording density, is near the intrinsic resolution of the head/medium interface; here shift errors occur with high probability only for certain worst-case patterns of channel data, i.e., when the channel 'one' under consideration represents a recorded write signal transition that suffers intersymbol interference (ISI). The authors treat the case in which the recorded indicia on the medium are well resolved on playback; here shift errors are equally probable at all channel 'one' locations. >