Influence of writing ITI effects in shingled magnetic recording
Influence of writing ITI effects in shingled magnetic recording
复制标题
叠瓦磁记录中写入ITI效应的影响
DOI：
10.1109/tmag.2013.2242439
复制
发表时间：
2013
影响因子：
2.1
通讯作者：
H. Muraoka
中科院分区：
文献类型：
--
作者：
H. Nobuhara;Y. Okamoto;Y. Nakamura;K. Takada;M. Yamashita;H. Osawa;H. Muraoka
本文研究了叠瓦式磁记录（SMR）中道间干扰（ITI）对记录和阅读的影响。示出了在写入时影响当前正在写入的磁道和先前记录的磁道上的磁性颗粒的两种ITI。一种是由于写入器的写入能力不足，使得先前记录的磁道上的一部分信号残留在当前磁道上。另一种是下一磁道写入时擦除部分信号。这种影响是由写入时相邻磁道引起的。此外，阅读时的ITI使读回波形恶化。因此，这些ITI的带来的解码错误。利用上述R/W模型进行计算机仿真的结果表明，解码错误发生在原本被认为难以出错的轨道低密度部分。
In this paper, the influence of the intertrack interference (ITI) at writing in shingled magnetic recording (SMR) as well as at reading is examined using a read/write model based on recording on a medium composed of discrete Voronoi diagram by a triangular writer with trailing and one-side shields. Two kinds of ITI's at writing which affect the magnetic grains on the track currently being written and the previously recorded track are shown. One is that a part of signal on the previously recorded track remains on the current track due to lack of writing ability of writer. Another is that a part of signal is erased by the next-track writing. The effects are caused from the adjacent tracks at writing. Additionally the ITI at reading deteriorates the read-back waveform. Consequently these ITI's bring the decoding errors. The results by computer simulation using above R/W model show that the decoding errors occur in the low density parts of track which were originally considered to be hard to make errors.