A study on optimal BAR in array head reading
A study on optimal BAR in array head reading
复制标题
阵列头读取中最优BAR的研究
DOI：
10.1109/tmag.2017.2701355
复制
发表时间：
2017
影响因子：
2.1
通讯作者：
H. Muraoka
中科院分区：
文献类型：
--
作者：
T. Kondoh;Y. Nakamura;M. Nishikawa;H. Osawa;Y. Okamoto;Y. Kanai;H. Muraoka
二维磁记录技术（TDMR）是将铺层磁记录技术（SMR）与二维信号处理技术相结合的一种新技术，受到了硬盘行业的广泛关注。SMR是一种为了增加磁道密度而在没有保护带的情况下写入磁道的磁记录系统。因此，写入和读取轨间干扰（ITIs）的影响会降低波形再现的质量。此外，由于读取器灵敏度的宽度，由于覆盖和相邻轨道的串扰而导致的轨道退化。提出了一种利用二维有限脉冲响应滤波器对三个相邻轨道的波形进行均衡的方法，以减少读数的影响。本文利用计算机仿真得到的低密度奇偶校验（LDPC）编码和迭代译码系统的误码率，对4tb /in2规格下TDMR读写信道的位长宽比（BAR）进行了评价。结果表明，阵列头读取的合适BAR值为2.0。
Two-dimensional magnetic recording (TDMR), which combines shingled magnetic recording (SMR) with 2-D signal processing attracts attention from the hard disk drive industry. SMR is a magnetic recording system in order to increase the track density by writing tracks without the guard band. Therefore, the influences of writing and reading intertrack interferences (ITIs) deteriorate the quality of reproducing waveforms. Additionally, degradation of track due to overwriting and crosstalk from the adjacent tracks due to the width of reader sensitivity. The equalization using 2-D finite impulse response filter for the waveforms from three adjacent tracks is proposed as a method to reduce the influence of reading ITIs. In this paper, we evaluate the bit aspect ratio (BAR) in TDMR read/write channel under a specification of 4 Tb/in2using bit error rate of the low-density parity-check (LDPC) coding and iterative decoding system obtained by computer simulation. The results show that the suitable BAR in array head reading is 2.0.
使用来自和积解码器的衰减外在信息对具有图案介质的 PMR 通道进行迭代解码
DOI：
--
发表时间：
2007
期刊：
IEEE Transactions on Magnetics 43・6
影响因子：
--
作者：
Y.Nakamura;M.Nishimura;Y.Okamoto;H.Osawa;H.Aoi;H.Muraoka;Y.Nakamura
通讯作者：
Y.Nakamura
影响因子：
8.3
作者：
E. Kretzmer
通讯作者：
E. Kretzmer