Evaluation of multiple reader location for TDMR R/W channel
Evaluation of multiple reader location for TDMR R/W channel
复制标题
评估 TDMR R/W 通道的多个读取器位置
DOI：
10.1109/tmag.2014.2318335
复制
发表时间：
2014
影响因子：
2.1
通讯作者：
H. Muraoka
中科院分区：
文献类型：
--
作者：
Y. Nakamura;N. Fujimoto;Y. Okamoto;H. Osawa;H. Muraoka
利用叠瓦式磁记录的二维磁记录（TDMR）需要使用多个读回波形的二维（TD）信号处理。在本文中，分配双读者（读者1和2）的预期轨道，我们评估的误码率（BER）性能的低密度奇偶校验编码和迭代解码系统的TD有限冲激响应均衡器下TDMR R/W信道规格为4 Tb/in。在这里，TDMR R/W通道建模使用离散化的颗粒介质和写入过程的基础上的斜坡模型，考虑到介质切换场的角度给出的斯通-沃尔法特反转机制。结果表明，为了影响良好的BER性能，读取器1应该从起始轨道的中心稍微朝向下一轨道放置，并且读取器2应该放置在起始轨道和后续轨道之间的边界周围。
The two-dimensional magnetic recording (TDMR) by shingled magnetic recording needs two-dimensional (TD) signal processing using the multiple read-back waveforms. In this paper, to allocate dual readers (reader 1 and 2) for the intended tracks, we evaluate the bit error rate (BER) performance of a low-density parity-check coding and iterative decoding system with a TD-finite impulse response equalizer under TDMR R/W channel specifications of 4 Tb/in. Here, the TDMR R/W channel is modeled using a discretized granular medium and the writing process based on a slope model considering the media switching field angle given by the Stoner–Walfarth reversal mechanism. The result shows that to affect the good BER performance, the reader 1 should be placed slightly toward the next track from the center of the home track, and the reader 2 should be placed around the boundary between the home and following tracks.