Shingled magnetic recording (SMR) is regarded as the most influential technology for the next-generation magnetic recording systems. The SMR tracks are partly overlapped by each other, and the SMR systems can obtain higher area densities by increasing track per inch density. As a result, this brings more interference from the adjacent sidetracks, i.e., intertrack interference (ITI) while reading the home track. In this letter, we are interested in applying the filtering process to the squeezed tracks before recording to improve the quality of retrieved data. The preprocessing is to reduce the effect of unwanted signals from the sidetracks on the home track. The results show that the SMR system's performance is vastly improved even under the extremely severe effects of the ITI.

中文翻译：

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叠瓦式磁记录系统的相反部分响应滤波器

叠瓦式磁记录 (SMR) 被认为是下一代磁记录系统最具影响力的技术。SMR 轨道彼此部分重叠，SMR 系统可以通过增加每英寸轨道密度来获得更高的面积密度。结果，这带来了更多来自相邻侧轨的干扰，即读取主轨时的轨间干扰（ITI）。在这封信中，我们有兴趣在记录之前将过滤过程应用于压缩的轨道，以提高检索数据的质量。预处理是为了减少来自侧轨的无用信号对主轨的影响。结果表明，即使在 ITI 的极其严重的影响下，SMR 系统的性能也得到了极大的提高。