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Opposite Partial Response Filter for Shingled Magnetic Recording Systems

Nguyen, C.D. and Nguyen, T.P. and Lam, S.C. (2020) Opposite Partial Response Filter for Shingled Magnetic Recording Systems. IEEE Magnetics Letters, 11: 9122559. ISSN 1949307X

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Abstract

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. © 2010-2012 IEEE.

Item Type: Article
Divisions: Faculties > Faculty of Radio-Electronic Engineering
Identification Number: 10.1109/LMAG.2020.3004298
Uncontrolled Keywords: Magnetism; Recording instruments; Area density; Filtering process; Inter-track interferences; Magnetic recording systems; Partial response; Shingled magnetic recording (SMR); Shingled magnetic recordings; System's performance; Magnetic recording
Additional Information: Language of original document: English.
URI: http://eprints.lqdtu.edu.vn/id/eprint/9139

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