TY - JOUR
T1 - A Study of TDMR signal processing opportunities based on quasi-micromagnetic simulations
AU - Vasic, Bane
AU - Khatami, Mehrdad
AU - Nakamura, Yasuaki
AU - Okamoto, Yoshihiro
AU - Kanai, Yasushi
AU - Barry, John R.
AU - McLaughlin, Steven W.
AU - Sadeghian, Elnaz Banan
N1 - Publisher Copyright:
© 1965-2012 IEEE.
PY - 2015/4/1
Y1 - 2015/4/1
N2 - This paper presents the results of a comprehensive study of the shingled writing process and various signal processing and data detection approaches applied to the readback waveforms. The recording simulations include realistic head fields, a random granular media, magnetostatic and exchange interactions, and a READ head sensitivity function. Readback waveforms are examined in both one and two dimensions in terms of signal characteristics (linear and nonlinear), noise behavior (stationary and signal-dependent), and intertrack interference. Different equalization and detection approaches are compared and about a 10% density gain is reported for such 2-D magnetic recording compared with traditional single-track recording. These gains depend strongly on the number of readers, the reader positioning, and the reader width.
AB - This paper presents the results of a comprehensive study of the shingled writing process and various signal processing and data detection approaches applied to the readback waveforms. The recording simulations include realistic head fields, a random granular media, magnetostatic and exchange interactions, and a READ head sensitivity function. Readback waveforms are examined in both one and two dimensions in terms of signal characteristics (linear and nonlinear), noise behavior (stationary and signal-dependent), and intertrack interference. Different equalization and detection approaches are compared and about a 10% density gain is reported for such 2-D magnetic recording compared with traditional single-track recording. These gains depend strongly on the number of readers, the reader positioning, and the reader width.
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U2 - 10.1109/TMAG.2014.2356455
DO - 10.1109/TMAG.2014.2356455
M3 - Article
AN - SCOPUS:84930505977
SN - 0018-9464
VL - 51
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
IS - 4
M1 - 7109973
ER -