Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2016
Session Number:M2-3
Session:
Number:M2-3-1
Estimate Track Mis-registration Levels using an Energy Ratio Finding Technique in Bit-Patterned Media Recording Systems
Wuttipong Ruksavong, Wiparat Busyatras, Chanon Warisarn, Lin M.M. Myint, Piya Kovintavewat ,
pp.163-165
Publication Date:2016/7/10
Online ISSN:2188-5079
Summary:
Track mis-registration (TMR) is one of the undesirable effects in the ultra-high magnetic recording systems. Pragmatically, this effect has been handled from the servo system using the redundancy bits to identify the TMR levels, which requires some recording areas to store these redundancy bits. However, this paper proposes the energy ration finding technique based on the two readback signals to estimate the TMR levels in two-track two-head (2T2H) bit-patterned media recording (BPMR) systems. Then, the TMR effect is also corrected using the appropriate equalizers, which designed according to the estimated TMR levels. Simulation results indicate that the proposed technique can impressively estimate the TMR level and also yield the better performance than the conventional method especially when the TMR is large.