A TMR Mitigation Method Based on Readback Signal in Bit-Patterned Media Recording

DOI Web Site 参考文献7件
  • BUSYATRAS Wiparat
    College of Data Storage Innovation (D*STAR), King Mongkut's Institute of Technology Ladkrabang
  • WARISARN Chanon
    College of Data Storage Innovation (D*STAR), King Mongkut's Institute of Technology Ladkrabang
  • MYINT Lin M. M.
    School of Information Technology, Shinawatra University
  • KOVINTAVEWAT Piya
    Data Storage Technology Research Center, Nakhon Pathom Rajabhat University

抄録

Track mis-registration (TMR) is one of the major problems in high-density magnetic recording systems such as bit-patterned media recording (BPMR). In general, TMR results from the misalignment between the center of the read head and that of the main track, which can deteriorate the system performance. Although TMR can be handled by a servo system, this paper proposes a novel method to alleviate the TMR effect, based on the readback signal. Specifically, the readback signal is directly used to estimate a TMR level and is then further processed by the suitable target and equalizer designed for such a TMR level. Simulation results indicate that the proposed method can sufficiently estimate the TMR level and then helps improve the system performance if compared to the conventional receiver that does not employ a TMR mitigation method, especially when an areal density is high and/or a TMR level is large.

収録刊行物

参考文献 (7)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ