Advanced PRML data detector for high-density recording

Junghyun Lee; Jae-Wook Lee; Eun-Jin Ryu; Eing-Seob Cho; Maxim Konakov; Jae-Seong Shim; Hyun-Soo Park

doi:10.1117/12.557097

9 September 2004 Advanced PRML data detector for high-density recording

Junghyun Lee, Jae-Wook Lee, Eun-Jin Ryu, Eing-Seob Cho, Maxim Konakov, Jae-Seong Shim, Hyun-Soo Park

Proceedings Volume 5380, Optical Data Storage 2004; (2004) https://doi.org/10.1117/12.557097
Event: Optical Data Storage Topical Meeting, 2004, Monterey, California, United States

Abstract

An advanced PRML data recovery system is presented for a high-density recording. The system consists of three major hardware units, which are DC offset compensator, adaptive equalizer, and Viterbi detector with level adaptation scheme. The experiment based on an improved PRML scheme and FPGA hardware realization shows highly reliable performance of data detection up to 35GB recording density. The SER experiment result for 35GB shows that the detector using the proposed PRML yields a result to meet the SER limit of 4.0x10^-3 with a margin of 0.45° for tangential and 0.55° for radial tilt. And the base SER marks 7.0x10^-5 when there is no tangential and radial tilt error.

Citation Download Citation

Junghyun Lee, Jae-Wook Lee, Eun-Jin Ryu, Eing-Seob Cho, Maxim Konakov, Jae-Seong Shim, and Hyun-Soo Park "Advanced PRML data detector for high-density recording", Proc. SPIE 5380, Optical Data Storage 2004, (9 September 2004); https://doi.org/10.1117/12.557097

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