TY - JOUR
T1 - Reproduced waveform and bit error rate analysis of a patterned perpendicular medium R/W channel
AU - Suzuki, Y.
AU - Saito, H.
AU - Aoi, H.
AU - Muraoka, H.
AU - Nakamura, Y.
N1 - Funding Information:
This work was partly supported from the IT program RR2002 of MEXT of Japan.
PY - 2005/5/15
Y1 - 2005/5/15
N2 - Patterned media were investigated as candidates for 1 Tb in.2 recording. In the case of recording with a patterned medium, the noise due to the irregularity of the pattern has to be taken into account instead of the medium noise due to grains. The bit error rate was studied for both continuous and patterned media to evaluate the advantages of patterning. The bit aspect ratio (BPI/TPI) was set to two for the patterned media and four for the continuous medium. The bit error rate (BER), calculated with a PR(1,1) channel simulator, indicated that for both double layered and single layered patterned media an improvement of the BER over conventional continuous media is expected when the patterning jitter is controlled to within 8%. When the system noise is large the BER of single layered patterned media deteriorates more rapidly than that of double layered media, due to the higher boost in the PR(1,1) channel. It was found that making the land length to bit length ratio large was quite effective at improving BER.
AB - Patterned media were investigated as candidates for 1 Tb in.2 recording. In the case of recording with a patterned medium, the noise due to the irregularity of the pattern has to be taken into account instead of the medium noise due to grains. The bit error rate was studied for both continuous and patterned media to evaluate the advantages of patterning. The bit aspect ratio (BPI/TPI) was set to two for the patterned media and four for the continuous medium. The bit error rate (BER), calculated with a PR(1,1) channel simulator, indicated that for both double layered and single layered patterned media an improvement of the BER over conventional continuous media is expected when the patterning jitter is controlled to within 8%. When the system noise is large the BER of single layered patterned media deteriorates more rapidly than that of double layered media, due to the higher boost in the PR(1,1) channel. It was found that making the land length to bit length ratio large was quite effective at improving BER.
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U2 - 10.1063/1.1853695
DO - 10.1063/1.1853695
M3 - Article
AN - SCOPUS:20944446023
VL - 97
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 10
M1 - 10P108
ER -