Performance of Advanced Data-Detection Schemes on Barium-Ferrite Particulate Media
Noise-predictive maximum likelihood (NPML) detection has become state of the art in modern hard-disk drive (HDD) systems. Tape drive systems, in contrast, have typically adopted a traditional partial-response maximum likelihood detection approach, a fact that mainly reflects the large disparity in a...
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| Veröffentlicht in: | IEEE transactions on magnetics 2009-10, Vol.45 (10), p.3765-3768 |
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| container_title | IEEE transactions on magnetics |
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| creator | Olcer, S. Eleftheriou, E. Hutchins, R.A. Noguchi, H. Asai, M. Takano, H. |
| description | Noise-predictive maximum likelihood (NPML) detection has become state of the art in modern hard-disk drive (HDD) systems. Tape drive systems, in contrast, have typically adopted a traditional partial-response maximum likelihood detection approach, a fact that mainly reflects the large disparity in areal recording density between tape drives and HDDs. However, tape drive systems maintain a growth rate in areal recording density that is similar to that of HDDs, which implies that in future tape storage systems also advanced detection schemes need to be employed. This paper investigates the performance achieved by NPML, in particular, data-dependent NPML for data detection on barium-ferrite (BaFe) particulate tape media. Using actual readback waveforms, it is found that these advanced detection techniques are fairly efficient in improving the bit-error-rate performance of the read channel. Therefore, they enable, in combination with the BaFe media, a significant increase in linear recording density over that of state-of-the-art tape systems. |
| doi_str_mv | 10.1109/TMAG.2009.2023620 |
| format | Article |
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Tape drive systems, in contrast, have typically adopted a traditional partial-response maximum likelihood detection approach, a fact that mainly reflects the large disparity in areal recording density between tape drives and HDDs. However, tape drive systems maintain a growth rate in areal recording density that is similar to that of HDDs, which implies that in future tape storage systems also advanced detection schemes need to be employed. This paper investigates the performance achieved by NPML, in particular, data-dependent NPML for data detection on barium-ferrite (BaFe) particulate tape media. Using actual readback waveforms, it is found that these advanced detection techniques are fairly efficient in improving the bit-error-rate performance of the read channel. 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Tape drive systems, in contrast, have typically adopted a traditional partial-response maximum likelihood detection approach, a fact that mainly reflects the large disparity in areal recording density between tape drives and HDDs. However, tape drive systems maintain a growth rate in areal recording density that is similar to that of HDDs, which implies that in future tape storage systems also advanced detection schemes need to be employed. This paper investigates the performance achieved by NPML, in particular, data-dependent NPML for data detection on barium-ferrite (BaFe) particulate tape media. Using actual readback waveforms, it is found that these advanced detection techniques are fairly efficient in improving the bit-error-rate performance of the read channel. Therefore, they enable, in combination with the BaFe media, a significant increase in linear recording density over that of state-of-the-art tape systems.</description><subject>Barium-ferrite (BaFe)</subject><subject>Channels</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>data-dependent detection</subject><subject>Density</subject><subject>Drives</subject><subject>Exact sciences and technology</subject><subject>Hard disks</subject><subject>Information storage</subject><subject>Laboratories</subject><subject>Magnetic films</subject><subject>Magnetic noise</subject><subject>Magnetic properties</subject><subject>Magnetic recording</subject><subject>Magnetic tape</subject><subject>Magnetism</subject><subject>Materials science</subject><subject>Maximum likelihood detection</subject><subject>Media</subject><subject>Noise reduction</subject><subject>noise-predictive maximum likelihood (NPML)</subject><subject>Other topics in materials science</subject><subject>particulate media</subject><subject>Performance enhancement</subject><subject>Physics</subject><subject>Recording</subject><subject>Signal processing</subject><subject>State of the art</subject><subject>Storage systems</subject><subject>Tape drives</subject><subject>tape storage</subject><subject>Waveforms</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkE1LxDAQhoMouH78APFSBMFLNZMm2ea4fguK4sc5zKYTjLRbTVrBf2-WXTx4Sd5hnhmGh7ED4KcA3Jy9PsxuTgXnJj-i0oJvsAkYCSXn2myyCedQl0Zquc12UvrIpVTAJ-z5iaLvY4cLR0Xvi1nzvYxNcYkDlpc0kBtCvyhe3Dt1lIoczzGGsSuvKcYwUPGEcQhubDHnB2oC7rEtj22i_fW_y96ur14vbsv7x5u7i9l96aSAodRN7blHR-A0gZmjaIwkakTtcI5SOhBOmrk0oDXW0niYi8p5WSsxRaFEtctOVns_Y_81UhpsF5KjtsUF9WOyUGkFlZJKZvToH_rRj3GRr7O10gaMgGmGYAW52KcUydvPGDqMPxa4XUq2S8l2KdmuJeeZ4_ViTA5bH7O8kP4GhRDZMtSZO1xxgYj-2kqoKVS8-gWT5YQX</recordid><startdate>20091001</startdate><enddate>20091001</enddate><creator>Olcer, S.</creator><creator>Eleftheriou, E.</creator><creator>Hutchins, R.A.</creator><creator>Noguchi, H.</creator><creator>Asai, M.</creator><creator>Takano, H.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Tape drive systems, in contrast, have typically adopted a traditional partial-response maximum likelihood detection approach, a fact that mainly reflects the large disparity in areal recording density between tape drives and HDDs. However, tape drive systems maintain a growth rate in areal recording density that is similar to that of HDDs, which implies that in future tape storage systems also advanced detection schemes need to be employed. This paper investigates the performance achieved by NPML, in particular, data-dependent NPML for data detection on barium-ferrite (BaFe) particulate tape media. Using actual readback waveforms, it is found that these advanced detection techniques are fairly efficient in improving the bit-error-rate performance of the read channel. 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| subjects | Barium-ferrite (BaFe) Channels Cross-disciplinary physics: materials science rheology data-dependent detection Density Drives Exact sciences and technology Hard disks Information storage Laboratories Magnetic films Magnetic noise Magnetic properties Magnetic recording Magnetic tape Magnetism Materials science Maximum likelihood detection Media Noise reduction noise-predictive maximum likelihood (NPML) Other topics in materials science particulate media Performance enhancement Physics Recording Signal processing State of the art Storage systems Tape drives tape storage Waveforms |
| title | Performance of Advanced Data-Detection Schemes on Barium-Ferrite Particulate Media |
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