Title :
Effect of Read Head Scaling on Servo and Data Signal Characteristics for Staggered Two-Row-per-Track Bit-Patterned-Media Recording
Author :
Zhang, Songhua ; Chen, Bingjin ; Wong, Wai-Ee ; Lin-Yu, Maria ; Liu, Zhejie
Author_Institution :
Storage Inst., Agency for Sci., Technol. & Res. (A*STAR), Singapore, Singapore
fDate :
6/1/2010 12:00:00 AM
Abstract :
In this paper, we investigate the effect of read head profile on the playback signal from data and servo sector in a staggered bit-patterned-media recording system. The scaling of the read head is targeted to achieve better data signal quality while such scaling is shown to have negative effect on the servo signal. A secondary servo burst that uses data samples to generate supplementary PES is then proposed and its feasibility is demonstrated.
Keywords :
hard discs; magnetic heads; magnetic recording; servomechanisms; data signal characteristics; position error signal; read head scaling; servo control; two-row-per-track bit-patterned-media recording; Disk recording; Error correction; Hard disks; Magnetic heads; Memory; Sensor phenomena and characterization; Servomechanisms; Servosystems; Signal design; Signal processing; Bit-patterned media recording; position error signal; servo control;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2010.2042688
