Please use this identifier to cite or link to this item: https://doi.org/10.1109/TMAG.2005.860308
Title: Joint design of optimum partial response target and equalizer for recording channels with jitter noise
Authors: Yang, H.
Mathew, G. 
Keywords: Media noise
Partial response target design
Perpendicular magnetic recording
Transition jitter
Issue Date: Jan-2006
Citation: Yang, H., Mathew, G. (2006-01). Joint design of optimum partial response target and equalizer for recording channels with jitter noise. IEEE Transactions on Magnetics 42 (1) : 70-77. ScholarBank@NUS Repository. https://doi.org/10.1109/TMAG.2005.860308
Abstract: We address joint design of optimum generalized partial response (GPR) target and equalizer for perpendicular recording channels with jitter noise. We develop a new cost function which accounts for the data-dependent nature of jitter noise based on the minimum mean square error (MMSE) criterion. Using the step-response-based channel model, we derive expressions for the statistics required to compute the optimum equalizer and target in the presence of jitter noise. We also derive a bit-response-based model for the jitter noise channel. We present an approach for doing simulations as well as analytical computations for the jitter noise channel without resorting to the widely used Taylor series approximations. Our computational and simulation results show that, while the targets designed without accounting for the jitter lead to error-floor effect in the bit-error-rate performance, the targets designed by our approach give significant performance improvement under high jitter conditions, with no sign of error-floor effect for the range of signal-to-noise ratios considered. © 2005 IEEE.
Source Title: IEEE Transactions on Magnetics
URI: http://scholarbank.nus.edu.sg/handle/10635/56439
ISSN: 00189464
DOI: 10.1109/TMAG.2005.860308
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