An error rate emulation system [magnetic recording channel]

Author

Okazaki, Yutaka

Author_Institution

Sony Sendai Technol. Center, Miyagi, Japan

Volume

31

Issue

6

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

3093

Lastpage

3095

Abstract

This report describes a new method to emulate the magnetic recording channel. The use of asynchronous high frequency sampling eliminates the need for a phase locked loop circuit. By optimizing FIR filter tap weights with a least mean square algorithm, it has become possible to examine the signal-to-noise ratio of intrinsic head/media. Another method using the modulation spectrum to determine SNR is also described. The results suggest that both of methods will be a useful tool to help study high-density magnetic recording

Keywords

FIR filters; digital magnetic recording; equalisers; error statistics; least mean squares methods; magnetic recording noise; FIR filter tap weights; SNR; asynchronous high frequency sampling; error rate emulation system; high-density magnetic recording; least mean square algorithm; magnetic recording channel; modulation spectrum; signal-to-noise ratio; Circuits; Emulation; Error analysis; Finite impulse response filter; Frequency; Least mean square algorithms; Magnetic recording; Phase locked loops; Sampling methods; Signal to noise ratio;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.490280

Filename

490280