Analog complex graphic equalizer for EPR4 channels

Author

Park, Joshua C. ; Carley, L. Richard

Author_Institution

Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA

Volume

33

Issue

5

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

2785

Lastpage

2787

Abstract

A continuous-time analog adaptive equalizer for use in EPR4 channels in magnetic recording is presented. The equalizer is implemented as the summation of several bandpass filters covering different frequency bands as in a graphic equalizer. The outputs from each filter are weighted by a complex coefficient and summed, which results in a linear combiner structure guaranteed to minimize MSE under LMS adaptation. System-level simulations of our `Complex Graphic Equalizer (CGE)´ shows that its performance is comparable to that of a 10-tap FIR equalizer on an EPR4 channel

Keywords

adaptive equalisers; band-pass filters; least mean squares methods; magnetic recording; partial response channels; EPR4 channels; LMS adaptation; MSE; adaptive equalizer; analog complex graphic equalizer; bandpass filters; complex coefficient; linear combiner structure; magnetic recording; partial response channels; Adaptive equalizers; Band pass filters; Computer graphics; Equalizers; Finite impulse response filter; Frequency; Graphics; IIR filters; Least squares approximation; Magnetic recording; Magnetic separation; Nonlinear filters; Transversal filters;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.617730

Filename

617730