Title :
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
fDate :
9/1/1997 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
