Title :
Performance evaluation of MDFE with a simplified feedforward filter
Author :
Kato, Takatoshi ; Kimura, Hiroshi ; Nara, Takashi ; Nishiya, Takushi
Author_Institution :
Syst. Dev. Lab., Hitachi Ltd., Yokohama, Japan
fDate :
9/1/1999 12:00:00 AM
Abstract :
We describe a new robust feedforward filter (FFF) for multi-level decision feedback equalization (MDFE) which has only four poles and one zero. This FFF has low complexity and low power consumption. We evaluate the performance degradation caused by the dispersion of the FFF. With updating the feedback filter (FBF), there is a 0.2-dB loss or less in the required SNR, even though the Qs or pole frequencies are degraded within +/-10%
Keywords :
continuous time filters; decision feedback equalisers; feedforward; magnetic recording; performance evaluation; poles and zeros; MDFE; SNR; continous time filter; dispersion; low complexity; low power consumption; magnetic recording; multi-level decision feedback equalization; performance degradation; performance evaluation; pole frequencies; robust feedforward filter; simplified feedforward filter; Bit error rate; Decision feedback equalizers; Degradation; Energy consumption; Field-flow fractionation; Finite impulse response filter; Frequency; Magnetic recording; Magnetic separation; Poles and zeros;
Journal_Title :
Magnetics, IEEE Transactions on
