Adaptive equalization教程-Adaptive equalizers compensate for signal distortion

attributed to intersymbol interference (ISI), which is

caused by multipath within time-dispersive channels.

􀂃　Typically employed in high-speed communication

systems, which do not use differential modulation

schemes or frequency division multiplexing

􀂃　The equalizer is the most expensive component of a data

demodulator and can consume over 80　of the total

computations needed to demodulate a given signal [01]

Adaptive Equalization

KEVIN BANOVIC Slide 3

RESEARCH CENTRE FOR INTEGRATED MICROSYSTEMS – UNIVERSITY OF WINDSOR

EQUALIZATION TUTORIAL

Channel

Equalizer

Adjustment

FIR

Equalizer

Decision

Device

Error

Computation

s k ( ) y k ( )

e k ( )

r k ( ) s k ( )

Training

Sequence

Symbol

Statistics

Blind Mode

Decision-Directed

Mode Training Mode

Adaptive Equalization