Performance limitation of subband adaptive equalisers
نویسندگان
چکیده
Introduction: Adaptive equalisers have been widely employed to mitigate the effect of intersymbol interference (ISI) and to retrieve a transmitted signal u[n] from a distorted received copy x[n] at the output of a channel c[n] in the presence of channel noise v[n], whereby Fig. 1 illustrates a general block diagram for channel equalisation [1]. For a minimum mean square equaliser (MMSE), adaptive algorithms can be employed to adapt the equaliser w[n] by minimising the error between the received signal y[n] and the training sequence d[n].
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