A receiver system contains an analog pre-filter (207 or 619), an
analog-to-digital converter (210), a digital equalizer (212), and a
decoder (605) arranged sequentially for processing an input analog signal
(y.sub.k). The pre-filter produces a filtered analog signal (Z.sub.s)
with reduced intersymbol interference. The converter provides
analog-to-digital signal conversion. Digital equalization circuitry in
the equalizer operates according to a transfer
frmnction.times..times..times. ##EQU00001## to produce an equalized
digital signal (a'.sub.k) as a stream of equalized digital values.
Coefficients c.sub.-1 and c.sub.0 are fixed. Each other coefficient
c.sub.i is adaptively chosen. The decoder converts the equalized digital
values, or intermediate values generated therefrom, into a stream of
symbols. A receiver system may include two or more receivers each
configured in the foregoing way with the digital equalization circuitry
in each receiver operating according to a transfer function.times..times.
##EQU00002## where at least coefficients c.sub.-1, c.sub.0, and c.sub.1
are non-zero.