A channel equalizer for a single-carrier receiver interacting with a
Trellis decoder and a channel equalization method therefor. The channel
equalizer includes a first equalizer having a first feed forward (FF)
unit for eliminating a pre-ghost of an input signal and a first feedback
(FB) unit for eliminating a post-ghost of the input signal, a Trellis
decoder for Trellis-decoding an output signal of the first equalizer, and
a second equalizer having a second FF unit for eliminating the pre-ghost
of the input signal and a second FB unit for eliminating the post-ghost
of the input signal based on a signal decoded by the Trellis decoder. The
first and second equalizers, interacting with the Trellis decoder, enable
the equalization performance and speed of the channel equalizer to be
enhanced.