A receiver includes a filter stage that receives, filters, and equalizes a
received signal, and a decisional feedback loop coupled to the filter
stage that receives and processes a signal output from the filter stage
using remodulation. The decisional feedback loop includes a converter
that generates a baseband signal, a detector that generates a decision
signal, a restorative signal generator that generates a restorative
signal using remodulation, and a carrier loop that generates a frequency
correction signal and provides a frequency-offset estimate. The
restorative signal and the frequency correction signal are provided to
the converter to compensate for inter-symbol interference. The presented
"remodulation" technique decouples interaction between the carrier loop,
the pre-filters, and the equalizer of the restorative signal generator,
providing an architecture that is more stable and significantly faster
than conventional architectures.