Patent ID: 7212569

Claim:
A method for processing a received time domain signal representing a sequence of channel symbols, the method comprising matched-channel filtering a frequency domain representation R(f) of the received signal to generate a frequency domain representation X MF (f), linear equalizing said frequency domain representation X MF (f) to generate a linear equalized frequency domain representation X LE (f), combining said frequency domain representation X MF (f) of the received signal with a frequency domain estimate ISI(f) of intersymbol interference in said representation X MF (f) to generate an ISI-mitigated frequency-domain representation X DFE (f) of said received signal, said estimate ISI(f) being a function of a frequency domain representation {circumflex over (X)} LE (f) of tentative decisions as to the channel symbols, said tentative decisions being formed as a function of said representation X LE (f), and generating final decisions as to the channel symbols as a function of said representation X DFE (f).