Patent ID: 8068564

Claim:
A method of impairment mitigation in a communications system, comprising: receiving a signal, at a receiver, wherein the received signal comprises a sequence of symbols, and wherein a first portion of the sequence comprises at least one select symbol; generating at least one error estimate of the received signal; determining a channel fidelity metric using the at least one error estimate; storing the channel fidelity metric; determining a transmit waveform using the channel fidelity metric; determining a first error estimate from the sequence of symbols; determining a second error estimate from a second portion of the sequence of symbols including the at least one select symbol; determining a third error estimate from a third portion of the sequence of symbols including the at least one select symbol; comparing the first error estimate to a first predetermined threshold, and the second and third error estimates to a second predetermined threshold; and erasing at least a portion of the at least one select symbol when the first error estimate is above the first predetermined threshold and when the second and third error estimates are above the second predetermined threshold.