Patent ID: 8224278

Claim:
A method of suppressing interference from a signal transmitted over a communication channel including transmit and receive pulse shaping filters and a radio channel, the method comprising: generating net channel coefficients for the communication channel at processing delays; generating medium channel coefficients for the radio channel at estimated path delays as a function of the net channel coefficients; regenerating the net channel coefficients at arbitrary delays as a function of the medium channel coefficients; generating an impairment covariance estimate based at least in part on the regenerated net channel coefficients for use in suppressing interference from the signal; superimposing a filter response associated with both the transmit and receive pulse shaping filters on each of the medium channel coefficients at the corresponding estimated path delay to yield a composite response centered at each of the estimated path delays; combining the different composite responses to yield an overall net channel response waveform for the entire communication channel; and regenerating the net channel coefficients based on values of the overall net channel response waveform at the arbitrary delays.