Patent ID: 8428197

Claim:
An apparatus comprising: a channel impulse response (CIR) generator to generate a time-domain windowed CIR from a received signal using a window function; a thresholder coupled to the CIR generator to threshold the time-domain windowed CIR; and a compensator coupled to the thresholder to compensate, in the time-domain, for window effect of the thresholded time-domain windowed CIR to provide an enhanced channel estimate, wherein the compensator comprises: a cluster generator coupled to the thresholder to generate a compensating vector of components in the thresholded time-domain windowed CIR; a window compensator to generate a window compensated vector from the compensating vector using a pre-determined inverse matrix of the window function having dimensions corresponding to a length of the compensating vector; and a frequency-domain processor coupled to the window compensator to compute a frequency-domain vector from the window compensated vector, wherein the frequency-domain vector is the enhanced channel estimate.