Patent ID: 8325790

Claim:
A system for determining equalization coefficients for an OFDM symbol stream, the system comprising: a channel-processing module for processing a channel impulse-response vector to obtain coarse and fine mask vectors, the channel-processing module comprising: (i) a threshold module for identifying non-zero values in the channel impulse-response vector that are greater than or equal to a predetermined threshold, (ii) a window module for defining a coarse set of non-overlapping windows covering the identified non-zero values in the channel impulse-response vector, wherein each window includes at least one identified non-zero value, and (iii) a movement module for moving a coarse set window within a predetermined range to obtain a fine set of non-overlapping windows; a coefficient module for calculating a coarse equalization coefficient vector based on the coarse mask vector and a line equalization coefficient vector based on the fine mask vector; and a selection module for selecting one of the equalization coefficient vectors based on a selection criterion.