Patent ID: 7809046

Claim:
A method for processing a modulated signal having a cyclic prefix, the method comprising: (a) generating, by a timing-offset estimator, individual correlation values for the modulated signal; (b) generating a stream of combined weighted correlation values from the individual correlation values, wherein: each combined weighted correlation value corresponds to a combination of a different set of weighted correlation values; each set of weighted correlation values corresponds to a set of weights applied to a different set of the individual correlation values; the weights in a first subset of the set of weights ascend linearly from a first minimum value to a peak value; and the weights in a second subset of the set of weights descend linearly from the peak value to a second minimum; (c) identifying a peak value based on the stream of combined correlation values; and (d) generating a timing-offset estimate corresponding to the cyclic prefix based on the identified peak value.