Patent ID: 7203231

Claim:
A method for a equalization of a signal received by a receiver after the signal has traveled through a transmission channel, the signal including at least one data block and several probes located on either side of the data block, the method comprising the steps of: estimating an impulse response of the channel before and after a data block n; and taking account of the probes (Probe n−1 and Probe n) located on either side of the data block n and also of the probes that precede and follow the Probes n−1 and Probe n, weighting and combining said probes being with one another, further comprising a step obtaining a coefficients used for a smoothing of the probes are obtained by minimizing a mean square error of a interpolation error E ⁡ ( θ ) = | ∑ i = 0 M - 1 ⁢ ⁢ a i ⁢ ⅇ j ⁢ ⁢ θ ⁡ ( k 0 + ⅈ ) - ⅇ j ⁢ ⁢ x ⁢ ⁢ θ ⁢ | 2 where θ is a phase rotation, included between two extreme values −A and +A that depend on a speed of variation of a transfer function of the channel: wherein, the phase rotation between two positions is equal to A at most in terms of absolute value (A<π): M=k 1 −k 0 +1: 0≦×≦1: k 0 +i=different signal positions: and a=real coefficients between α 0 . . . M−1 .