Patent ID: 7409024

Claim:
A process for providing a phase synchronization of a pilot aided carrier of an input digital signal z(k), said signal z(k) comprising signal fields comprised of L s symbol signals, namely a block of L P pilot symbol signals Z P (k) and a data field of (L s −L P ) data symbol signals Z d (k) , k s being a symbol index for phase correction estimates, k s =0 corresponding to the pilot block, and characterized in that it comprises for each signal field (l): extracting the pilot symbol signals Z P (k) and calculating an unwrapped phase estimate {circumflex over (θ)}(lL,) over the pilot block of said signal field (l) and: interpolating said unwrapped phase estimates of successive signal fields (l, l+1 . . . . ) only for k s =0 with a Wiener interpolator having M taps to obtain interpolated phase estimates having a Minimum Mean Square Error; providing linear interpolation between said interpolated phase estimates to obtain phase correction estimates ({circumflex over (θ)}(k s )) over the data field of said signal fields; calculating from said phase correction estimates ({circumflex over (θ)}(k s )) a phase correction (e −j{circumflex over (θ)}(k s ) ) to be applied to said signal z(k).