H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 7/04 (2006.01) H04B 7/005 (2006.01) H04L 27/00 (2006.01)
Patent
CA 2475899
The Invention relates to a process for providing a phase synchronization of a pilot aided carrier of an input digital signal z(k), said signal a(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), and characterized in that it comprised for each signal field (l): - extracting the pilot symbol signals Z p (k) and - calculating an unwrapped phase estimate ~(IL S) over the pilot block of said signal field (l) and - interpolating said unwrapped phase estimates of successive signal fields (l, l + 1 ....) 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 (~(k s)) over the data field of said signal fields; - calculating from said phase correction estimates (~(k s)) a phase correction (e-j~(k s)) to be applied to said signal Z(k).
Bigi Alan
de Gaudenzi Riccardo
Fittipaldi Domenico
Ginesi Alberto
Agence Spatiale Europeenne
Macpherson Leslie & Tyerman Llp
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