| US 7,561,647 B2 | ||
| Equalising and decoding device for frequency-selective channels | ||
| Christophe Laot, Plougonvelin (France); and Joel Labat, Plougastel Daoulas (France) | ||
| Assigned to France Telecom, Paris (France); and Groupe des Eccles des Telecommunications (Enst Brentagne), Paris (France) | ||
| Appl. No. 10/471,139 PCT Filed Mar. 05, 2002, PCT No. PCT/FR02/00783 § 371(c)(1), (2), (4) Date Sep. 04, 2003, PCT Pub. No. WO02/071712, PCT Pub. Date Sep. 12, 2002. |
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| Claims priority of application No. 01 03012 (FR), filed on Mar. 06, 2001. | ||
| Prior Publication US 2004/0120432 A1, Jun. 24, 2004 | ||
| Int. Cl. H04B 1/10 (2006.01) | ||
| U.S. Cl. 375—350 [375/232] | 10 Claims |
| 8. A channel equalization and decoding device comprising:
a series of modules each including a decoder with weighted outputs, a module of rank p=1 receives a string of samples emanating
from a sensor and whose modules of rank p greater than 1 receive, on the one hand, the string of samples emanating from the
sensor and delayed by a quantity equal to the processing time of the previous modules, and, on the other hand, the output
of the previous module
wherein the module of rank 1 further receives at least one other string emanating from another sensor and the modules of rank
p greater than 1 receive said at least one other string of samples emanating from the other sensor and delayed by a quantity
equal to the processing time of the modules of rank 1 to p−1, the at least two strings of samples being different and an equalizer
to determine one and the same equalized string of samples by utilizing the at least two strings received as two unequalized
different representations of the string of samples to be determined, the equalizer (10) of each module comprises:
a bank (11) of at least two transverse filters fed respectively with said at least two sample strings received,
an adder (12) placed downstream of the filter bank (11),
another transverse filter (13) fed by an output of the previous module, and
means for subtracting a sample string obtained from the output of the adder to a sample string obtained from the output of
the other transverse filter.
|