Method and device for the reception of signals affected by...

Details Method and device for the reception of signals affected by... Method and device for the reception of signals affected by...

H - Electricity

04

L

H04L 1/00 (2006.01) H03M 13/41 (2006.01) H03M 13/45 (2006.01) H04L 25/03 (2006.01) H04L 27/38 (2006.01)

Patent

CA 2169709

For the reception of TCM modulated signals a receiver is used which comprises two cascaded Viterbi decoders (1, 2). The first decoder (1) operates according to a soft output Viterbi algorithm (SOVA), and its output comprises a hard decision on the transmitted symbols as well as a reliability parameter. The output of the first decoder (1), which is intended essentially totake into account the memory effects of the channel by contrasting the influence of inter-symbol interference, is fed, possibly after a de-interleavingaction, to the second Viterbi decoder (2) which carries out the actual decision.Preferred application to digital communication systems such as microwave radio links.

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