Viterbi decoding method and apparatus with balance among memory

Details Viterbi decoding method and apparatus with balance among memory Viterbi decoding method and apparatus with balance among memory

1996-07-22

1998-07-28

Tse, Young T.

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

371 434, 371 437, 371 438, H03M 700, H04L 2706

Patent

active

057871272

ABSTRACT:
A Viterbi decoding method and apparatus employ a path memory describing paths with a length of X.multidot.N branches, where N is a fixed positive integer, and X has a fixed value not less than two. One path is selected and retraced over its X.multidot.N branches, and the least recent (X-1).multidot.N branches are also traced forward and decoded; then the least recent (X-1).multidot.N branches of each path in the path memory are replaced with new path information. This process is repeated up to the end of the data to be decoded.

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