The viterbi decoding algorithm , proposed in 1967 by viterbi , and it ’ s proved that viterbi decoding algorithm is the maximum likelihood decoder algorithm of convolution code and it has excellent decode performance Viterbi譯碼算法在1967年由viterbi提出,經證明它是卷積碼譯碼得最大似然譯碼算法,具有優異的譯碼性能。