实现viterbi译码，通过比较最小汉明距来判别最佳路径，删除不必要的路径，最终找到最佳路径。-Implement viterbi decoding, by comparing the minimum hamming distance to distinguish the best path, delete unnecessary path, finally find the best path.

实现viterbi译码，通过比较最小汉明距来判别最佳路径，删除不必要的路径，最终找到最佳路径。-Implement viterbi decoding, by comparing the minimum hamming distance to distinguish the best path, delete unnecessary path, finally find the best path.