实现（2，1，6）卷积码的维比特译码源程序，采用了最大似然算法

介绍了软判决维特比译码算法过程的三个步骤：初始化，度量更新和回溯译码

-Achieve (2,1,6) convolutional code Viterbi decoder source code, using the maximum likelihood algorithm for soft decision Viterbi decoding algorithm process three steps: initialization, metric updating and backtracking translation code