卷积码的维特比译码，约束长度为9，分别采用硬判决和软判决实现

max-log-map算法的C语言的实现，能计算出所需要的LLR，做出软判决和硬判决。,max-log-map algorithm for the realization of the C language, can be required to calculate LLR, make a hard decision and soft decision.

软判决译码，是信道编码方面很好的资料，ｃ语言代码实现！-Soft decision decoding, channel coding is very good information, c language code!