利用哈夫曼编码进行通信可以大大提高信道利用率，缩短信息传输时间，降低传输成本，试设计一个哈夫曼编码系统-Huffman coding communication can greatly improve the channel utilization, shorten the time of transmission of information to reduce the transmission cost, try to design a Huffman coding system

matlab implements five gray correlation degree computing model, Channel coding, modulation, channel estimation, LM386 audio signal amplification.