说明：  本论文主要利用MATLAB实现一个简单无线通信系统的仿真，并通过误码率分析系统性能。在文本文件中输入任意字符串(空格或英文字母)作为该通信系 统的信源，经过信源编码、信道编码及信号调制进入信道，信道采用的是瑞利衰落信道，而后对接收到的信号进行解调，完成信道解码、信源解码后，将结果输出到解码文件即信宿中。
(In this thesis, a simple wireless communication system simulation using MATLAB and analyze system performance through the bit error rate. In a text file input any string (spaces or English letters) as the communication system of the letter source, source coding, channel coding and signal modulation into the channel, the channel using the Rayleigh fading channel, the signal is received and then docking demodulates the completion of the channel decoding, source decoding, the result is output to decode the file, i.e. the sink.)