对随机序列进行（7,4）汉明码编码，经过bpsk调制解调，然后译码，最后绘出信噪比与误码率的关系曲线-Random sequences (7,4) hamming code encoding, after bpsk modem, and then decoding, and finally draw the signal to noise ratio and bit error rate curve

汉明码通过整个通信链路，利用BPSK方式调制解调，加入白噪声。-Hamming code through the communication link, using the way of BPSK modulation demodulation, add white noise.