整合了目前pudn网站上的一些资源，利用PEG算法生成H矩阵，转换成为G矩阵，从而进行高斯编码，BPSK调制。BP迭代的方法解码，解调后进行不同SNR条件下的BER仿真。从而得到误码率曲线。(Some resources on the pudn website are integrated, and the PEG algorithm is used to generate H matrix and convert into G matrix, so as to carry out Gauss coding and BPSK modulation. The BP iterative method decodes and demodulates the BER simulation under different SNR conditions. The error rate curve is obtained.)