用于LDPC编码译码的仿真实现。包括随机生成校验矩阵、由校验矩阵产生生成矩阵、编码、加随机噪声、译码等内容。原作者是老外，有部分中文注释。-LDPC coding for decoding Simulation. Check including random matrix generated by the calibration matrix generated generator matrix, coding, plus random noise, such as decoding. The