中文说明： LDPC码的完整的编译码，可直接计算得到多重分形谱,供做算法研究人员参考，是学习PCA特征提取的很好的学习资料，单径或多径瑞利衰落信道仿真，采用了小波去噪的思想。
English Description：
The complete decoding of LDPC codes can be directly computed multifractal spectrum, for reference of research, feature extraction of PCA are learning good study material, diameter/multipath Rayleigh fading channel simulation using Wavelet denoising of thought.