外文资料里面的源代码，分析了该信号的时域、频域、倒谱，循环谱等,用于特征降维，特征融合，相关分析等,FIR 底通和带通滤波器和IIR 底通和带通滤波器，最终的权值矩阵就是滤波器的系数，LDPC码的完整的编译码。-Foreign materials inside the source code, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. For feature reduction, feature fusion, correlation analysis, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, The final weight matrix is ??the filter coefficient, Complete codec LDPC code.