包括最小二乘法、SVM、神经网络、1_k近邻法,现代信号处理中谱估计在matlab中的使用，添加噪声处理，包括脚本文件和函数文件形式，LDPC码的完整的编译码，有信道编码，调制，信道估计等，基于互功率谱的时延估计。- Including the least squares method, the SVM, neural networks, 1 _k neighbor method, Modern signal processing used in the spectral estimation in matlab, Add noise processing, Including scr ipt files and function files in the form, Complete codec LDPC code, Channel coding, modulation, channel estimation, Based on the time delay estimation of power spectrum.