从先验概率中采样，计算权重，预报误差法参数辨识-松弛的思想，是学习PCA特征提取的很好的学习资料，Matlab实现界面友好，现代信号处理中谱估计在matlab中的使用，用MATLAB实现的压缩传感，有PMUSIC 校正前和校正后的比较。

- Sampling　a priori probability, calculate the weight, Prediction Error Method for Parameter Identification- the idea of relaxation, Is a good learning materials to learn PCA feature extraction, Matlab to achieve user-friendly, Modern signal processing used in the spectral estimation in matlab, Using MATLAB compressed sensing, A relatively before correction and after correction PMUSIC.