能量熵的计算，主同步信号PSS在时域上的相关仿真，进行逐步线性回归，随机调制信号下的模拟ppm，是学习PCA特征提取的很好的学习资料，解耦，恢复原信号，重要参数的提取。- Energy entropy calculation, PSS primary synchronization signal in the time domain simulation related, Stepwise linear regression, Random ppm modulated analog signal under Is a good learning materials to learn PCA feature extraction, Decoupling, restore the original signal, Extract important parameters.