对信号进行频谱分析及滤波，用于特征降维，特征融合，相关分析等,用于建立主成分分析模型，仿真效果非常好，是一种双隐层反向传播神经网络，IMC-PID是利用内模控制原理来对PID参数进行计算，主同步信号PSS在时域上的相关仿真，包括 MUSIC算法，ESPRIT算法 ROOT-MUSIC算法。- The signal spectral analysis and filtering, For feature reduction, feature fusion, correlation analysis, Principal component analysis model for establishing, Simulation of the effect is very good, Is a two hidden layer back propagation neural network, The IMC- PID is using the internal model control principle for PID parameters is calculated, PSS primary synchronization signal in the time domain simulation related, Including the MUSIC algorithm, ESPRIT algorithm ROOT-MUSIC algorithm.