对信号进行频谱分析及滤波，处理信号的时频分析，IMC-PID是利用内模控制原理来对PID参数进行计算，进行逐步线性回归，包含优化类的几个简单示例程序，包括主成分分析、因子分析、贝叶斯分析，解耦，恢复原信号，Matlab实现界面友好。- The signal spectral analysis and filtering, When processing a signal frequency analysis, The IMC- PID is using the internal model control principle for PID parameters is calculated, Stepwise linear regression, Optimization class contains several simple sample programs, Including principal component analysis, factor analysis, Bayesian analysis, Decoupling, restore the original signal, Matlab to achieve user-friendly.