最小二乘回归分析算法，能量熵的计算，IMC-PID是利用内模控制原理来对PID参数进行计算，独立成分分析算法降低原始数据噪声，随机调制信号下的模拟ppm。-Least-squares regression analysis algorithm, Energy entropy calculation, The IMC- PID is using the internal model control principle for PID parameters is calculated, Indepe