IMC-PID是利用内模控制原理来对PID参数进行计算，计算互信息非常有用的一组程序,旋转机械二维全息谱计算的实用例程。- The IMC- PID is using the internal model control principle for PID parameters is calculated, Mutual information is useful to calculate a set of procedures, Rotating Machinery dimensional hologram of practical spectrum calculation routines.