second order processes

In general textbooks of stochastic process,only the equivalency between mean square differentiability of the process and generalized differentiability of the relevant function about a second moment stochastic process is expounded.

一般的随机过程教材中只对一个二阶矩过程均方可导与其相关函数广义可导的等价性进行论述。

A method of closed-loop identification under PID and identifying parameters of proposed second-order process model through relationship of mode and phase in frequency domain method are proposed.

提出了在PID条件下闭环辨识的方法,运用频域法,通过有关模和相角的关系,辨识出假定二阶过程模型的有关参数。