本方法以实际系统的输入输出信号为依据，实现系统建模，用被控对象传递函数的逆作为串联控制器来对系统的动态特性进行控制。
Using the input and output signal, the method can model the system, and can control the dynamical property of the system with the inverse transfer function of the controlled object as the controller.
采用辅助变量辨识方法辨识得到单输入单输出差分方程和Z传递函数。
Through instrumental variable identification method, the single input single output difference equations and the Z transfer function were gotten.
根据这些曲线和图表，以及管道的基本参数，管理工程的设计者可以很方便地求得不同输入和输出之间的传递函数。
With these curves and graphs, the designers may obtain the transfer functions of different inputs and outputs from basic parameters of gas pipeline conveniently.
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