系统方程与框图的快速转换

Fast Conversion between Block Diagrams and Equations

在信号与系统中,模拟方框图对于系统的建模及实现具有重要的作用,而在系统的分析中,也常常需要将实际系统的框图和方程进行相互转换。针对目前系统框图与方程之间的转换所采用的方法费时且计算量大的特点,提出了一种基于系统的线性时不变性的方程与框图的快速转换方法。实例说明:此快速转换方法简单、可行,只需要通过简单移位变换即可实现系统框图与方程的快速转换,从而省去了大量的中间数学推导过程。

Block diagrams takes an important role in system＇s modeling and realizing in signal and systems,while it is usually necessary to exchange between system equation and block diagrams in system analysis.At present,the common method for the conversion between system equation and block diagrams is complicated and taking much time.It is for this reason that we have proposed a method for fast conversion between equations and block diagrams based on the linear time invariant of systems.The example shows that this method is simple and available,and can save much more time for mathematical deduction through simple changing.