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§2.4 结构图与信号流图 PowerPoint PPT Presentation


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§2.4 结构图与信号流图. 信号流图及梅逊公式. 烟台大学光电信息学院. 2.4.3 信号流图的组成及性质. 结构图是一种很有用的图示法。但是对于复杂的控制系统,结构图的简化过程仍较复杂,且易出错。 Mason 提出的信号流图,既能表示系统的特点,而且还能直接应用梅逊公式方便的写出系统的 传递函数 。因此,信号流图在控制工程中也被广泛地应用。. 1. 信号流图的组成. 信号流图起源于梅森利用图示法描述一个或一组线性代数方程,它是由 节点 和 支路 组成的一种信号传递网络。. (1)节点:“  ”,代表一个变量。 (2)支路:“  ”,表示信号的传递方向。

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§2.4 结构图与信号流图

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