COATES GRAPH APPROACH FOR GENERATING SYMBOLIC NETWORK FUNCTION

In this paper, symbolic code matrix ,constant matrix and count matrix are defined .The first twomatrices are used to describe the elemental expression of augmented matrix and the nede admittance equa-tion is thus obtained. The third matrix is used to obtain the incoming degree matrix, and according to thematrix all the 1- factors of the Coates graph are given. By using the data code, the determinant is expandedand the same items in the expansion are merged. Thus the symbolic network function in which no term can-cellation occurs is generated.     

计算机实现有源网络全符号函数的一种方法

本文定义一种三维字符数组,用数组的第三维存放节点电导方程中元素的字符表达式,根据电网络的输入信息,自动列出节点电导方程.按照作者1982年一文提出的求Coates图的1-因子定理,给出方程的全符号函数解.此法与其他有源网络的拓扑分析法比较,如Mason图的方法,有不少优点,具有实用价值.     

产生全符号网络函数的Coates流图法

本文引入符号码数组、常数数组和记数数组,前二数组用来描述增广矩阵的元素表达式,建立节点导纳方程,后一数组用来写出入度矩阵,然后根据入度矩阵产生Coates流图的全部1-因子增益。在展开行列式时利用符号代码合并同类项,消去相消项,从而得到无相消项的全符号网络函数。