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电网络的符号网络函数分析方法是电路CAD的重要分支,由于它的结果是电网络参数的解析表达式,所以具有许多数值方法难以达到的效果,使得电路描述用数学的方法更加一般化。符号分析方法的发展和应用,是电路CAD技术从方法到理论进一步成熟的表现。从符号网络函数描述的电路上看,分为全符号,部分符号和只含角频率的三种符号网络函数。符号分析的方法主要分为拓扑法和代数法,前者主要有树法、信号流图法等;代数法有参数抽
The symbolic network function analysis method of electric network is an important branch of circuit CAD. Because its result is an analytical expression of electric network parameters, it has many effects which are hard to be achieved by numerical methods and makes the circuit description more generalized by mathematical methods. The development and application of the symbolic analysis method is the performance of the circuit CAD technology from the method to the theory matures further. From the description of the network of symbolic functions of the circuit point of view, is divided into full symbol, part of the symbol and only contains the angular frequency of the three symbolic network functions. Symbol analysis methods are mainly divided into topological and algebraic methods, the former mainly tree method, signal flow graph method; algebra method parameters pumping