基于多修改点胚胎键合图的模拟电路自动设计*

采用键合图表示电路系统，研究了基于两种不同胚胎键合图的模拟电路进化设计方法。该方法利用遗传编程开放式拓扑搜索的特点，模拟一组特征值，并用键合图和遗传编程对该组初始胚胎进行进化，总结了两种结构对进化设计结果的影响，得出由三个可修改点胚胎进化的电路优于由一个可修改点胚胎进化的电路，三个可修改点胚胎进化具有更平衡的结构。最后进化设计了一个模拟带阻滤波器，进一步证明了该方法的可行性和有效性。

Automated synthesis of analog circuit based on multi-modified site embryo bond graphs

By using bond graph to represent the circuit system,this paper studied the automated synthesis of analog circuit based on two types of embryo bond graphs. Using the open-ended search of genetic programming, this method simulated a group of eigenvalues, evolved two embryos combining of the bond graphs and genetic programming.Investigated the influence of two structures in automated synthesis, and found the circuit evolved by embryo with three modifiable sites, whose structure was more balanced,was prior to that with one modifiable site. Finally,evolved an analog band stop filter with automated synthesis and proved the feasibility and efficiency of this method.