鉴频电路机辅优化设计

Computer Aided Optimizing Design For Discriminator Circuit

本文讨论采用随机搜索法,计算机辅助优化设计鉴频电路。提出鉴频特性函数F_1(Q、K、Δf),理想鉴频特性函数F_0(Δf)及目标函数F的表达式。这方法随机选择电路品质因数Q及电感L_1、L_2之间耦合系数K的值,搜索目标函数F的极小值,从而得到Q、K的优化值。

In this paper a method of computer aided design for discriminator circuit using the random search to approach the optimum is described the expressions of characteristic function F1 (Q, K, △f), Ideal characteristic function Fo (△f) and objective function F of discriminator are presented. This method allows to select the values of circuit quality factor Q and coupling factor K between inductors L1 and L2 in the circuit at random search for the minimum value of objective function F and then obtain the optimum values of Q and K.