高阶滤波器最佳设计与实现

The optimum design and realization of a high-order filter

介绍设计高阶滤波器的一种有效方法．此方法是根据给定的指标要求，任选基本节来建立数学模型，继而确定选代公式，进行迭代，最终构成所需网络．这一方法简便、实用、电路类型少，经计算机对实例进行模拟，所得结果精确地逼近要求特性．

An effeCtive design method for a high-order filter is introduced, according to the given specifications, an elementary unit is arbitrarily chosen, the mathematic model is built, then the calculating formuls is determined, and finally the necessary networks are established. This method is simple, converient and practical, with few classes of circuits. The simulating result approaches accurately the characteristics required.