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 efficient way to design high-order filters is introduced. This method is based on the given index requirements, optional basic section to establish a mathematical model, and then determine the substitution formula, iteration, and ultimately constitute the required network. This method is simple, practical, less circuit type, the computer simulation of the examples, the results accurately approximation of the required characteristics.