基于遗传算法与单纯形下山法的广义切比雪夫滤波器的优化设计  

The Optimization Algorithm to Extract Equivalent Circuit Parameters for General Chebyshev Filter

作　　者：雷素茵[1] 贾宝富[1] 

机构地区：[1]电子科技大学物理电子学院,四川成都610054

出　　处：《真空电子技术》2010年第6期36-38,共3页Vacuum Electronics

摘　　要：广义切比雪夫滤波器是一种高性能滤波器形式,用经典的综合方法提取其参数复杂且难以实现。本文以指定的电路拓扑结构和传输零点作为已知条件,结合遗传算法和单纯形下山法用MATLAB编程实现了一种新的灵活、有效的广义切比雪夫滤波器等效电路参数的优化提取方法。并给出了归一化耦合系数的物理意义及其工程应用系数转换公式。General Chebyshev filter is a kind of high performance filter,whose parameters extraction with classic synthesis method is complicated and inefficient.Based on the given topology of the circuit and the position of transmission zeros,in this paper we combine genetic algorithm with downhill simplex algorithm to provide a novel flexible and effective method to extract equivalent circuit parameters for general Chebyshev filter,which MATLAB is utilized to implement.What is more,we show the physical meaning of each normalized coupling coefficient and its engineering coefficient transformation formula.

关 键 词：广义切比雪夫滤波器 遗传算法 单纯形下山法 参数优化 

分 类 号：TN731.1[电子电信—电路与系统]