用MATLAB求解Butterworth最优传递函数  

The Application of MATLAB to Evaluate the Butterworth Optimal Transfer Function

作　　者：李钟慎[1] 吕亮[1] 

机构地区：[1]华侨大学机电及自动化学院,福建泉州362021

出　　处：《华侨大学学报（自然科学版）》2007年第1期8-10,共3页Journal of Huaqiao University(Natural Science)

基　　金：福建省自然科学基金资助项目(A0410020)

摘　　要：采用MATLAB语言编写函数bwden,通过主程序调用该函数可求出任意阶Butterworth最优传递函数分母多项式的系数,绘制出Butterworth最优传递函数的极点分布图,阶跃响应曲线及波德图.8阶Butter-worth最优传递函数的求解和仿真表明,可有效且简便地用MATLAB求解Butterworth最优传递函数.The function bwden was programmed in MATLAB environment. Writing a program to call the function m order that the denominator polynomial coefficients of Butterworth optimal transfer function could be obtained, the poles-distributing diagram, step response curve and Bode diagram of Butterworth optimal transfer function were plotted. The calculation and simulation of 8th order Butterworth optimal transfer function indicated it could be evaluated efficiently and effectively in Matlab environment.

关 键 词：BUTTERWORTH滤波器 最优传递函数 函数bwden仿真 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程] O245[自动化与计算机技术—控制科学与工程]