基于MATLAB的无限长冲激响应滤波器的设计

摘要

本文对IIR数字滤波器的设计方法进行了分析讨论，并以MATLAB7．0为平台进行了IIR滤波器的设计，给出了巴特沃斯低通、带通以及切比雪夫Ⅰ型IIR滤波器的设计方案及仿真结果。仿真结果符合滤波器设计指标要求。%This paper presents a MATLAB 7.0 based design method for an IIR filter. This paper further gives the design scheme and simulation results of Butterworth low-pass, band-pass and Chebyshev Ⅰ IIR filters. The simulation results satisfy the requirements for filter design parameters.