基于Matlab的FIR数字滤波器设计  

Design of FIR Digital Filter based on Matlab

作　　者：郭天赐[1] 

机构地区：[1]河南大学欧亚国际学院,河南开封475001

出　　处：《河南科技》2015年第10期42-44,共3页Henan Science and Technology

摘　　要：FIR数字滤波器是数字信号处理的一个重要组成部分,由于FIR数字滤波器具有严格的线性相位,因此,在信息采集和处理过程中得到了广泛的应用。本文介绍了FIR数字滤波器的概念,并在分析三种设计方法原理的基础上,借助Matlab仿真软件工具分别实现窗函数法、频率采样法和等波纹逼近法设计FIR滤波器。FIR digital fiher is an important part of digital signal processing, due to its strict linear phase, so in the pro- cess of information acquisition and processing, it has been widely used. The concept of FIR digital filter is introduced in this paper, and based on the analysis of three design principles and methods, with the tool of MATLAB simulation software, FIR digital filter is designed by the window function method and frequency sampling method and the ripple approximation method respectively.

关 键 词：数字滤波器 FIR滤波器 设计 

分 类 号：TN713.7[电子电信—电路与系统]