FIR数字滤波器的设计与仿真  

Design and Simulation of FIR Digital Filter

作　　者：陈晓文[1] 

机构地区：[1]福建信息职业技术学院,福建福州350003

出　　处：《凯里学院学报》2014年第3期111-114,共4页Journal of Kaili University

摘　　要：为了减小数字滤波器设计工作量,利用MATLAB软件,采用窗函数法、频率采样法及最优等波纹法设计FIR数字滤波器.通过比较不同设计方法得到的滤波器阶数以及幅频特性曲线,结果表明,最优等波纹法可大大减少了计算的复杂程度,所设计的滤波器简单,是FIR滤波器设计中的最优方法.In order to reduce the workload of digital filter design, FIR digital filter was designed with MATLAB software by the window function method, frequency sampling method, and optimum equivalent ripple method. Comparing the filter exponent numbers and the amplitude frequency characteristics obtained from the three design methods, optimum equivalent ripple method is the optimal method for the design of FIR filter with the least computational complexity and simplify.

关 键 词：FIR数字滤波器 窗函数法 频率采样法 最优等波纹法 MATLAB仿真设计 

分 类 号：TN713.7[电子电信—电路与系统]