基于窗函数法的FIR滤波器的仿真与实现

Simulation and implementation of FIR digital filter using window function

针对传统FIR数字滤波器设计繁琐和显示效果不直观等问题,提出一种结合窗函数理论和MATLAB仿真工具的设计方法,对比滤波前后的效果,设计的滤波器的各项性能指标均满足设计要求.同时,提出的设计方法设计过程简单,设计的滤波器精度高,可广泛应用于数字信号处理的课堂教学和工程设计中.

To the problem of design is tedious or the display effect is not direct -viewing, etc. Basing on the combination of MATLAB and window function,a design algorithm for FIR was proposed in this paper. This paper design was verified through the contrast before and after filtering effect finally, the method fits to project. The designing process is very simple and easy to use, the design and teaching in class.