基于MATLAB的数字滤波器的设计

Design of Digital Filter based on MATLAB

数字滤波是语音和图象处理、模式识别、谱分析等应用中的一个基本处理算法,在数字信号处理中,占有极其重要的地位.文中阐述了FIR数字滤波器的设计思想,结合带通滤波器的设计实例,介绍了用MATLAB来实现的过程,得到了正确的波形,对数字滤波器的推广应用有一定的促进作用.

Digital filter is a basic settlement calculation method to speech sounds, image settlement, pattern discrimination and chart analysis. It plays a very important role in digital signal dealing with. This article states FIR digital filter＇s designing thought, and introduces the realization process based on Matlab by uniting an example of band passing filter＇s design, and then correct wave pattern is obtained will help to, promote the digital filter＇s application in a wider field.