IIR带通滤波器的实现

Realization of IIR Bandpass Filter

随着数字技术的飞速发展,基于DFT算法,在本质上为一种数字处理技术的数字滤波理论也得到了长足的进步。因此,对数字滤波系统硬件实现的要求也越来越高,而软件模拟的方法不仅能及时地提供系统运行的信息,还可以随时改变系统结构从而验证全新的系统,所以软件仿真变得非常实用与重要。本文就是通过MATLAB程序来验证无限长脉冲响应数字带通滤波器(IIRBPF)系统的运行情况,从而得到系统重要的信息,成为设计系统的重要依据。

With the rapid development of digital technology based on the calculation of DFT,digital process technology of the digital filter has made a quiet great progress in essence.Therefore,the requirement of the hardware,which is used in the digital filter system,becomes stricter.In comparation,the simulation resorts to software not only supply the running information of the system,but also change the configuration of the system at any monment,this is quite helpful to validating a completely new system,so,software simulations becomes quite practicality and important in modern time.The paper validates the running conditions of the IIRBPF by using the MATLAB program,by this means,achieve the important information of the system,which is the warranty in the system design.