自适应滤波器综合实验设计

Design on comprehensive experiment of adaptive filter

为了更好传授现代数字信号处理中自适应滤波器的知识,设计了自适应滤波器的综合实验。利用Matlab语言实现了最小均方自适应横向滤波器和图形用户界面,可以在界面上方便地调节信噪比、滤波器的阶数、步长等参数,并从时域和频域两方面显示滤波效果。该实验不仅可以使学生更好地理解自适应滤波器的原理,而且可以促使学生探究影响自适应滤波器性能的因素。

In order to better teach the knowledge of the adaptive filter in modern digital signal processing,a comprehensive experiment of the adaptive filter is designed.Matlab language is used to realize the least mean square adaptive transversal filter and the graphical user interface,which can conveniently adjust the parameters of the signal-to-noise ratio,the filter order and step length on the interface,and the filtering effect is shown from the two aspects of the time domain and frequency domain.This experiment can not only help students to better understand the principle of the adaptive filter,but also promote them to explore the factors that affect the performance of the adaptive filter.