摘要
巴特沃斯滤波属于IIR数字滤波,它不仅有最大平坦限度的幅频响应特性,而且还有良好的线性相位特性、结构简单等特点,是一种应用比较广泛的数字滤波器。本文介绍了利用Matlab函数和FDAtool工具箱设计巴特沃斯低通数字滤波器,提出了设计方法和设计步骤,并将设计结果在Simulink平台下进行仿真,实验结果可靠、准确地实现了低通滤波。
Butterworth filter belong to IIR digital filter, it not only have the largest flat limit amplitude frequency response characteristics, and has a good linear phase characteristics, the characteristics of simple structure, is a kind of digital filter is widely. This paper introduces the use of Matlab functions and FDAtool toolbox to design butterworth low-pass digital filter, puts forward the design method and design steps, and the design results in Simulink simulation platform, the experimental results is reliable and accurate to achieve the low pass filter.
出处
《科技视界》
2016年第21期96-97,共2页
Science & Technology Vision
