摘要
介绍了巴特沃思(Butterworth)滤波器的应用、本质、特点、类型和设计实现步骤,通过对MATLAB信号处理工具箱中滤波器实现函数代码分析,提出了较标准双线性变换法步骤更简便的数字巴特沃思滤波器设计方法,并通过编程仿真实现数据滤波。
The applications, essence, characteristics, types, the design and implementation steps of the Butter worth filter were introduced. Through analysis of filter＇s function code in the matlab signal processing toolbox, the Butter-worth filter method simple than the standard bilinear transform was designed. The data filting was implemented by programming and simulation.
出处
《延安大学学报（自然科学版）》
2008年第3期45-48,共4页
Journal of Yan'an University：Natural Science Edition
