基于MATLAB的有源低通滤波器设计与实现

Design and Implementation Of Active Low-frequency Filter Using MATLAB

传统的滤波器设计理论与设计方法,要求设计者不但要具备一定的工程经验,还要掌握复杂的逼近理论及繁琐的计算。为了实现快速,方便设计滤波器的目的,本文提出了利用MATLAB和归一化的表格设计滤波器的新方法,并用Pspice对设计的滤波电路进行仿真,仿真结果表明该法所设计的滤波器特性与期望的特性吻合很好,而且设计方法简单、直观、方便。

Traditional design theory and approach of filter requires designer not only have the necessary engineering experience,but also master the complex approximation theory and complicated calculation.This paper proposes a new design approach which is efficient and convenient by using MATLAB and standard design tables.The filter circuit designed is simulated by using Pspice software the experimental result shows that the property of the new designed filter is effective and meets the expected property.