基于Matlab的无失真模拟滤波器设计  

Design of Non-distortion Analog Filter Based on Matlab

作　　者：胡春筠[1] 蔡坤[1] 陆建强[1] 代芬[1] 

机构地区：[1]华南农业大学,广东广州510640

出　　处：《现代电子技术》2009年第5期87-89,共3页Modern Electronics Technique

基　　金：2005年广东省高等院校学科建设专项资金-电子信息工程名牌专业(0041301020070505)

摘　　要：介绍用Matlab设计出一个由低通、带阻、相移滤波器构成的无失真模拟滤波器方法。分别给出各个滤波器的设计过程、仿真结果、实际电路图,并在最后给出了经过无失真滤波器后输出信号的眼图。眼图结果表明,无失真滤波器的幅频、相频特性良好。说明用Matlab设计模拟滤波器简单、方便、有效,是一个在滤波器设计方面很有力的工具。This paper introduces the design of a non- distortion analog filter composed of low - pass, band - stop and phase-shift filters using Matlab. The paper also describes the design process, simulation result, practical circuit diagram of each filter respectively. Finally the eye-diagram of the output signal of the non-distortion analog filter is shown, which indicates that the characteristics of the amplitude - frequency and the phase - frequency of the non - distortion analog filter are good. The result indicates that it＇s simple,convenient,effective to use Matlab to design an analog filter and Matlab is powerful tool in designing filters.

关 键 词：MATLAB 模拟滤波器 低通滤波器 带阻滤波器 相移滤波器 

分 类 号：TN713[电子电信—电路与系统]