基于VC++的数字滤波器的设计  

Design of VC + + Based Digital Filter

作　　者：李怀洲[1] 丁兆国[1] 徐伯庆[1] 杨永才[1] 

机构地区：[1]上海理工大学光学与电子信息工程学院,上海200093

出　　处：《自动化仪表》2004年第12期18-20,共3页Process Automation Instrumentation

摘　　要：介绍了IIR数字滤波器的计算机辅助设计思想与步骤。以一数字低通、高通、带通、带阻滤波器为例,着重说明了基于VC++的两种实现手段:模拟-数字转换法实现巴特沃思、切比雪夫数字滤波器,为数字滤波器设计带来全新的实现手段,设计快捷方便,仿真波形直观,应用于辅助教学效果显著。The concept and procedures of computer aided design of IIR digital filters are introduced. With a digital low pass, high pass, band pass, band resistant filter as an example, two kinds of methods of implementation based on VC ++ are emphasized. These measures include Butterworth and Chebyshev digital filter based on analog-digital conversion. These introduce wholly new implementing method, as well as fast and easy design. The simulation waveforms are directly perceived, thus bring outstanding effects on supplemental education.

关 键 词：IIR数字滤波器 带通 低通 带阻滤波器 高通 数字转换 仿真波形 VC++ 计算机辅助设计 辅助教学 

分 类 号：TH811[机械工程—仪器科学与技术] TN713[机械工程—精密仪器及机械]