基于VC++的数字滤波器的设计

Design of VC + + Based Digital Filter

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.