matlab低通滤波器设计

matlab 低通滤波 详细教程 1、Matlab 设计 IIR 基本示例.........................................................................................................1 （1）直接设计数字滤波器.....................................................................................................1 （2）脉冲相应不变法.............................................................................................................2 （3）双线性变换.....................................................................................................................2 （4）双线形变换法设计 chebyshev 高通滤波器..................................................................3 （5）使用 MatLab6 下的 Filter Designed Tool ......................................................................4 2、Matlab 设计 IIR 高级示例.........................................................................................................4 （1）双线性变换实现 ButterWorth 低通...............................................................................4 （2）双线性变换法实现 Chebyshev 低通（I型）...............................................................5 （3）低通变换为高通.............................................................................................................6 （2）低通变换为带通.............................................................................................................7 （3）低通变换为带通（双线性变换）.................................................................................8 3、Matlab 窗函数设计 FIR 滤波器基本示例................................................................................9 （1）低通滤波器实现.............................................................................................................9 （2）带通滤波器实现.............................................................................................................9