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
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