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离散信号的DTFT和DFT 包括实验原理、实验要求和实验内容

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.............................................................................................................