| 基于Matlab的IIR数字滤波器设计方法比较及应用 |
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| 引用本文： | 庞建丽,高丽娜. 基于Matlab的IIR数字滤波器设计方法比较及应用[J]. 现代电子技术, 2010, 33(11): 103-105,110 |
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| 作者姓名： | 庞建丽 高丽娜 |
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| 作者单位： | 黄淮学院,信息工程系,河南,驻马店,463000 |
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| 摘 要： | 滤波是信号处理的基础,滤波运算是信号处理中的基本运算,滤波器的设计也就相应成为数字信号处理的最基本问题之一。这里着重IIR数字滤波器的设计研究,应用Butterworth滤波器,ChebysheveⅠ型滤波器,ChebysheveⅡ型滤波器以及椭圆滤波器分别对低通、高通、带通和带阻四种滤波器形式进行比较仿真,通过不同设计方法的对比,将各种滤波器的设计特点很好地呈现出来。应用了Butterworth滤波器实现了混合信号频谱的分离,取得了良好的仿真效果。
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| 关 键 词： | IIR数字滤波器 频谱分离 Matlab仿真 信号检测 |
Comparison of Matlab-based Design Methods and Application of IIR Digital Filters |
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| PANG Jian-li,GAO Li-na. Comparison of Matlab-based Design Methods and Application of IIR Digital Filters[J]. Modern Electronic Technique, 2010, 33(11): 103-105,110 |
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| Authors: | PANG Jian-li GAO Li-na |
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| Affiliation: | PANG Jian-li,GAO Li-na(Information Engineering Department,Huanghuai University,Zhumadian 463000,China) |
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| Abstract: | The design of IIR digital filter is researched emphatically.The comparison of four types of low pass,high pass,band pass and band-stop filtering modes is respectively simulated with Butterworth,Chebysheve I,Chebysheve II and elliptic filters.The design features of the various filters are offered through the comparison of different design methods.The separation of mixed-signal spectrum was achieved with Butterworth filter.A good simulation effect was obtained. |
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| Keywords: | IIR digital filter spectrum separation Matlab simulation signal detection |
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