| 计算机控制中数字滤波器的工程设计方法 |
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| 引用本文： | 董廼斌.计算机控制中数字滤波器的工程设计方法[J].北京工商大学学报(自然科学版),1988(2). |
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| 作者姓名： | 董廼斌 |
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| 作者单位： | 北京轻工业学院自动化工程系 |
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| 摘 要： | 本文结合一个工业控制对象,提出了一种设计数字滤波器的工程方法。首先利用FFT方法对有用信号与噪声进行频率与幅值的定量分析,根据分析结果利用成熟的模拟网络理论设计相应模拟滤波器的传递函数,然后从模拟滤波器映射(变换)成数字滤波器。最后利用软件对所设计的数字滤波器进行检验。同时本文还给出了一个计算机辅助设计Butterwor-th低通数字滤波器的程序。
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| 关 键 词： | 计算机控制 数字滤波器 数字信号处理 |
ENGINEERING DESIGN METHOD OF DIGITAL FILTER ON COMPUTER CONTROL |
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| Dong Naibin Beijing Institute of Light Industry.ENGINEERING DESIGN METHOD OF DIGITAL FILTER ON COMPUTER CONTROL[J].Journal of Beijing Technology and Business University:Natural Science Edition,1988(2). |
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| Authors: | Dong Naibin Beijing Institute of Light Industry |
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| Affiliation: | Dong Naibin Beijing Institute of Light Industry |
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| Abstract: | This text introduces an engineering design method of digital filter in light of
an industrial process.
The method makes a pualitative analysis of frequency and range of useful signal
and noise by using FFT (Fast Fouries Transform), designs transfer function of
analongue filter according to the result of analysis and then changes from analogue
filter to digital filter. There is software to test the digital filter. It gives a Bat-
terworth Low pass Digital filter CAD program, too. |
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| Keywords: | computer control digital filter digital signal procsing |
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