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FIR数字滤波器的设计

于 2022-06-26 发布 文件大小:108.41 kB
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数字信号处理的核心算法是离散傅立叶变换(DFT),是DFT使信号在数字域和频域都实现了离散化,从而可以用通用计算机处理离散信号。而使数字信号处理从理论走向实用的是快速傅立叶变换(FFT),FFT的出现大大减少了DFT的运算量,使实时的数字信号处理成为可能、极大促进了该学科的发展。

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