Frequency sampling is one of the popular methods in FIR digital filter design.

频率采样技术是FIR数字滤波器设计的常用方法之一。

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This paper introduces a method for FIR digital filter design. To compute and plot by using the frequency-sampling method and MATLAB makes the design of an FIR digital filter convenient.

介绍了FIR数字滤波器的设计，采用频率采样法，运用MATLAB完成设计中的计算和图形绘制，使其变得简单、快捷。

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