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于 2011-05-24 发布文件大小:25KB

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说明：根据滤波器指标选择合适的窗函数，计算窗函数的长度N，调用MATLAB函数fir1设计一个FIR低通滤波器。并编写程序，调用MATLAB快速卷积函数fftfilt实现对xt的滤波。绘图显示滤波器的频响特性曲线、滤波器输出信号的幅频特性图和时域波形图。  (Select the appropriate indicators according to filter window function, calculate the length of window function N, called MATLAB function fir1 design a FIR low-pass filter. And programming, call MATLAB functions fftfilt achieve fast convolution filtering xt. Graphics filter frequency response curve, the filter output signal amplitude and frequency characteristics of maps and time-domain waveform.  )

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2012-09-09 11:48:39下载

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2011-07-09 12:34:18下载

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2013-11-18 14:45:41下载

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2013-05-19 22:15:43下载

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2010-11-05 20:48:24下载

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2010-04-13 15:38:45下载

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2011-08-11 21:46:21下载

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