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fir-high

于 2012-01-05 发布 文件大小:29KB
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  用汉宁窗函数法设计一个数字FIR高通滤波器,要求通带边界频率为500Hz,阻带边界频率为400Hz,通带最大衰减1dB,阻带最小衰减40dB,抽样频率为2000Hz,用MATLAB画出幅频特性,画出并分析滤波器传输函数的零极点(With han ning window function method to design a digital FIR high-pass filter, request bandpass boundary frequency for 500 Hz, stop-band boundary frequency for 400 Hz, bandpass biggest 1 dB attenuation, stop-band attenuation least 40 dB, sampling frequency for 2000 Hz, MATLAB draw the amplitude frequency characteristics, painted and analysis filter transmission function of zero poles)

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