an existing signal : x (n) = a cos (* n/4) cos (2** n/3) design and digital filter to achieve the following objectives : low-pass filter, filter cos (2** n/3) the ingredients that want to retain an element of a cos (* n/4) high-pass filter, a filter cos (* n/4) components, namely to retain the element of cos (2** n/3) band-pass filter , a filter cos (2** n/3) components, namely to retain the element of cos (* n/4) band stop filter, the filter cos (* n/4) components, namely to retain the ingredients for a cos ( 2** n/3) 1. MATLAB order butterord except for the band Filter, using the order of the filter design butter; paint Filter magnitude and phase frequency of the corresponding filter system function H (z).

Packet : 17869352iir滤波器设计.rar filelist
IIR滤波器设计
IIR滤波器设计\sy3_fft_bp.m
IIR滤波器设计\sy3_fft_bs.m
IIR滤波器设计\sy3_fft_hp.m
IIR滤波器设计\sy3_fft_lp.m
IIR滤波器设计\第二篇 实验三IIR滤波器设计.doc

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