...设计一个FIR数字低通滤波器,说我14行的 'ideal'没有定义...
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发布时间：2024-09-25 15:02
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时间：2024-11-10 12:35
% Ideal LowPass filter computation
% --------------------------------
% [hd] = ideal_lp(wc,M)
%hd= ideal impulse response between 0 to M-1
%wc= cutoff frequency in radians
% M= length of the ideal filter
%
alpha = (M-1)/2; n = 0:1:(M-1);
m=n- alpha; fc = wc/pi; hd = fc*sinc(fc*m);
end
注：此处的wc=(Wst-Wp)/2
