?? ideal_bandpass_filter_iimpulse_response.m
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% dbp.m - ideal bandpass FIR filter%% h = dbp(wa, wb, N) = row vector%% N = 2M+1 = filter length (odd)% wa, wb = cutoff frequencies in [rads/sample]function h = dbp(wa, wb, N)M = (N-1)/2;for k = -M:M, if k == 0, h(k+M+1) = (wb - wa) / pi; else h(k+M+1) = sin(wb * k) / (pi * k) - sin(wa * k) / (pi * k); endend?? 快捷鍵說明
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