FFT_matlab實現

MATLAB程blog clear;clc;clf; N=16; n=0:15; xn=[3 0 8 0 1 0 3 0 1 1 0 0 0 0 0 0]; %xn=[3 0 8 0 1 0 3 0 1 1 12 0 2 0 5 2]; W=[1 1 1 1;1 -1j -1 1j;1 -1 1 -1;1 1j -1 -1j]; X1=0.*n; for n0=0:3     X1(n0+1)=W

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