real2dft.m

matlab例子

function [X1,X2]=real2dft(x1,x2,N)
%两个实序列的DFTs
%[X1,X2]=real2dft(x1,x2,N)
%X1=x1的n点的DFT
%X2=x2的n点的DFT
%x1=长度<=N的序列
%x2=长度<=N的序列
%N=DFT的长度

x1=[x1,zeros(1,N-length(x1))];
x2=[x2,zeros(1,N-length(x2))];
x=x1+j*x2;
X=dft(x,N);
[X1,X2]=circevoc(X);