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radix 2 dis in frequency

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ayman osama
ayman osama 2012-12-6
for K=0:7
for N=0:3
if mod(K,2)==0
v(N+1)=(x(N+1)+x(N+5))*exp(-1i*N*K*pi/2);
elseif mod(K,2)==1
v(N+1)=((x(N+1)-x(N+5))*exp(-1i*N*pi/4))*exp(-1i*N*K*pi/2);
end
end
Y(K+1)=sum(v);
end
i assume that is radix 2 disspation in frequency what's wrong in it

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