how to implement delay to a real signal and calculate its conj complex ,i have an algorithm but it is very slow

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raj 2011-12-16

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https://ww2.mathworks.cn/matlabcentral/answers/24108-how-to-implement-delay-to-a-real-signal-and-calculate-its-conj-complex-i-have-an-algorithm-but-it-i

for m = 1:N
    s = zeros(1,N2m1);
    s(N-(m-1):N2m1-(m-1)) = F; %try applying window here
    s = conj(fliplr(s)).*s;
    s = s(1:N); 
    tfft = abs(fft(s));
end

please suggest me a different method because i have to work it out on atleast 500000 samples together but this algorithm works for only 5000 samples at a time

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Walter Roberson 2011-12-16

That has more undefined and uncommented variables than we should be expected to understand the purpose of.

raj 2011-12-17

i need to generate to code to implement WIGNER-Ville distributions for real signals of very large data size and in the code above F = analytic signal of the real signal and 'N' equals length of analytic signal and 'N2m1' = 2*N-1.. hope this helps for ur understanding

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