fft window

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2012 4 1
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hi, the fft can be calculated with sevral windows (the step function,gaousian ext.) how can i choose what window the program uses in order to calculate the fft? is it the same for ifft as well? thank you.

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Wayne King
Wayne King 2012-4-1

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You cannot choose it inside of fft(). What you do is multipy the data by the window before you use fft()
x = randn(1e3,1);
x = x.*hamming(1e3);
xdft = fft(x);

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