Hamming window.
function Hamming(const Src: TVec; WindowMode: TSignalWindowMode): TVec; overload;
Applies Hamming window to Src. Window functions are applied to the signal prior to conversion to frequency domain with the FFT algorithm, to reduce the spectral leakage. Their side-effect is a lower frequency resolution. Hamming window can be found in [1] p. 249
w[i] = 0.54 - 0.46*cos(2*Pi*i/(n-1)) 0 <= i <= n-1
References:
[1] Digital signal processing, Vinay K. Ingle and John G. Proakis, Brooks-Cole, 2000.
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