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SignalUtils.FlatTop Method ([In] TVec, TSignalWindowMode)
SignalUtils Class  SignalUtils Members  Dew.Signal.Units Namespace  FlatTop Method  See Also
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Flat-top window.

Syntax
C#
Visual Basic
public static TVec FlatTop([In] TVec Src, TSignalWindowMode WindowMode);
Remarks

Applies Flat top 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. Flat top window was used to get more accurate amplitude information when frequency interpolation routines where not yet common. 

w[i] = 0.2810639 - 0.5208972*cos(2*Pi*i/(n-1)) + 0.1980399*cos(4*Pi*i/(n-1))) 

0 < i < n-1

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